From cdbf0609397e1515110ca3113fffae89acb0b8f2 Mon Sep 17 00:00:00 2001
From: eugene <elh@users.noreply.github.com>
Date: Sun, 6 Feb 2022 17:20:23 -0800
Subject: [PATCH] Update _testoutput format (#19)

* update test output format to include test name (and other future context)
* save test output for the example tests
* update test output format to support multiple keys
---
 README.md                                     |   2 +-
 dbtest/test.go                                |  51 ++-
 ..._empty_db_delete_with_no_match_is_nop.json |   7 +-
 ...active_set_overlaps_multiple_versions.json |  87 ++---
 ...sting_entry_no_valid_end_basic_delete.json |  39 ++-
 ...r_if_end_valid_time_before_valid_time.json |  23 +-
 ...before_valid_time_default_valid_time_.json |  23 +-
 ...if_end_valid_time_equal_to_valid_time.json |  23 +-
 ..._end_set_w_valid_time_end_no_overhang.json |  23 +-
 ...iginal_record_overhands_on_both_sides.json |  55 +--
 .../TestGet_empty_db_not_found.json           |   7 +-
 ...update_as_of_valid_time_before_update.json |  39 ++-
 ...me_before_update_as_of_valid_time_now.json |  39 ++-
 ...me_now_as_of_valid_time_before_update.json |  39 ++-
 ...id_time_not_found_default_as_of_times.json |  39 ++-
 ...update_as_of_valid_time_before_update.json |  55 +--
 ...me_before_update_as_of_valid_time_now.json |  55 +--
 ...me_now_as_of_valid_time_before_update.json |  55 +--
 ..._valid_time_found_default_as_of_times.json |  55 +--
 ...no_end_found_as_of_tx_time_T_in_range.json |  23 +-
 ...d_as_of_tx_time_T_in_range_inclusive_.json |  23 +-
 ...end_found_as_of_valid_time_T_in_range.json |  23 +-
 ...s_of_valid_time_T_in_range_inclusive_.json |  23 +-
 ..._set_no_end_found_default_as_of_times.json |  23 +-
 ..._as_of_tx_time_T_before_tx_time_start.json |  23 +-
 ..._valid_time_T_before_valid_time_start.json |  23 +-
 ...nd_as_of_valid_and_tx_time_T_in_range.json |  23 +-
 ..._of_valid_time_T_after_valid_time_end.json |  23 +-
 ..._T_equal_to_valid_time_end_exclusive_.json |  23 +-
 ...ith_end_not_found_default_as_of_times.json |  23 +-
 .../TestHistory_empty_db_not_found.json       |   7 +-
 ...r_valid_time_returns_deleted_versions.json |  39 ++-
 ...action_time_descending_end_valid_time.json |  55 +--
 ...action_time_descending_end_valid_time.json |  39 ++-
 ...gle_set_no_end_basic_return_1_version.json |  23 +-
 ...e_set_with_end_basic_return_1_version.json |  23 +-
 ...action_time_descending_end_valid_time.json |  39 ++-
 ...ist_A_B_values_found_as_of_valid_time.json |  23 +-
 ..._A_B_values_found_default_as_of_times.json |  23 +-
 ...lues_not_found_as_of_transaction_time.json |  23 +-
 ...st_A_values_found_default_as_of_times.json |  23 +-
 .../TestList_empty_db_not_found.json          |   7 +-
 memory/_testoutput/TestRobinhoodExample.json  |  51 +++
 .../TestSet_empty_db_basic_set.json           |  23 +-
 ...et_empty_db_basic_set_with_valid_time.json |  23 +-
 ...et_with_valid_time_and_end_valid_time.json |  23 +-
 ...TestSet_empty_db_can_set_value_of_nil.json |  23 +-
 ...r_if_end_valid_time_before_valid_time.json |   7 +-
 ...before_valid_time_default_valid_time_.json |   7 +-
 ...if_end_valid_time_equal_to_valid_time.json |   7 +-
 ...error_if_end_valid_time_in_the_future.json |   7 +-
 ...TestSet_empty_db_error_if_key_not_set.json |   7 +-
 ...ror_if_start_valid_time_in_the_future.json |   7 +-
 ...active_set_overlaps_multiple_versions.json | 103 +++---
 ...existing_entry_no_valid_end_basic_set.json |  55 +--
 ..._end_set_w_valid_time_end_no_overhang.json |  39 ++-
 ...iginal_record_overhands_on_both_sides.json |  71 ++--
 .../TestTXDBCrimeInvestigationExample.json    | 331 ++++++++++++++++++
 memory/db_examples_test.go                    |   3 +
 .../TestGet_empty_db_not_found.json           |   7 +-
 ...update_as_of_valid_time_before_update.json |  63 ++--
 ...me_before_update_as_of_valid_time_now.json |  63 ++--
 ...me_now_as_of_valid_time_before_update.json |  63 ++--
 ...id_time_not_found_default_as_of_times.json |  63 ++--
 ...update_as_of_valid_time_before_update.json |  91 ++---
 ...me_before_update_as_of_valid_time_now.json |  91 ++---
 ...me_now_as_of_valid_time_before_update.json |  91 ++---
 ..._valid_time_found_default_as_of_times.json |  91 ++---
 ...no_end_found_as_of_tx_time_T_in_range.json |  35 +-
 ...d_as_of_tx_time_T_in_range_inclusive_.json |  35 +-
 ...end_found_as_of_valid_time_T_in_range.json |  35 +-
 ...s_of_valid_time_T_in_range_inclusive_.json |  35 +-
 ..._set_no_end_found_default_as_of_times.json |  35 +-
 ..._as_of_tx_time_T_before_tx_time_start.json |  35 +-
 ..._valid_time_T_before_valid_time_start.json |  35 +-
 ...nd_as_of_valid_and_tx_time_T_in_range.json |  35 +-
 ..._of_valid_time_T_after_valid_time_end.json |  35 +-
 ..._T_equal_to_valid_time_end_exclusive_.json |  35 +-
 ...ith_end_not_found_default_as_of_times.json |  35 +-
 .../TestHistory_empty_db_not_found.json       |   7 +-
 ...r_valid_time_returns_deleted_versions.json |  63 ++--
 ...action_time_descending_end_valid_time.json |  91 ++---
 ...action_time_descending_end_valid_time.json |  63 ++--
 ...gle_set_no_end_basic_return_1_version.json |  35 +-
 ...e_set_with_end_basic_return_1_version.json |  35 +-
 ...action_time_descending_end_valid_time.json |  63 ++--
 ...ist_A_B_values_found_as_of_valid_time.json |  35 +-
 ..._A_B_values_found_default_as_of_times.json |  35 +-
 ...lues_not_found_as_of_transaction_time.json |  35 +-
 ...st_A_values_found_default_as_of_times.json |  35 +-
 .../TestList_empty_db_not_found.json          |   7 +-
 91 files changed, 2212 insertions(+), 1380 deletions(-)
 create mode 100644 memory/_testoutput/TestRobinhoodExample.json
 create mode 100644 memory/_testoutput/TestTXDBCrimeInvestigationExample.json

diff --git a/README.md b/README.md
index 0a9a447..4f6d811 100644
--- a/README.md
+++ b/README.md
@@ -3,7 +3,7 @@
 [![Go Reference](https://pkg.go.dev/badge/github.com/elh/bitempura.svg)](https://pkg.go.dev/github.com/elh/bitempura)
 [![Build Status](https://github.com/elh/bitempura/actions/workflows/go.yml/badge.svg?branch=main)](https://github.com/elh/bitempura/actions/workflows/go.yml?query=branch%3Amain)
 [![Go Report Card](https://goreportcard.com/badge/github.com/elh/bitempura)](https://goreportcard.com/report/github.com/elh/bitempura)
-[![Go Non-Test Lines Of Code](https://tokei.rs/b1/github/elh/bitempura?category=code)](https://github.com/elh/bitempura/blob/main/.tokeignore)
+[![Go Non-Test Lines Of Code](https://tokei.rs/b1/github/elh/bitempura?category=code)](https://github.com/elh/bitempura/blob/main/.tokeignore) <sup><sup>*non-test</sup></sup>
 
 **Bitempura.DB is a simple, [in-memory](https://github.com/elh/bitempura/blob/main/memory/db.go), [bitemporal](https://en.wikipedia.org/wiki/Bitemporal_Modeling) key-value database.**
 
diff --git a/dbtest/test.go b/dbtest/test.go
index 729a2c7..4c69bbc 100644
--- a/dbtest/test.go
+++ b/dbtest/test.go
@@ -311,7 +311,7 @@ func TestGet(t *testing.T, oldValue, newValue Value, dbFn func(kvs []*VersionedK
 			t.Run(fmt.Sprintf("%v: %v", s.fixtures.name, tC.desc), func(t *testing.T) {
 				db, closeFn, err := dbFn(s.fixtures.vKVs())
 				defer closeFn()
-				defer writeOutputHistory(db, "A", t.Name())
+				defer WriteOutputHistory(db, []string{"A"}, t.Name())
 				require.Nil(t, err)
 				ret, err := db.Get(tC.key, tC.readOpts...)
 				if tC.expectErrNotFound {
@@ -449,7 +449,7 @@ func TestList(t *testing.T, oldValue, newValue Value, dbFn func(kvs []*Versioned
 			t.Run(fmt.Sprintf("%v: %v", s.fixtures.name, tC.desc), func(t *testing.T) {
 				db, closeFn, err := dbFn(s.fixtures.vKVs())
 				defer closeFn()
-				defer writeOutputHistory(db, "A", t.Name())
+				defer WriteOutputHistory(db, []string{"A"}, t.Name())
 				require.Nil(t, err)
 				ret, err := db.List(tC.readOpts...)
 				if tC.expectErr {
@@ -921,7 +921,7 @@ func TestSet(t *testing.T, dbFn func(kvs []*VersionedKV, clock Clock) (DB, error
 			t.Run(fmt.Sprintf("%v: %v", s.fixtures.name, tC.desc), func(t *testing.T) {
 				clock := &TestClock{}
 				db, err := dbFn(s.fixtures.vKVs(), clock)
-				defer writeOutputHistory(db, "A", t.Name())
+				defer WriteOutputHistory(db, []string{"A"}, t.Name())
 				require.Nil(t, err)
 				if tC.now != nil {
 					require.Nil(t, clock.SetNow(*tC.now))
@@ -1260,7 +1260,7 @@ func TestDelete(t *testing.T, oldValue, newValue Value, dbFn func(kvs []*Version
 				clock := &TestClock{}
 				db, closeFn, err := dbFn(s.fixtures.vKVs(), clock)
 				defer closeFn()
-				defer writeOutputHistory(db, "A", t.Name())
+				defer WriteOutputHistory(db, []string{"A"}, t.Name())
 				require.Nil(t, err)
 				if tC.now != nil {
 					require.Nil(t, clock.SetNow(*tC.now))
@@ -1615,7 +1615,7 @@ func TestHistory(t *testing.T, oldValue, newValue Value, dbFn func(kvs []*Versio
 			t.Run(fmt.Sprintf("%v: %v", s.fixtures.name, tC.desc), func(t *testing.T) {
 				db, closeFn, err := dbFn(s.fixtures.vKVs())
 				defer closeFn()
-				defer writeOutputHistory(db, "A", t.Name())
+				defer WriteOutputHistory(db, []string{"A"}, t.Name())
 				require.Nil(t, err)
 				ret, err := db.History(tC.key)
 				if tC.expectErrNotFound {
@@ -1648,27 +1648,44 @@ func toJSON(v interface{}) string {
 	return string(out)
 }
 
-func writeOutputHistory(db DB, key, testName string) {
+// TestOutput is the format for saving test data for debugging and visualization.
+type TestOutput struct {
+	TestName  string
+	Histories map[string][]*VersionedKV // key -> history
+}
+
+// WriteOutputHistory writes to a file the final "history" for specified keys at the end of a test. This is used for
+// debugging and visualization.
+func WriteOutputHistory(db DB, keys []string, testName string) {
 	if !outputHistory {
 		return
 	}
+
+	histories := map[string][]*VersionedKV{}
+	for _, key := range keys {
+		kvs, err := db.History(key)
+		if errors.Is(err, ErrNotFound) {
+			kvs = []*VersionedKV{}
+		} else if err != nil {
+			fmt.Printf("failed to get output history for test=%v\n: %v", testName, err)
+			return
+		}
+		histories[key] = kvs
+	}
+	o := TestOutput{
+		TestName:  testName,
+		Histories: histories,
+	}
+	kvsJSON := toJSON(o)
+
 	// format test name for file friendliness
 	reg, err := regexp.Compile("[^a-zA-Z0-9]+")
 	if err != nil {
 		log.Fatal(err)
 	}
-	testName = reg.ReplaceAllString(testName, "_")
-
-	kvs, err := db.History(key)
-	if errors.Is(err, ErrNotFound) {
-		kvs = []*VersionedKV{}
-	} else if err != nil {
-		fmt.Printf("failed to get output history for test=%v\n: %v", testName, err)
-		return
-	}
-	kvsJSON := toJSON(kvs)
+	fileName := reg.ReplaceAllString(testName, "_")
 	_ = os.Mkdir(outputDir, 0777)
-	err = os.WriteFile(fmt.Sprintf("%s/%s.json", outputDir, testName), []byte(kvsJSON), 0644)
+	err = os.WriteFile(fmt.Sprintf("%s/%s.json", outputDir, fileName), []byte(kvsJSON), 0644)
 	if err != nil {
 		fmt.Printf("failed to write output history for test=%v\n: %v", testName, err)
 		return
diff --git a/memory/_testoutput/TestDelete_empty_db_delete_with_no_match_is_nop.json b/memory/_testoutput/TestDelete_empty_db_delete_with_no_match_is_nop.json
index 0637a08..6dac0f2 100644
--- a/memory/_testoutput/TestDelete_empty_db_delete_with_no_match_is_nop.json
+++ b/memory/_testoutput/TestDelete_empty_db_delete_with_no_match_is_nop.json
@@ -1 +1,6 @@
-[]
\ No newline at end of file
+{
+  "TestName": "TestDelete/empty_db:_delete_with_no_match_is_nop",
+  "Histories": {
+    "A": []
+  }
+}
\ No newline at end of file
diff --git a/memory/_testoutput/TestDelete_existing_entries_multiple_valid_time_ranges_active_set_overlaps_multiple_versions.json b/memory/_testoutput/TestDelete_existing_entries_multiple_valid_time_ranges_active_set_overlaps_multiple_versions.json
index 35b23ab..5bc2a73 100644
--- a/memory/_testoutput/TestDelete_existing_entries_multiple_valid_time_ranges_active_set_overlaps_multiple_versions.json
+++ b/memory/_testoutput/TestDelete_existing_entries_multiple_valid_time_ranges_active_set_overlaps_multiple_versions.json
@@ -1,42 +1,47 @@
-[
-  {
-    "Key": "A",
-    "Value": "NEW",
-    "TxTimeStart": "2022-01-04T00:00:00Z",
-    "TxTimeEnd": null,
-    "ValidTimeStart": "2022-01-04T00:00:00Z",
-    "ValidTimeEnd": null
-  },
-  {
-    "Key": "A",
-    "Value": "OLD",
-    "TxTimeStart": "2022-01-04T00:00:00Z",
-    "TxTimeEnd": null,
-    "ValidTimeStart": "2022-01-01T00:00:00Z",
-    "ValidTimeEnd": "2022-01-02T00:00:00Z"
-  },
-  {
-    "Key": "A",
-    "Value": "NEW",
-    "TxTimeStart": "2022-01-03T00:00:00Z",
-    "TxTimeEnd": "2022-01-04T00:00:00Z",
-    "ValidTimeStart": "2022-01-03T00:00:00Z",
-    "ValidTimeEnd": null
-  },
-  {
-    "Key": "A",
-    "Value": "OLD",
-    "TxTimeStart": "2022-01-03T00:00:00Z",
-    "TxTimeEnd": "2022-01-04T00:00:00Z",
-    "ValidTimeStart": "2022-01-01T00:00:00Z",
-    "ValidTimeEnd": "2022-01-03T00:00:00Z"
-  },
-  {
-    "Key": "A",
-    "Value": "OLD",
-    "TxTimeStart": "2022-01-01T00:00:00Z",
-    "TxTimeEnd": "2022-01-03T00:00:00Z",
-    "ValidTimeStart": "2022-01-01T00:00:00Z",
-    "ValidTimeEnd": null
+{
+  "TestName": "TestDelete/existing_entries._multiple_valid_time_ranges_active:_set_overlaps_multiple_versions",
+  "Histories": {
+    "A": [
+      {
+        "Key": "A",
+        "Value": "NEW",
+        "TxTimeStart": "2022-01-04T00:00:00Z",
+        "TxTimeEnd": null,
+        "ValidTimeStart": "2022-01-04T00:00:00Z",
+        "ValidTimeEnd": null
+      },
+      {
+        "Key": "A",
+        "Value": "OLD",
+        "TxTimeStart": "2022-01-04T00:00:00Z",
+        "TxTimeEnd": null,
+        "ValidTimeStart": "2022-01-01T00:00:00Z",
+        "ValidTimeEnd": "2022-01-02T00:00:00Z"
+      },
+      {
+        "Key": "A",
+        "Value": "NEW",
+        "TxTimeStart": "2022-01-03T00:00:00Z",
+        "TxTimeEnd": "2022-01-04T00:00:00Z",
+        "ValidTimeStart": "2022-01-03T00:00:00Z",
+        "ValidTimeEnd": null
+      },
+      {
+        "Key": "A",
+        "Value": "OLD",
+        "TxTimeStart": "2022-01-03T00:00:00Z",
+        "TxTimeEnd": "2022-01-04T00:00:00Z",
+        "ValidTimeStart": "2022-01-01T00:00:00Z",
+        "ValidTimeEnd": "2022-01-03T00:00:00Z"
+      },
+      {
+        "Key": "A",
+        "Value": "OLD",
+        "TxTimeStart": "2022-01-01T00:00:00Z",
+        "TxTimeEnd": "2022-01-03T00:00:00Z",
+        "ValidTimeStart": "2022-01-01T00:00:00Z",
+        "ValidTimeEnd": null
+      }
+    ]
   }
-]
\ No newline at end of file
+}
\ No newline at end of file
diff --git a/memory/_testoutput/TestDelete_existing_entry_no_valid_end_basic_delete.json b/memory/_testoutput/TestDelete_existing_entry_no_valid_end_basic_delete.json
index 55fc216..66ac307 100644
--- a/memory/_testoutput/TestDelete_existing_entry_no_valid_end_basic_delete.json
+++ b/memory/_testoutput/TestDelete_existing_entry_no_valid_end_basic_delete.json
@@ -1,18 +1,23 @@
-[
-  {
-    "Key": "A",
-    "Value": "OLD",
-    "TxTimeStart": "2022-01-03T00:00:00Z",
-    "TxTimeEnd": null,
-    "ValidTimeStart": "2022-01-01T00:00:00Z",
-    "ValidTimeEnd": "2022-01-03T00:00:00Z"
-  },
-  {
-    "Key": "A",
-    "Value": "OLD",
-    "TxTimeStart": "2022-01-01T00:00:00Z",
-    "TxTimeEnd": "2022-01-03T00:00:00Z",
-    "ValidTimeStart": "2022-01-01T00:00:00Z",
-    "ValidTimeEnd": null
+{
+  "TestName": "TestDelete/existing_entry_-_no_valid_end:_basic_delete",
+  "Histories": {
+    "A": [
+      {
+        "Key": "A",
+        "Value": "OLD",
+        "TxTimeStart": "2022-01-03T00:00:00Z",
+        "TxTimeEnd": null,
+        "ValidTimeStart": "2022-01-01T00:00:00Z",
+        "ValidTimeEnd": "2022-01-03T00:00:00Z"
+      },
+      {
+        "Key": "A",
+        "Value": "OLD",
+        "TxTimeStart": "2022-01-01T00:00:00Z",
+        "TxTimeEnd": "2022-01-03T00:00:00Z",
+        "ValidTimeStart": "2022-01-01T00:00:00Z",
+        "ValidTimeEnd": null
+      }
+    ]
   }
-]
\ No newline at end of file
+}
\ No newline at end of file
diff --git a/memory/_testoutput/TestDelete_existing_entry_no_valid_end_error_if_end_valid_time_before_valid_time.json b/memory/_testoutput/TestDelete_existing_entry_no_valid_end_error_if_end_valid_time_before_valid_time.json
index e59d780..0a54189 100644
--- a/memory/_testoutput/TestDelete_existing_entry_no_valid_end_error_if_end_valid_time_before_valid_time.json
+++ b/memory/_testoutput/TestDelete_existing_entry_no_valid_end_error_if_end_valid_time_before_valid_time.json
@@ -1,10 +1,15 @@
-[
-  {
-    "Key": "A",
-    "Value": "OLD",
-    "TxTimeStart": "2022-01-01T00:00:00Z",
-    "TxTimeEnd": null,
-    "ValidTimeStart": "2022-01-01T00:00:00Z",
-    "ValidTimeEnd": null
+{
+  "TestName": "TestDelete/existing_entry_-_no_valid_end:_error_if_end_valid_time_before_valid_time",
+  "Histories": {
+    "A": [
+      {
+        "Key": "A",
+        "Value": "OLD",
+        "TxTimeStart": "2022-01-01T00:00:00Z",
+        "TxTimeEnd": null,
+        "ValidTimeStart": "2022-01-01T00:00:00Z",
+        "ValidTimeEnd": null
+      }
+    ]
   }
-]
\ No newline at end of file
+}
\ No newline at end of file
diff --git a/memory/_testoutput/TestDelete_existing_entry_no_valid_end_error_if_end_valid_time_before_valid_time_default_valid_time_.json b/memory/_testoutput/TestDelete_existing_entry_no_valid_end_error_if_end_valid_time_before_valid_time_default_valid_time_.json
index e59d780..561db7e 100644
--- a/memory/_testoutput/TestDelete_existing_entry_no_valid_end_error_if_end_valid_time_before_valid_time_default_valid_time_.json
+++ b/memory/_testoutput/TestDelete_existing_entry_no_valid_end_error_if_end_valid_time_before_valid_time_default_valid_time_.json
@@ -1,10 +1,15 @@
-[
-  {
-    "Key": "A",
-    "Value": "OLD",
-    "TxTimeStart": "2022-01-01T00:00:00Z",
-    "TxTimeEnd": null,
-    "ValidTimeStart": "2022-01-01T00:00:00Z",
-    "ValidTimeEnd": null
+{
+  "TestName": "TestDelete/existing_entry_-_no_valid_end:_error_if_end_valid_time_before_valid_time_(default_valid_time)",
+  "Histories": {
+    "A": [
+      {
+        "Key": "A",
+        "Value": "OLD",
+        "TxTimeStart": "2022-01-01T00:00:00Z",
+        "TxTimeEnd": null,
+        "ValidTimeStart": "2022-01-01T00:00:00Z",
+        "ValidTimeEnd": null
+      }
+    ]
   }
-]
\ No newline at end of file
+}
\ No newline at end of file
diff --git a/memory/_testoutput/TestDelete_existing_entry_no_valid_end_error_if_end_valid_time_equal_to_valid_time.json b/memory/_testoutput/TestDelete_existing_entry_no_valid_end_error_if_end_valid_time_equal_to_valid_time.json
index e59d780..98fa628 100644
--- a/memory/_testoutput/TestDelete_existing_entry_no_valid_end_error_if_end_valid_time_equal_to_valid_time.json
+++ b/memory/_testoutput/TestDelete_existing_entry_no_valid_end_error_if_end_valid_time_equal_to_valid_time.json
@@ -1,10 +1,15 @@
-[
-  {
-    "Key": "A",
-    "Value": "OLD",
-    "TxTimeStart": "2022-01-01T00:00:00Z",
-    "TxTimeEnd": null,
-    "ValidTimeStart": "2022-01-01T00:00:00Z",
-    "ValidTimeEnd": null
+{
+  "TestName": "TestDelete/existing_entry_-_no_valid_end:_error_if_end_valid_time_equal_to_valid_time",
+  "Histories": {
+    "A": [
+      {
+        "Key": "A",
+        "Value": "OLD",
+        "TxTimeStart": "2022-01-01T00:00:00Z",
+        "TxTimeEnd": null,
+        "ValidTimeStart": "2022-01-01T00:00:00Z",
+        "ValidTimeEnd": null
+      }
+    ]
   }
-]
\ No newline at end of file
+}
\ No newline at end of file
diff --git a/memory/_testoutput/TestDelete_existing_entry_no_valid_end_set_w_valid_time_end_no_overhang.json b/memory/_testoutput/TestDelete_existing_entry_no_valid_end_set_w_valid_time_end_no_overhang.json
index ca20ac1..eaba47c 100644
--- a/memory/_testoutput/TestDelete_existing_entry_no_valid_end_set_w_valid_time_end_no_overhang.json
+++ b/memory/_testoutput/TestDelete_existing_entry_no_valid_end_set_w_valid_time_end_no_overhang.json
@@ -1,10 +1,15 @@
-[
-  {
-    "Key": "A",
-    "Value": "OLD",
-    "TxTimeStart": "2022-01-01T00:00:00Z",
-    "TxTimeEnd": "2022-01-04T00:00:00Z",
-    "ValidTimeStart": "2022-01-01T00:00:00Z",
-    "ValidTimeEnd": null
+{
+  "TestName": "TestDelete/existing_entry_-_no_valid_end:_set_w/_valid_time_end._no_overhang",
+  "Histories": {
+    "A": [
+      {
+        "Key": "A",
+        "Value": "OLD",
+        "TxTimeStart": "2022-01-01T00:00:00Z",
+        "TxTimeEnd": "2022-01-04T00:00:00Z",
+        "ValidTimeStart": "2022-01-01T00:00:00Z",
+        "ValidTimeEnd": null
+      }
+    ]
   }
-]
\ No newline at end of file
+}
\ No newline at end of file
diff --git a/memory/_testoutput/TestDelete_existing_entry_no_valid_end_set_w_valid_time_end_original_record_overhands_on_both_sides.json b/memory/_testoutput/TestDelete_existing_entry_no_valid_end_set_w_valid_time_end_original_record_overhands_on_both_sides.json
index 5328fc0..ee9833a 100644
--- a/memory/_testoutput/TestDelete_existing_entry_no_valid_end_set_w_valid_time_end_original_record_overhands_on_both_sides.json
+++ b/memory/_testoutput/TestDelete_existing_entry_no_valid_end_set_w_valid_time_end_original_record_overhands_on_both_sides.json
@@ -1,26 +1,31 @@
-[
-  {
-    "Key": "A",
-    "Value": "OLD",
-    "TxTimeStart": "2022-01-04T00:00:00Z",
-    "TxTimeEnd": null,
-    "ValidTimeStart": "2022-01-03T00:00:00Z",
-    "ValidTimeEnd": null
-  },
-  {
-    "Key": "A",
-    "Value": "OLD",
-    "TxTimeStart": "2022-01-04T00:00:00Z",
-    "TxTimeEnd": null,
-    "ValidTimeStart": "2022-01-01T00:00:00Z",
-    "ValidTimeEnd": "2022-01-02T00:00:00Z"
-  },
-  {
-    "Key": "A",
-    "Value": "OLD",
-    "TxTimeStart": "2022-01-01T00:00:00Z",
-    "TxTimeEnd": "2022-01-04T00:00:00Z",
-    "ValidTimeStart": "2022-01-01T00:00:00Z",
-    "ValidTimeEnd": null
+{
+  "TestName": "TestDelete/existing_entry_-_no_valid_end:_set_w/_valid_time_end._original_record_overhands_on_both_sides",
+  "Histories": {
+    "A": [
+      {
+        "Key": "A",
+        "Value": "OLD",
+        "TxTimeStart": "2022-01-04T00:00:00Z",
+        "TxTimeEnd": null,
+        "ValidTimeStart": "2022-01-03T00:00:00Z",
+        "ValidTimeEnd": null
+      },
+      {
+        "Key": "A",
+        "Value": "OLD",
+        "TxTimeStart": "2022-01-04T00:00:00Z",
+        "TxTimeEnd": null,
+        "ValidTimeStart": "2022-01-01T00:00:00Z",
+        "ValidTimeEnd": "2022-01-02T00:00:00Z"
+      },
+      {
+        "Key": "A",
+        "Value": "OLD",
+        "TxTimeStart": "2022-01-01T00:00:00Z",
+        "TxTimeEnd": "2022-01-04T00:00:00Z",
+        "ValidTimeStart": "2022-01-01T00:00:00Z",
+        "ValidTimeEnd": null
+      }
+    ]
   }
-]
\ No newline at end of file
+}
\ No newline at end of file
diff --git a/memory/_testoutput/TestGet_empty_db_not_found.json b/memory/_testoutput/TestGet_empty_db_not_found.json
index 0637a08..813fd04 100644
--- a/memory/_testoutput/TestGet_empty_db_not_found.json
+++ b/memory/_testoutput/TestGet_empty_db_not_found.json
@@ -1 +1,6 @@
-[]
\ No newline at end of file
+{
+  "TestName": "TestGet/empty_db:_not_found",
+  "Histories": {
+    "A": []
+  }
+}
\ No newline at end of file
diff --git a/memory/_testoutput/TestGet_initial_set_and_then_deletion_with_later_valid_time_as_of_tx_time_before_update_as_of_valid_time_before_update.json b/memory/_testoutput/TestGet_initial_set_and_then_deletion_with_later_valid_time_as_of_tx_time_before_update_as_of_valid_time_before_update.json
index 55fc216..6056a1f 100644
--- a/memory/_testoutput/TestGet_initial_set_and_then_deletion_with_later_valid_time_as_of_tx_time_before_update_as_of_valid_time_before_update.json
+++ b/memory/_testoutput/TestGet_initial_set_and_then_deletion_with_later_valid_time_as_of_tx_time_before_update_as_of_valid_time_before_update.json
@@ -1,18 +1,23 @@
-[
-  {
-    "Key": "A",
-    "Value": "OLD",
-    "TxTimeStart": "2022-01-03T00:00:00Z",
-    "TxTimeEnd": null,
-    "ValidTimeStart": "2022-01-01T00:00:00Z",
-    "ValidTimeEnd": "2022-01-03T00:00:00Z"
-  },
-  {
-    "Key": "A",
-    "Value": "OLD",
-    "TxTimeStart": "2022-01-01T00:00:00Z",
-    "TxTimeEnd": "2022-01-03T00:00:00Z",
-    "ValidTimeStart": "2022-01-01T00:00:00Z",
-    "ValidTimeEnd": null
+{
+  "TestName": "TestGet/initial_set,_and_then_deletion_with_later_valid_time:_as_of_tx_time_before_update,_as_of_valid_time_before_update",
+  "Histories": {
+    "A": [
+      {
+        "Key": "A",
+        "Value": "OLD",
+        "TxTimeStart": "2022-01-03T00:00:00Z",
+        "TxTimeEnd": null,
+        "ValidTimeStart": "2022-01-01T00:00:00Z",
+        "ValidTimeEnd": "2022-01-03T00:00:00Z"
+      },
+      {
+        "Key": "A",
+        "Value": "OLD",
+        "TxTimeStart": "2022-01-01T00:00:00Z",
+        "TxTimeEnd": "2022-01-03T00:00:00Z",
+        "ValidTimeStart": "2022-01-01T00:00:00Z",
+        "ValidTimeEnd": null
+      }
+    ]
   }
-]
\ No newline at end of file
+}
\ No newline at end of file
diff --git a/memory/_testoutput/TestGet_initial_set_and_then_deletion_with_later_valid_time_as_of_tx_time_before_update_as_of_valid_time_now.json b/memory/_testoutput/TestGet_initial_set_and_then_deletion_with_later_valid_time_as_of_tx_time_before_update_as_of_valid_time_now.json
index 55fc216..412ff33 100644
--- a/memory/_testoutput/TestGet_initial_set_and_then_deletion_with_later_valid_time_as_of_tx_time_before_update_as_of_valid_time_now.json
+++ b/memory/_testoutput/TestGet_initial_set_and_then_deletion_with_later_valid_time_as_of_tx_time_before_update_as_of_valid_time_now.json
@@ -1,18 +1,23 @@
-[
-  {
-    "Key": "A",
-    "Value": "OLD",
-    "TxTimeStart": "2022-01-03T00:00:00Z",
-    "TxTimeEnd": null,
-    "ValidTimeStart": "2022-01-01T00:00:00Z",
-    "ValidTimeEnd": "2022-01-03T00:00:00Z"
-  },
-  {
-    "Key": "A",
-    "Value": "OLD",
-    "TxTimeStart": "2022-01-01T00:00:00Z",
-    "TxTimeEnd": "2022-01-03T00:00:00Z",
-    "ValidTimeStart": "2022-01-01T00:00:00Z",
-    "ValidTimeEnd": null
+{
+  "TestName": "TestGet/initial_set,_and_then_deletion_with_later_valid_time:_as_of_tx_time_before_update,_as_of_valid_time_now",
+  "Histories": {
+    "A": [
+      {
+        "Key": "A",
+        "Value": "OLD",
+        "TxTimeStart": "2022-01-03T00:00:00Z",
+        "TxTimeEnd": null,
+        "ValidTimeStart": "2022-01-01T00:00:00Z",
+        "ValidTimeEnd": "2022-01-03T00:00:00Z"
+      },
+      {
+        "Key": "A",
+        "Value": "OLD",
+        "TxTimeStart": "2022-01-01T00:00:00Z",
+        "TxTimeEnd": "2022-01-03T00:00:00Z",
+        "ValidTimeStart": "2022-01-01T00:00:00Z",
+        "ValidTimeEnd": null
+      }
+    ]
   }
-]
\ No newline at end of file
+}
\ No newline at end of file
diff --git a/memory/_testoutput/TestGet_initial_set_and_then_deletion_with_later_valid_time_as_of_tx_time_now_as_of_valid_time_before_update.json b/memory/_testoutput/TestGet_initial_set_and_then_deletion_with_later_valid_time_as_of_tx_time_now_as_of_valid_time_before_update.json
index 55fc216..da9643b 100644
--- a/memory/_testoutput/TestGet_initial_set_and_then_deletion_with_later_valid_time_as_of_tx_time_now_as_of_valid_time_before_update.json
+++ b/memory/_testoutput/TestGet_initial_set_and_then_deletion_with_later_valid_time_as_of_tx_time_now_as_of_valid_time_before_update.json
@@ -1,18 +1,23 @@
-[
-  {
-    "Key": "A",
-    "Value": "OLD",
-    "TxTimeStart": "2022-01-03T00:00:00Z",
-    "TxTimeEnd": null,
-    "ValidTimeStart": "2022-01-01T00:00:00Z",
-    "ValidTimeEnd": "2022-01-03T00:00:00Z"
-  },
-  {
-    "Key": "A",
-    "Value": "OLD",
-    "TxTimeStart": "2022-01-01T00:00:00Z",
-    "TxTimeEnd": "2022-01-03T00:00:00Z",
-    "ValidTimeStart": "2022-01-01T00:00:00Z",
-    "ValidTimeEnd": null
+{
+  "TestName": "TestGet/initial_set,_and_then_deletion_with_later_valid_time:_as_of_tx_time_now,_as_of_valid_time_before_update",
+  "Histories": {
+    "A": [
+      {
+        "Key": "A",
+        "Value": "OLD",
+        "TxTimeStart": "2022-01-03T00:00:00Z",
+        "TxTimeEnd": null,
+        "ValidTimeStart": "2022-01-01T00:00:00Z",
+        "ValidTimeEnd": "2022-01-03T00:00:00Z"
+      },
+      {
+        "Key": "A",
+        "Value": "OLD",
+        "TxTimeStart": "2022-01-01T00:00:00Z",
+        "TxTimeEnd": "2022-01-03T00:00:00Z",
+        "ValidTimeStart": "2022-01-01T00:00:00Z",
+        "ValidTimeEnd": null
+      }
+    ]
   }
-]
\ No newline at end of file
+}
\ No newline at end of file
diff --git a/memory/_testoutput/TestGet_initial_set_and_then_deletion_with_later_valid_time_not_found_default_as_of_times.json b/memory/_testoutput/TestGet_initial_set_and_then_deletion_with_later_valid_time_not_found_default_as_of_times.json
index 55fc216..4ae43a0 100644
--- a/memory/_testoutput/TestGet_initial_set_and_then_deletion_with_later_valid_time_not_found_default_as_of_times.json
+++ b/memory/_testoutput/TestGet_initial_set_and_then_deletion_with_later_valid_time_not_found_default_as_of_times.json
@@ -1,18 +1,23 @@
-[
-  {
-    "Key": "A",
-    "Value": "OLD",
-    "TxTimeStart": "2022-01-03T00:00:00Z",
-    "TxTimeEnd": null,
-    "ValidTimeStart": "2022-01-01T00:00:00Z",
-    "ValidTimeEnd": "2022-01-03T00:00:00Z"
-  },
-  {
-    "Key": "A",
-    "Value": "OLD",
-    "TxTimeStart": "2022-01-01T00:00:00Z",
-    "TxTimeEnd": "2022-01-03T00:00:00Z",
-    "ValidTimeStart": "2022-01-01T00:00:00Z",
-    "ValidTimeEnd": null
+{
+  "TestName": "TestGet/initial_set,_and_then_deletion_with_later_valid_time:_not_found_-_default_as_of_times",
+  "Histories": {
+    "A": [
+      {
+        "Key": "A",
+        "Value": "OLD",
+        "TxTimeStart": "2022-01-03T00:00:00Z",
+        "TxTimeEnd": null,
+        "ValidTimeStart": "2022-01-01T00:00:00Z",
+        "ValidTimeEnd": "2022-01-03T00:00:00Z"
+      },
+      {
+        "Key": "A",
+        "Value": "OLD",
+        "TxTimeStart": "2022-01-01T00:00:00Z",
+        "TxTimeEnd": "2022-01-03T00:00:00Z",
+        "ValidTimeStart": "2022-01-01T00:00:00Z",
+        "ValidTimeEnd": null
+      }
+    ]
   }
-]
\ No newline at end of file
+}
\ No newline at end of file
diff --git a/memory/_testoutput/TestGet_initial_set_and_then_set_with_later_valid_time_as_of_tx_time_before_update_as_of_valid_time_before_update.json b/memory/_testoutput/TestGet_initial_set_and_then_set_with_later_valid_time_as_of_tx_time_before_update_as_of_valid_time_before_update.json
index 1cb2beb..1381acd 100644
--- a/memory/_testoutput/TestGet_initial_set_and_then_set_with_later_valid_time_as_of_tx_time_before_update_as_of_valid_time_before_update.json
+++ b/memory/_testoutput/TestGet_initial_set_and_then_set_with_later_valid_time_as_of_tx_time_before_update_as_of_valid_time_before_update.json
@@ -1,26 +1,31 @@
-[
-  {
-    "Key": "A",
-    "Value": "NEW",
-    "TxTimeStart": "2022-01-03T00:00:00Z",
-    "TxTimeEnd": null,
-    "ValidTimeStart": "2022-01-03T00:00:00Z",
-    "ValidTimeEnd": null
-  },
-  {
-    "Key": "A",
-    "Value": "OLD",
-    "TxTimeStart": "2022-01-03T00:00:00Z",
-    "TxTimeEnd": null,
-    "ValidTimeStart": "2022-01-01T00:00:00Z",
-    "ValidTimeEnd": "2022-01-03T00:00:00Z"
-  },
-  {
-    "Key": "A",
-    "Value": "OLD",
-    "TxTimeStart": "2022-01-01T00:00:00Z",
-    "TxTimeEnd": "2022-01-03T00:00:00Z",
-    "ValidTimeStart": "2022-01-01T00:00:00Z",
-    "ValidTimeEnd": null
+{
+  "TestName": "TestGet/initial_set,_and_then_set_with_later_valid_time:_as_of_tx_time_before_update,_as_of_valid_time_before_update",
+  "Histories": {
+    "A": [
+      {
+        "Key": "A",
+        "Value": "NEW",
+        "TxTimeStart": "2022-01-03T00:00:00Z",
+        "TxTimeEnd": null,
+        "ValidTimeStart": "2022-01-03T00:00:00Z",
+        "ValidTimeEnd": null
+      },
+      {
+        "Key": "A",
+        "Value": "OLD",
+        "TxTimeStart": "2022-01-03T00:00:00Z",
+        "TxTimeEnd": null,
+        "ValidTimeStart": "2022-01-01T00:00:00Z",
+        "ValidTimeEnd": "2022-01-03T00:00:00Z"
+      },
+      {
+        "Key": "A",
+        "Value": "OLD",
+        "TxTimeStart": "2022-01-01T00:00:00Z",
+        "TxTimeEnd": "2022-01-03T00:00:00Z",
+        "ValidTimeStart": "2022-01-01T00:00:00Z",
+        "ValidTimeEnd": null
+      }
+    ]
   }
-]
\ No newline at end of file
+}
\ No newline at end of file
diff --git a/memory/_testoutput/TestGet_initial_set_and_then_set_with_later_valid_time_as_of_tx_time_before_update_as_of_valid_time_now.json b/memory/_testoutput/TestGet_initial_set_and_then_set_with_later_valid_time_as_of_tx_time_before_update_as_of_valid_time_now.json
index 1cb2beb..f6b0538 100644
--- a/memory/_testoutput/TestGet_initial_set_and_then_set_with_later_valid_time_as_of_tx_time_before_update_as_of_valid_time_now.json
+++ b/memory/_testoutput/TestGet_initial_set_and_then_set_with_later_valid_time_as_of_tx_time_before_update_as_of_valid_time_now.json
@@ -1,26 +1,31 @@
-[
-  {
-    "Key": "A",
-    "Value": "NEW",
-    "TxTimeStart": "2022-01-03T00:00:00Z",
-    "TxTimeEnd": null,
-    "ValidTimeStart": "2022-01-03T00:00:00Z",
-    "ValidTimeEnd": null
-  },
-  {
-    "Key": "A",
-    "Value": "OLD",
-    "TxTimeStart": "2022-01-03T00:00:00Z",
-    "TxTimeEnd": null,
-    "ValidTimeStart": "2022-01-01T00:00:00Z",
-    "ValidTimeEnd": "2022-01-03T00:00:00Z"
-  },
-  {
-    "Key": "A",
-    "Value": "OLD",
-    "TxTimeStart": "2022-01-01T00:00:00Z",
-    "TxTimeEnd": "2022-01-03T00:00:00Z",
-    "ValidTimeStart": "2022-01-01T00:00:00Z",
-    "ValidTimeEnd": null
+{
+  "TestName": "TestGet/initial_set,_and_then_set_with_later_valid_time:_as_of_tx_time_before_update,_as_of_valid_time_now",
+  "Histories": {
+    "A": [
+      {
+        "Key": "A",
+        "Value": "NEW",
+        "TxTimeStart": "2022-01-03T00:00:00Z",
+        "TxTimeEnd": null,
+        "ValidTimeStart": "2022-01-03T00:00:00Z",
+        "ValidTimeEnd": null
+      },
+      {
+        "Key": "A",
+        "Value": "OLD",
+        "TxTimeStart": "2022-01-03T00:00:00Z",
+        "TxTimeEnd": null,
+        "ValidTimeStart": "2022-01-01T00:00:00Z",
+        "ValidTimeEnd": "2022-01-03T00:00:00Z"
+      },
+      {
+        "Key": "A",
+        "Value": "OLD",
+        "TxTimeStart": "2022-01-01T00:00:00Z",
+        "TxTimeEnd": "2022-01-03T00:00:00Z",
+        "ValidTimeStart": "2022-01-01T00:00:00Z",
+        "ValidTimeEnd": null
+      }
+    ]
   }
-]
\ No newline at end of file
+}
\ No newline at end of file
diff --git a/memory/_testoutput/TestGet_initial_set_and_then_set_with_later_valid_time_as_of_tx_time_now_as_of_valid_time_before_update.json b/memory/_testoutput/TestGet_initial_set_and_then_set_with_later_valid_time_as_of_tx_time_now_as_of_valid_time_before_update.json
index 1cb2beb..831c9b4 100644
--- a/memory/_testoutput/TestGet_initial_set_and_then_set_with_later_valid_time_as_of_tx_time_now_as_of_valid_time_before_update.json
+++ b/memory/_testoutput/TestGet_initial_set_and_then_set_with_later_valid_time_as_of_tx_time_now_as_of_valid_time_before_update.json
@@ -1,26 +1,31 @@
-[
-  {
-    "Key": "A",
-    "Value": "NEW",
-    "TxTimeStart": "2022-01-03T00:00:00Z",
-    "TxTimeEnd": null,
-    "ValidTimeStart": "2022-01-03T00:00:00Z",
-    "ValidTimeEnd": null
-  },
-  {
-    "Key": "A",
-    "Value": "OLD",
-    "TxTimeStart": "2022-01-03T00:00:00Z",
-    "TxTimeEnd": null,
-    "ValidTimeStart": "2022-01-01T00:00:00Z",
-    "ValidTimeEnd": "2022-01-03T00:00:00Z"
-  },
-  {
-    "Key": "A",
-    "Value": "OLD",
-    "TxTimeStart": "2022-01-01T00:00:00Z",
-    "TxTimeEnd": "2022-01-03T00:00:00Z",
-    "ValidTimeStart": "2022-01-01T00:00:00Z",
-    "ValidTimeEnd": null
+{
+  "TestName": "TestGet/initial_set,_and_then_set_with_later_valid_time:_as_of_tx_time_now,_as_of_valid_time_before_update",
+  "Histories": {
+    "A": [
+      {
+        "Key": "A",
+        "Value": "NEW",
+        "TxTimeStart": "2022-01-03T00:00:00Z",
+        "TxTimeEnd": null,
+        "ValidTimeStart": "2022-01-03T00:00:00Z",
+        "ValidTimeEnd": null
+      },
+      {
+        "Key": "A",
+        "Value": "OLD",
+        "TxTimeStart": "2022-01-03T00:00:00Z",
+        "TxTimeEnd": null,
+        "ValidTimeStart": "2022-01-01T00:00:00Z",
+        "ValidTimeEnd": "2022-01-03T00:00:00Z"
+      },
+      {
+        "Key": "A",
+        "Value": "OLD",
+        "TxTimeStart": "2022-01-01T00:00:00Z",
+        "TxTimeEnd": "2022-01-03T00:00:00Z",
+        "ValidTimeStart": "2022-01-01T00:00:00Z",
+        "ValidTimeEnd": null
+      }
+    ]
   }
-]
\ No newline at end of file
+}
\ No newline at end of file
diff --git a/memory/_testoutput/TestGet_initial_set_and_then_set_with_later_valid_time_found_default_as_of_times.json b/memory/_testoutput/TestGet_initial_set_and_then_set_with_later_valid_time_found_default_as_of_times.json
index 1cb2beb..e373702 100644
--- a/memory/_testoutput/TestGet_initial_set_and_then_set_with_later_valid_time_found_default_as_of_times.json
+++ b/memory/_testoutput/TestGet_initial_set_and_then_set_with_later_valid_time_found_default_as_of_times.json
@@ -1,26 +1,31 @@
-[
-  {
-    "Key": "A",
-    "Value": "NEW",
-    "TxTimeStart": "2022-01-03T00:00:00Z",
-    "TxTimeEnd": null,
-    "ValidTimeStart": "2022-01-03T00:00:00Z",
-    "ValidTimeEnd": null
-  },
-  {
-    "Key": "A",
-    "Value": "OLD",
-    "TxTimeStart": "2022-01-03T00:00:00Z",
-    "TxTimeEnd": null,
-    "ValidTimeStart": "2022-01-01T00:00:00Z",
-    "ValidTimeEnd": "2022-01-03T00:00:00Z"
-  },
-  {
-    "Key": "A",
-    "Value": "OLD",
-    "TxTimeStart": "2022-01-01T00:00:00Z",
-    "TxTimeEnd": "2022-01-03T00:00:00Z",
-    "ValidTimeStart": "2022-01-01T00:00:00Z",
-    "ValidTimeEnd": null
+{
+  "TestName": "TestGet/initial_set,_and_then_set_with_later_valid_time:_found_-_default_as_of_times",
+  "Histories": {
+    "A": [
+      {
+        "Key": "A",
+        "Value": "NEW",
+        "TxTimeStart": "2022-01-03T00:00:00Z",
+        "TxTimeEnd": null,
+        "ValidTimeStart": "2022-01-03T00:00:00Z",
+        "ValidTimeEnd": null
+      },
+      {
+        "Key": "A",
+        "Value": "OLD",
+        "TxTimeStart": "2022-01-03T00:00:00Z",
+        "TxTimeEnd": null,
+        "ValidTimeStart": "2022-01-01T00:00:00Z",
+        "ValidTimeEnd": "2022-01-03T00:00:00Z"
+      },
+      {
+        "Key": "A",
+        "Value": "OLD",
+        "TxTimeStart": "2022-01-01T00:00:00Z",
+        "TxTimeEnd": "2022-01-03T00:00:00Z",
+        "ValidTimeStart": "2022-01-01T00:00:00Z",
+        "ValidTimeEnd": null
+      }
+    ]
   }
-]
\ No newline at end of file
+}
\ No newline at end of file
diff --git a/memory/_testoutput/TestGet_single_set_no_end_found_as_of_tx_time_T_in_range.json b/memory/_testoutput/TestGet_single_set_no_end_found_as_of_tx_time_T_in_range.json
index e59d780..149c612 100644
--- a/memory/_testoutput/TestGet_single_set_no_end_found_as_of_tx_time_T_in_range.json
+++ b/memory/_testoutput/TestGet_single_set_no_end_found_as_of_tx_time_T_in_range.json
@@ -1,10 +1,15 @@
-[
-  {
-    "Key": "A",
-    "Value": "OLD",
-    "TxTimeStart": "2022-01-01T00:00:00Z",
-    "TxTimeEnd": null,
-    "ValidTimeStart": "2022-01-01T00:00:00Z",
-    "ValidTimeEnd": null
+{
+  "TestName": "TestGet/single_set,_no_end:_found_-_as_of_tx_time_T_in_range",
+  "Histories": {
+    "A": [
+      {
+        "Key": "A",
+        "Value": "OLD",
+        "TxTimeStart": "2022-01-01T00:00:00Z",
+        "TxTimeEnd": null,
+        "ValidTimeStart": "2022-01-01T00:00:00Z",
+        "ValidTimeEnd": null
+      }
+    ]
   }
-]
\ No newline at end of file
+}
\ No newline at end of file
diff --git a/memory/_testoutput/TestGet_single_set_no_end_found_as_of_tx_time_T_in_range_inclusive_.json b/memory/_testoutput/TestGet_single_set_no_end_found_as_of_tx_time_T_in_range_inclusive_.json
index e59d780..6a68021 100644
--- a/memory/_testoutput/TestGet_single_set_no_end_found_as_of_tx_time_T_in_range_inclusive_.json
+++ b/memory/_testoutput/TestGet_single_set_no_end_found_as_of_tx_time_T_in_range_inclusive_.json
@@ -1,10 +1,15 @@
-[
-  {
-    "Key": "A",
-    "Value": "OLD",
-    "TxTimeStart": "2022-01-01T00:00:00Z",
-    "TxTimeEnd": null,
-    "ValidTimeStart": "2022-01-01T00:00:00Z",
-    "ValidTimeEnd": null
+{
+  "TestName": "TestGet/single_set,_no_end:_found_-_as_of_tx_time_T_in_range_(inclusive)",
+  "Histories": {
+    "A": [
+      {
+        "Key": "A",
+        "Value": "OLD",
+        "TxTimeStart": "2022-01-01T00:00:00Z",
+        "TxTimeEnd": null,
+        "ValidTimeStart": "2022-01-01T00:00:00Z",
+        "ValidTimeEnd": null
+      }
+    ]
   }
-]
\ No newline at end of file
+}
\ No newline at end of file
diff --git a/memory/_testoutput/TestGet_single_set_no_end_found_as_of_valid_time_T_in_range.json b/memory/_testoutput/TestGet_single_set_no_end_found_as_of_valid_time_T_in_range.json
index e59d780..065d425 100644
--- a/memory/_testoutput/TestGet_single_set_no_end_found_as_of_valid_time_T_in_range.json
+++ b/memory/_testoutput/TestGet_single_set_no_end_found_as_of_valid_time_T_in_range.json
@@ -1,10 +1,15 @@
-[
-  {
-    "Key": "A",
-    "Value": "OLD",
-    "TxTimeStart": "2022-01-01T00:00:00Z",
-    "TxTimeEnd": null,
-    "ValidTimeStart": "2022-01-01T00:00:00Z",
-    "ValidTimeEnd": null
+{
+  "TestName": "TestGet/single_set,_no_end:_found_-_as_of_valid_time_T_in_range",
+  "Histories": {
+    "A": [
+      {
+        "Key": "A",
+        "Value": "OLD",
+        "TxTimeStart": "2022-01-01T00:00:00Z",
+        "TxTimeEnd": null,
+        "ValidTimeStart": "2022-01-01T00:00:00Z",
+        "ValidTimeEnd": null
+      }
+    ]
   }
-]
\ No newline at end of file
+}
\ No newline at end of file
diff --git a/memory/_testoutput/TestGet_single_set_no_end_found_as_of_valid_time_T_in_range_inclusive_.json b/memory/_testoutput/TestGet_single_set_no_end_found_as_of_valid_time_T_in_range_inclusive_.json
index e59d780..4f84111 100644
--- a/memory/_testoutput/TestGet_single_set_no_end_found_as_of_valid_time_T_in_range_inclusive_.json
+++ b/memory/_testoutput/TestGet_single_set_no_end_found_as_of_valid_time_T_in_range_inclusive_.json
@@ -1,10 +1,15 @@
-[
-  {
-    "Key": "A",
-    "Value": "OLD",
-    "TxTimeStart": "2022-01-01T00:00:00Z",
-    "TxTimeEnd": null,
-    "ValidTimeStart": "2022-01-01T00:00:00Z",
-    "ValidTimeEnd": null
+{
+  "TestName": "TestGet/single_set,_no_end:_found_-_as_of_valid_time_T_in_range_(inclusive)",
+  "Histories": {
+    "A": [
+      {
+        "Key": "A",
+        "Value": "OLD",
+        "TxTimeStart": "2022-01-01T00:00:00Z",
+        "TxTimeEnd": null,
+        "ValidTimeStart": "2022-01-01T00:00:00Z",
+        "ValidTimeEnd": null
+      }
+    ]
   }
-]
\ No newline at end of file
+}
\ No newline at end of file
diff --git a/memory/_testoutput/TestGet_single_set_no_end_found_default_as_of_times.json b/memory/_testoutput/TestGet_single_set_no_end_found_default_as_of_times.json
index e59d780..3d216ae 100644
--- a/memory/_testoutput/TestGet_single_set_no_end_found_default_as_of_times.json
+++ b/memory/_testoutput/TestGet_single_set_no_end_found_default_as_of_times.json
@@ -1,10 +1,15 @@
-[
-  {
-    "Key": "A",
-    "Value": "OLD",
-    "TxTimeStart": "2022-01-01T00:00:00Z",
-    "TxTimeEnd": null,
-    "ValidTimeStart": "2022-01-01T00:00:00Z",
-    "ValidTimeEnd": null
+{
+  "TestName": "TestGet/single_set,_no_end:_found_-_default_as_of_times",
+  "Histories": {
+    "A": [
+      {
+        "Key": "A",
+        "Value": "OLD",
+        "TxTimeStart": "2022-01-01T00:00:00Z",
+        "TxTimeEnd": null,
+        "ValidTimeStart": "2022-01-01T00:00:00Z",
+        "ValidTimeEnd": null
+      }
+    ]
   }
-]
\ No newline at end of file
+}
\ No newline at end of file
diff --git a/memory/_testoutput/TestGet_single_set_no_end_not_found_as_of_tx_time_T_before_tx_time_start.json b/memory/_testoutput/TestGet_single_set_no_end_not_found_as_of_tx_time_T_before_tx_time_start.json
index e59d780..b145622 100644
--- a/memory/_testoutput/TestGet_single_set_no_end_not_found_as_of_tx_time_T_before_tx_time_start.json
+++ b/memory/_testoutput/TestGet_single_set_no_end_not_found_as_of_tx_time_T_before_tx_time_start.json
@@ -1,10 +1,15 @@
-[
-  {
-    "Key": "A",
-    "Value": "OLD",
-    "TxTimeStart": "2022-01-01T00:00:00Z",
-    "TxTimeEnd": null,
-    "ValidTimeStart": "2022-01-01T00:00:00Z",
-    "ValidTimeEnd": null
+{
+  "TestName": "TestGet/single_set,_no_end:_not_found_-_as_of_tx_time_T_before_tx_time_start",
+  "Histories": {
+    "A": [
+      {
+        "Key": "A",
+        "Value": "OLD",
+        "TxTimeStart": "2022-01-01T00:00:00Z",
+        "TxTimeEnd": null,
+        "ValidTimeStart": "2022-01-01T00:00:00Z",
+        "ValidTimeEnd": null
+      }
+    ]
   }
-]
\ No newline at end of file
+}
\ No newline at end of file
diff --git a/memory/_testoutput/TestGet_single_set_no_end_not_found_as_of_valid_time_T_before_valid_time_start.json b/memory/_testoutput/TestGet_single_set_no_end_not_found_as_of_valid_time_T_before_valid_time_start.json
index e59d780..f1b301c 100644
--- a/memory/_testoutput/TestGet_single_set_no_end_not_found_as_of_valid_time_T_before_valid_time_start.json
+++ b/memory/_testoutput/TestGet_single_set_no_end_not_found_as_of_valid_time_T_before_valid_time_start.json
@@ -1,10 +1,15 @@
-[
-  {
-    "Key": "A",
-    "Value": "OLD",
-    "TxTimeStart": "2022-01-01T00:00:00Z",
-    "TxTimeEnd": null,
-    "ValidTimeStart": "2022-01-01T00:00:00Z",
-    "ValidTimeEnd": null
+{
+  "TestName": "TestGet/single_set,_no_end:_not_found_-_as_of_valid_time_T_before_valid_time_start",
+  "Histories": {
+    "A": [
+      {
+        "Key": "A",
+        "Value": "OLD",
+        "TxTimeStart": "2022-01-01T00:00:00Z",
+        "TxTimeEnd": null,
+        "ValidTimeStart": "2022-01-01T00:00:00Z",
+        "ValidTimeEnd": null
+      }
+    ]
   }
-]
\ No newline at end of file
+}
\ No newline at end of file
diff --git a/memory/_testoutput/TestGet_single_set_with_end_found_as_of_valid_and_tx_time_T_in_range.json b/memory/_testoutput/TestGet_single_set_with_end_found_as_of_valid_and_tx_time_T_in_range.json
index 62917d9..30c225e 100644
--- a/memory/_testoutput/TestGet_single_set_with_end_found_as_of_valid_and_tx_time_T_in_range.json
+++ b/memory/_testoutput/TestGet_single_set_with_end_found_as_of_valid_and_tx_time_T_in_range.json
@@ -1,10 +1,15 @@
-[
-  {
-    "Key": "A",
-    "Value": "OLD",
-    "TxTimeStart": "2022-01-01T00:00:00Z",
-    "TxTimeEnd": null,
-    "ValidTimeStart": "2022-01-01T00:00:00Z",
-    "ValidTimeEnd": "2022-01-03T00:00:00Z"
+{
+  "TestName": "TestGet/single_set,_with_end:_found_-_as_of_valid_and_tx_time_T_in_range",
+  "Histories": {
+    "A": [
+      {
+        "Key": "A",
+        "Value": "OLD",
+        "TxTimeStart": "2022-01-01T00:00:00Z",
+        "TxTimeEnd": null,
+        "ValidTimeStart": "2022-01-01T00:00:00Z",
+        "ValidTimeEnd": "2022-01-03T00:00:00Z"
+      }
+    ]
   }
-]
\ No newline at end of file
+}
\ No newline at end of file
diff --git a/memory/_testoutput/TestGet_single_set_with_end_not_found_as_of_valid_time_T_after_valid_time_end.json b/memory/_testoutput/TestGet_single_set_with_end_not_found_as_of_valid_time_T_after_valid_time_end.json
index 62917d9..f24f0c5 100644
--- a/memory/_testoutput/TestGet_single_set_with_end_not_found_as_of_valid_time_T_after_valid_time_end.json
+++ b/memory/_testoutput/TestGet_single_set_with_end_not_found_as_of_valid_time_T_after_valid_time_end.json
@@ -1,10 +1,15 @@
-[
-  {
-    "Key": "A",
-    "Value": "OLD",
-    "TxTimeStart": "2022-01-01T00:00:00Z",
-    "TxTimeEnd": null,
-    "ValidTimeStart": "2022-01-01T00:00:00Z",
-    "ValidTimeEnd": "2022-01-03T00:00:00Z"
+{
+  "TestName": "TestGet/single_set,_with_end:_not_found_-_as_of_valid_time_T_after_valid_time_end",
+  "Histories": {
+    "A": [
+      {
+        "Key": "A",
+        "Value": "OLD",
+        "TxTimeStart": "2022-01-01T00:00:00Z",
+        "TxTimeEnd": null,
+        "ValidTimeStart": "2022-01-01T00:00:00Z",
+        "ValidTimeEnd": "2022-01-03T00:00:00Z"
+      }
+    ]
   }
-]
\ No newline at end of file
+}
\ No newline at end of file
diff --git a/memory/_testoutput/TestGet_single_set_with_end_not_found_as_of_valid_time_T_equal_to_valid_time_end_exclusive_.json b/memory/_testoutput/TestGet_single_set_with_end_not_found_as_of_valid_time_T_equal_to_valid_time_end_exclusive_.json
index 62917d9..a1a1b34 100644
--- a/memory/_testoutput/TestGet_single_set_with_end_not_found_as_of_valid_time_T_equal_to_valid_time_end_exclusive_.json
+++ b/memory/_testoutput/TestGet_single_set_with_end_not_found_as_of_valid_time_T_equal_to_valid_time_end_exclusive_.json
@@ -1,10 +1,15 @@
-[
-  {
-    "Key": "A",
-    "Value": "OLD",
-    "TxTimeStart": "2022-01-01T00:00:00Z",
-    "TxTimeEnd": null,
-    "ValidTimeStart": "2022-01-01T00:00:00Z",
-    "ValidTimeEnd": "2022-01-03T00:00:00Z"
+{
+  "TestName": "TestGet/single_set,_with_end:_not_found_-_as_of_valid_time_T_equal_to_valid_time_end_(exclusive)",
+  "Histories": {
+    "A": [
+      {
+        "Key": "A",
+        "Value": "OLD",
+        "TxTimeStart": "2022-01-01T00:00:00Z",
+        "TxTimeEnd": null,
+        "ValidTimeStart": "2022-01-01T00:00:00Z",
+        "ValidTimeEnd": "2022-01-03T00:00:00Z"
+      }
+    ]
   }
-]
\ No newline at end of file
+}
\ No newline at end of file
diff --git a/memory/_testoutput/TestGet_single_set_with_end_not_found_default_as_of_times.json b/memory/_testoutput/TestGet_single_set_with_end_not_found_default_as_of_times.json
index 62917d9..ce349b7 100644
--- a/memory/_testoutput/TestGet_single_set_with_end_not_found_default_as_of_times.json
+++ b/memory/_testoutput/TestGet_single_set_with_end_not_found_default_as_of_times.json
@@ -1,10 +1,15 @@
-[
-  {
-    "Key": "A",
-    "Value": "OLD",
-    "TxTimeStart": "2022-01-01T00:00:00Z",
-    "TxTimeEnd": null,
-    "ValidTimeStart": "2022-01-01T00:00:00Z",
-    "ValidTimeEnd": "2022-01-03T00:00:00Z"
+{
+  "TestName": "TestGet/single_set,_with_end:_not_found_-_default_as_of_times",
+  "Histories": {
+    "A": [
+      {
+        "Key": "A",
+        "Value": "OLD",
+        "TxTimeStart": "2022-01-01T00:00:00Z",
+        "TxTimeEnd": null,
+        "ValidTimeStart": "2022-01-01T00:00:00Z",
+        "ValidTimeEnd": "2022-01-03T00:00:00Z"
+      }
+    ]
   }
-]
\ No newline at end of file
+}
\ No newline at end of file
diff --git a/memory/_testoutput/TestHistory_empty_db_not_found.json b/memory/_testoutput/TestHistory_empty_db_not_found.json
index 0637a08..06e09f0 100644
--- a/memory/_testoutput/TestHistory_empty_db_not_found.json
+++ b/memory/_testoutput/TestHistory_empty_db_not_found.json
@@ -1 +1,6 @@
-[]
\ No newline at end of file
+{
+  "TestName": "TestHistory/empty_db:_not_found",
+  "Histories": {
+    "A": []
+  }
+}
\ No newline at end of file
diff --git a/memory/_testoutput/TestHistory_initial_set_and_then_deletion_with_later_valid_time_returns_deleted_versions.json b/memory/_testoutput/TestHistory_initial_set_and_then_deletion_with_later_valid_time_returns_deleted_versions.json
index 55fc216..ad716ff 100644
--- a/memory/_testoutput/TestHistory_initial_set_and_then_deletion_with_later_valid_time_returns_deleted_versions.json
+++ b/memory/_testoutput/TestHistory_initial_set_and_then_deletion_with_later_valid_time_returns_deleted_versions.json
@@ -1,18 +1,23 @@
-[
-  {
-    "Key": "A",
-    "Value": "OLD",
-    "TxTimeStart": "2022-01-03T00:00:00Z",
-    "TxTimeEnd": null,
-    "ValidTimeStart": "2022-01-01T00:00:00Z",
-    "ValidTimeEnd": "2022-01-03T00:00:00Z"
-  },
-  {
-    "Key": "A",
-    "Value": "OLD",
-    "TxTimeStart": "2022-01-01T00:00:00Z",
-    "TxTimeEnd": "2022-01-03T00:00:00Z",
-    "ValidTimeStart": "2022-01-01T00:00:00Z",
-    "ValidTimeEnd": null
+{
+  "TestName": "TestHistory/initial_set,_and_then_deletion_with_later_valid_time:_returns_\"deleted\"_versions",
+  "Histories": {
+    "A": [
+      {
+        "Key": "A",
+        "Value": "OLD",
+        "TxTimeStart": "2022-01-03T00:00:00Z",
+        "TxTimeEnd": null,
+        "ValidTimeStart": "2022-01-01T00:00:00Z",
+        "ValidTimeEnd": "2022-01-03T00:00:00Z"
+      },
+      {
+        "Key": "A",
+        "Value": "OLD",
+        "TxTimeStart": "2022-01-01T00:00:00Z",
+        "TxTimeEnd": "2022-01-03T00:00:00Z",
+        "ValidTimeStart": "2022-01-01T00:00:00Z",
+        "ValidTimeEnd": null
+      }
+    ]
   }
-]
\ No newline at end of file
+}
\ No newline at end of file
diff --git a/memory/_testoutput/TestHistory_initial_set_and_then_set_with_later_valid_time_return_versions_by_descending_end_transaction_time_descending_end_valid_time.json b/memory/_testoutput/TestHistory_initial_set_and_then_set_with_later_valid_time_return_versions_by_descending_end_transaction_time_descending_end_valid_time.json
index 1cb2beb..f88dc1a 100644
--- a/memory/_testoutput/TestHistory_initial_set_and_then_set_with_later_valid_time_return_versions_by_descending_end_transaction_time_descending_end_valid_time.json
+++ b/memory/_testoutput/TestHistory_initial_set_and_then_set_with_later_valid_time_return_versions_by_descending_end_transaction_time_descending_end_valid_time.json
@@ -1,26 +1,31 @@
-[
-  {
-    "Key": "A",
-    "Value": "NEW",
-    "TxTimeStart": "2022-01-03T00:00:00Z",
-    "TxTimeEnd": null,
-    "ValidTimeStart": "2022-01-03T00:00:00Z",
-    "ValidTimeEnd": null
-  },
-  {
-    "Key": "A",
-    "Value": "OLD",
-    "TxTimeStart": "2022-01-03T00:00:00Z",
-    "TxTimeEnd": null,
-    "ValidTimeStart": "2022-01-01T00:00:00Z",
-    "ValidTimeEnd": "2022-01-03T00:00:00Z"
-  },
-  {
-    "Key": "A",
-    "Value": "OLD",
-    "TxTimeStart": "2022-01-01T00:00:00Z",
-    "TxTimeEnd": "2022-01-03T00:00:00Z",
-    "ValidTimeStart": "2022-01-01T00:00:00Z",
-    "ValidTimeEnd": null
+{
+  "TestName": "TestHistory/initial_set,_and_then_set_with_later_valid_time:_return_versions_by_descending_end_transaction_time,_descending_end_valid_time",
+  "Histories": {
+    "A": [
+      {
+        "Key": "A",
+        "Value": "NEW",
+        "TxTimeStart": "2022-01-03T00:00:00Z",
+        "TxTimeEnd": null,
+        "ValidTimeStart": "2022-01-03T00:00:00Z",
+        "ValidTimeEnd": null
+      },
+      {
+        "Key": "A",
+        "Value": "OLD",
+        "TxTimeStart": "2022-01-03T00:00:00Z",
+        "TxTimeEnd": null,
+        "ValidTimeStart": "2022-01-01T00:00:00Z",
+        "ValidTimeEnd": "2022-01-03T00:00:00Z"
+      },
+      {
+        "Key": "A",
+        "Value": "OLD",
+        "TxTimeStart": "2022-01-01T00:00:00Z",
+        "TxTimeEnd": "2022-01-03T00:00:00Z",
+        "ValidTimeStart": "2022-01-01T00:00:00Z",
+        "ValidTimeEnd": null
+      }
+    ]
   }
-]
\ No newline at end of file
+}
\ No newline at end of file
diff --git a/memory/_testoutput/TestHistory_multiple_versions_have_nil_end_transaction_time_return_versions_by_descending_end_transaction_time_descending_end_valid_time.json b/memory/_testoutput/TestHistory_multiple_versions_have_nil_end_transaction_time_return_versions_by_descending_end_transaction_time_descending_end_valid_time.json
index 7298354..b9edd5d 100644
--- a/memory/_testoutput/TestHistory_multiple_versions_have_nil_end_transaction_time_return_versions_by_descending_end_transaction_time_descending_end_valid_time.json
+++ b/memory/_testoutput/TestHistory_multiple_versions_have_nil_end_transaction_time_return_versions_by_descending_end_transaction_time_descending_end_valid_time.json
@@ -1,18 +1,23 @@
-[
-  {
-    "Key": "A",
-    "Value": "OLD",
-    "TxTimeStart": "2022-01-02T00:00:00Z",
-    "TxTimeEnd": null,
-    "ValidTimeStart": "2022-01-03T00:00:00Z",
-    "ValidTimeEnd": "2022-01-04T00:00:00Z"
-  },
-  {
-    "Key": "A",
-    "Value": "NEW",
-    "TxTimeStart": "2022-01-01T00:00:00Z",
-    "TxTimeEnd": null,
-    "ValidTimeStart": "2022-01-01T00:00:00Z",
-    "ValidTimeEnd": "2022-01-02T00:00:00Z"
+{
+  "TestName": "TestHistory/multiple_versions_have_nil_end_transaction_time:_return_versions_by_descending_end_transaction_time,_descending_end_valid_time",
+  "Histories": {
+    "A": [
+      {
+        "Key": "A",
+        "Value": "OLD",
+        "TxTimeStart": "2022-01-02T00:00:00Z",
+        "TxTimeEnd": null,
+        "ValidTimeStart": "2022-01-03T00:00:00Z",
+        "ValidTimeEnd": "2022-01-04T00:00:00Z"
+      },
+      {
+        "Key": "A",
+        "Value": "NEW",
+        "TxTimeStart": "2022-01-01T00:00:00Z",
+        "TxTimeEnd": null,
+        "ValidTimeStart": "2022-01-01T00:00:00Z",
+        "ValidTimeEnd": "2022-01-02T00:00:00Z"
+      }
+    ]
   }
-]
\ No newline at end of file
+}
\ No newline at end of file
diff --git a/memory/_testoutput/TestHistory_single_set_no_end_basic_return_1_version.json b/memory/_testoutput/TestHistory_single_set_no_end_basic_return_1_version.json
index e59d780..cfac65b 100644
--- a/memory/_testoutput/TestHistory_single_set_no_end_basic_return_1_version.json
+++ b/memory/_testoutput/TestHistory_single_set_no_end_basic_return_1_version.json
@@ -1,10 +1,15 @@
-[
-  {
-    "Key": "A",
-    "Value": "OLD",
-    "TxTimeStart": "2022-01-01T00:00:00Z",
-    "TxTimeEnd": null,
-    "ValidTimeStart": "2022-01-01T00:00:00Z",
-    "ValidTimeEnd": null
+{
+  "TestName": "TestHistory/single_set,_no_end:_basic_-_return_1_version",
+  "Histories": {
+    "A": [
+      {
+        "Key": "A",
+        "Value": "OLD",
+        "TxTimeStart": "2022-01-01T00:00:00Z",
+        "TxTimeEnd": null,
+        "ValidTimeStart": "2022-01-01T00:00:00Z",
+        "ValidTimeEnd": null
+      }
+    ]
   }
-]
\ No newline at end of file
+}
\ No newline at end of file
diff --git a/memory/_testoutput/TestHistory_single_set_with_end_basic_return_1_version.json b/memory/_testoutput/TestHistory_single_set_with_end_basic_return_1_version.json
index 62917d9..3dbced1 100644
--- a/memory/_testoutput/TestHistory_single_set_with_end_basic_return_1_version.json
+++ b/memory/_testoutput/TestHistory_single_set_with_end_basic_return_1_version.json
@@ -1,10 +1,15 @@
-[
-  {
-    "Key": "A",
-    "Value": "OLD",
-    "TxTimeStart": "2022-01-01T00:00:00Z",
-    "TxTimeEnd": null,
-    "ValidTimeStart": "2022-01-01T00:00:00Z",
-    "ValidTimeEnd": "2022-01-03T00:00:00Z"
+{
+  "TestName": "TestHistory/single_set,_with_end:_basic_-_return_1_version",
+  "Histories": {
+    "A": [
+      {
+        "Key": "A",
+        "Value": "OLD",
+        "TxTimeStart": "2022-01-01T00:00:00Z",
+        "TxTimeEnd": null,
+        "ValidTimeStart": "2022-01-01T00:00:00Z",
+        "ValidTimeEnd": "2022-01-03T00:00:00Z"
+      }
+    ]
   }
-]
\ No newline at end of file
+}
\ No newline at end of file
diff --git a/memory/_testoutput/TestHistory_version_has_later_transaction_time_start_but_earlier_transaction_time_end_return_versions_by_descending_end_transaction_time_descending_end_valid_time.json b/memory/_testoutput/TestHistory_version_has_later_transaction_time_start_but_earlier_transaction_time_end_return_versions_by_descending_end_transaction_time_descending_end_valid_time.json
index d728ef1..cf7043c 100644
--- a/memory/_testoutput/TestHistory_version_has_later_transaction_time_start_but_earlier_transaction_time_end_return_versions_by_descending_end_transaction_time_descending_end_valid_time.json
+++ b/memory/_testoutput/TestHistory_version_has_later_transaction_time_start_but_earlier_transaction_time_end_return_versions_by_descending_end_transaction_time_descending_end_valid_time.json
@@ -1,18 +1,23 @@
-[
-  {
-    "Key": "A",
-    "Value": "NEW",
-    "TxTimeStart": "2022-01-01T00:00:00Z",
-    "TxTimeEnd": null,
-    "ValidTimeStart": "2022-01-01T00:00:00Z",
-    "ValidTimeEnd": "2022-01-02T00:00:00Z"
-  },
-  {
-    "Key": "A",
-    "Value": "OLD",
-    "TxTimeStart": "2022-01-02T00:00:00Z",
-    "TxTimeEnd": "2022-01-03T00:00:00Z",
-    "ValidTimeStart": "2022-01-03T00:00:00Z",
-    "ValidTimeEnd": "2022-01-04T00:00:00Z"
+{
+  "TestName": "TestHistory/version_has_later_transaction_time_start,_but_earlier_transaction_time_end:_return_versions_by_descending_end_transaction_time,_descending_end_valid_time",
+  "Histories": {
+    "A": [
+      {
+        "Key": "A",
+        "Value": "NEW",
+        "TxTimeStart": "2022-01-01T00:00:00Z",
+        "TxTimeEnd": null,
+        "ValidTimeStart": "2022-01-01T00:00:00Z",
+        "ValidTimeEnd": "2022-01-02T00:00:00Z"
+      },
+      {
+        "Key": "A",
+        "Value": "OLD",
+        "TxTimeStart": "2022-01-02T00:00:00Z",
+        "TxTimeEnd": "2022-01-03T00:00:00Z",
+        "ValidTimeStart": "2022-01-03T00:00:00Z",
+        "ValidTimeEnd": "2022-01-04T00:00:00Z"
+      }
+    ]
   }
-]
\ No newline at end of file
+}
\ No newline at end of file
diff --git a/memory/_testoutput/TestList_A_B_values_found_as_of_valid_time.json b/memory/_testoutput/TestList_A_B_values_found_as_of_valid_time.json
index e59d780..2a59ec8 100644
--- a/memory/_testoutput/TestList_A_B_values_found_as_of_valid_time.json
+++ b/memory/_testoutput/TestList_A_B_values_found_as_of_valid_time.json
@@ -1,10 +1,15 @@
-[
-  {
-    "Key": "A",
-    "Value": "OLD",
-    "TxTimeStart": "2022-01-01T00:00:00Z",
-    "TxTimeEnd": null,
-    "ValidTimeStart": "2022-01-01T00:00:00Z",
-    "ValidTimeEnd": null
+{
+  "TestName": "TestList/A,_B_values:_found_-_as_of_valid_time",
+  "Histories": {
+    "A": [
+      {
+        "Key": "A",
+        "Value": "OLD",
+        "TxTimeStart": "2022-01-01T00:00:00Z",
+        "TxTimeEnd": null,
+        "ValidTimeStart": "2022-01-01T00:00:00Z",
+        "ValidTimeEnd": null
+      }
+    ]
   }
-]
\ No newline at end of file
+}
\ No newline at end of file
diff --git a/memory/_testoutput/TestList_A_B_values_found_default_as_of_times.json b/memory/_testoutput/TestList_A_B_values_found_default_as_of_times.json
index e59d780..510fb2c 100644
--- a/memory/_testoutput/TestList_A_B_values_found_default_as_of_times.json
+++ b/memory/_testoutput/TestList_A_B_values_found_default_as_of_times.json
@@ -1,10 +1,15 @@
-[
-  {
-    "Key": "A",
-    "Value": "OLD",
-    "TxTimeStart": "2022-01-01T00:00:00Z",
-    "TxTimeEnd": null,
-    "ValidTimeStart": "2022-01-01T00:00:00Z",
-    "ValidTimeEnd": null
+{
+  "TestName": "TestList/A,_B_values:_found_-_default_as_of_times",
+  "Histories": {
+    "A": [
+      {
+        "Key": "A",
+        "Value": "OLD",
+        "TxTimeStart": "2022-01-01T00:00:00Z",
+        "TxTimeEnd": null,
+        "ValidTimeStart": "2022-01-01T00:00:00Z",
+        "ValidTimeEnd": null
+      }
+    ]
   }
-]
\ No newline at end of file
+}
\ No newline at end of file
diff --git a/memory/_testoutput/TestList_A_B_values_not_found_as_of_transaction_time.json b/memory/_testoutput/TestList_A_B_values_not_found_as_of_transaction_time.json
index e59d780..486a5e4 100644
--- a/memory/_testoutput/TestList_A_B_values_not_found_as_of_transaction_time.json
+++ b/memory/_testoutput/TestList_A_B_values_not_found_as_of_transaction_time.json
@@ -1,10 +1,15 @@
-[
-  {
-    "Key": "A",
-    "Value": "OLD",
-    "TxTimeStart": "2022-01-01T00:00:00Z",
-    "TxTimeEnd": null,
-    "ValidTimeStart": "2022-01-01T00:00:00Z",
-    "ValidTimeEnd": null
+{
+  "TestName": "TestList/A,_B_values:_not_found_-_as_of_transaction_time",
+  "Histories": {
+    "A": [
+      {
+        "Key": "A",
+        "Value": "OLD",
+        "TxTimeStart": "2022-01-01T00:00:00Z",
+        "TxTimeEnd": null,
+        "ValidTimeStart": "2022-01-01T00:00:00Z",
+        "ValidTimeEnd": null
+      }
+    ]
   }
-]
\ No newline at end of file
+}
\ No newline at end of file
diff --git a/memory/_testoutput/TestList_A_values_found_default_as_of_times.json b/memory/_testoutput/TestList_A_values_found_default_as_of_times.json
index e59d780..e3c3ada 100644
--- a/memory/_testoutput/TestList_A_values_found_default_as_of_times.json
+++ b/memory/_testoutput/TestList_A_values_found_default_as_of_times.json
@@ -1,10 +1,15 @@
-[
-  {
-    "Key": "A",
-    "Value": "OLD",
-    "TxTimeStart": "2022-01-01T00:00:00Z",
-    "TxTimeEnd": null,
-    "ValidTimeStart": "2022-01-01T00:00:00Z",
-    "ValidTimeEnd": null
+{
+  "TestName": "TestList/A_values:_found_-_default_as_of_times",
+  "Histories": {
+    "A": [
+      {
+        "Key": "A",
+        "Value": "OLD",
+        "TxTimeStart": "2022-01-01T00:00:00Z",
+        "TxTimeEnd": null,
+        "ValidTimeStart": "2022-01-01T00:00:00Z",
+        "ValidTimeEnd": null
+      }
+    ]
   }
-]
\ No newline at end of file
+}
\ No newline at end of file
diff --git a/memory/_testoutput/TestList_empty_db_not_found.json b/memory/_testoutput/TestList_empty_db_not_found.json
index 0637a08..e47cc89 100644
--- a/memory/_testoutput/TestList_empty_db_not_found.json
+++ b/memory/_testoutput/TestList_empty_db_not_found.json
@@ -1 +1,6 @@
-[]
\ No newline at end of file
+{
+  "TestName": "TestList/empty_db:_not_found",
+  "Histories": {
+    "A": []
+  }
+}
\ No newline at end of file
diff --git a/memory/_testoutput/TestRobinhoodExample.json b/memory/_testoutput/TestRobinhoodExample.json
new file mode 100644
index 0000000..3bf93b9
--- /dev/null
+++ b/memory/_testoutput/TestRobinhoodExample.json
@@ -0,0 +1,51 @@
+{
+  "TestName": "TestRobinhoodExample",
+  "Histories": {
+    "user-1": [
+      {
+        "Key": "user-1",
+        "Value": {
+          "cash-balance": 90,
+          "description": "Price Improvement"
+        },
+        "TxTimeStart": "2021-03-21T00:00:00Z",
+        "TxTimeEnd": null,
+        "ValidTimeStart": "2021-03-20T00:00:00Z",
+        "ValidTimeEnd": null
+      },
+      {
+        "Key": "user-1",
+        "Value": {
+          "cash-balance": 75,
+          "description": "Stock Purchase"
+        },
+        "TxTimeStart": "2021-03-20T00:00:00Z",
+        "TxTimeEnd": "2021-03-21T00:00:00Z",
+        "ValidTimeStart": "2021-03-20T00:00:00Z",
+        "ValidTimeEnd": null
+      },
+      {
+        "Key": "user-1",
+        "Value": {
+          "cash-balance": 100,
+          "description": "Deposit"
+        },
+        "TxTimeStart": "2021-03-20T00:00:00Z",
+        "TxTimeEnd": null,
+        "ValidTimeStart": "2021-03-14T00:00:00Z",
+        "ValidTimeEnd": "2021-03-20T00:00:00Z"
+      },
+      {
+        "Key": "user-1",
+        "Value": {
+          "cash-balance": 100,
+          "description": "Deposit"
+        },
+        "TxTimeStart": "2021-03-14T00:00:00Z",
+        "TxTimeEnd": "2021-03-20T00:00:00Z",
+        "ValidTimeStart": "2021-03-14T00:00:00Z",
+        "ValidTimeEnd": null
+      }
+    ]
+  }
+}
\ No newline at end of file
diff --git a/memory/_testoutput/TestSet_empty_db_basic_set.json b/memory/_testoutput/TestSet_empty_db_basic_set.json
index 0d0690e..88bbff1 100644
--- a/memory/_testoutput/TestSet_empty_db_basic_set.json
+++ b/memory/_testoutput/TestSet_empty_db_basic_set.json
@@ -1,10 +1,15 @@
-[
-  {
-    "Key": "A",
-    "Value": "Old",
-    "TxTimeStart": "2022-01-01T00:00:00Z",
-    "TxTimeEnd": null,
-    "ValidTimeStart": "2022-01-01T00:00:00Z",
-    "ValidTimeEnd": null
+{
+  "TestName": "TestSet/empty_db:_basic_set",
+  "Histories": {
+    "A": [
+      {
+        "Key": "A",
+        "Value": "Old",
+        "TxTimeStart": "2022-01-01T00:00:00Z",
+        "TxTimeEnd": null,
+        "ValidTimeStart": "2022-01-01T00:00:00Z",
+        "ValidTimeEnd": null
+      }
+    ]
   }
-]
\ No newline at end of file
+}
\ No newline at end of file
diff --git a/memory/_testoutput/TestSet_empty_db_basic_set_with_valid_time.json b/memory/_testoutput/TestSet_empty_db_basic_set_with_valid_time.json
index 7ca47a1..ca9857b 100644
--- a/memory/_testoutput/TestSet_empty_db_basic_set_with_valid_time.json
+++ b/memory/_testoutput/TestSet_empty_db_basic_set_with_valid_time.json
@@ -1,10 +1,15 @@
-[
-  {
-    "Key": "A",
-    "Value": "Old",
-    "TxTimeStart": "2022-01-01T00:00:00Z",
-    "TxTimeEnd": null,
-    "ValidTimeStart": "2021-12-31T00:00:00Z",
-    "ValidTimeEnd": null
+{
+  "TestName": "TestSet/empty_db:_basic_set_with_valid_time",
+  "Histories": {
+    "A": [
+      {
+        "Key": "A",
+        "Value": "Old",
+        "TxTimeStart": "2022-01-01T00:00:00Z",
+        "TxTimeEnd": null,
+        "ValidTimeStart": "2021-12-31T00:00:00Z",
+        "ValidTimeEnd": null
+      }
+    ]
   }
-]
\ No newline at end of file
+}
\ No newline at end of file
diff --git a/memory/_testoutput/TestSet_empty_db_basic_set_with_valid_time_and_end_valid_time.json b/memory/_testoutput/TestSet_empty_db_basic_set_with_valid_time_and_end_valid_time.json
index ce4abc6..d0022fc 100644
--- a/memory/_testoutput/TestSet_empty_db_basic_set_with_valid_time_and_end_valid_time.json
+++ b/memory/_testoutput/TestSet_empty_db_basic_set_with_valid_time_and_end_valid_time.json
@@ -1,10 +1,15 @@
-[
-  {
-    "Key": "A",
-    "Value": "Old",
-    "TxTimeStart": "2022-01-02T00:00:00Z",
-    "TxTimeEnd": null,
-    "ValidTimeStart": "2021-12-31T00:00:00Z",
-    "ValidTimeEnd": "2022-01-01T00:00:00Z"
+{
+  "TestName": "TestSet/empty_db:_basic_set_with_valid_time_and_end_valid_time",
+  "Histories": {
+    "A": [
+      {
+        "Key": "A",
+        "Value": "Old",
+        "TxTimeStart": "2022-01-02T00:00:00Z",
+        "TxTimeEnd": null,
+        "ValidTimeStart": "2021-12-31T00:00:00Z",
+        "ValidTimeEnd": "2022-01-01T00:00:00Z"
+      }
+    ]
   }
-]
\ No newline at end of file
+}
\ No newline at end of file
diff --git a/memory/_testoutput/TestSet_empty_db_can_set_value_of_nil.json b/memory/_testoutput/TestSet_empty_db_can_set_value_of_nil.json
index c31065e..b205ad1 100644
--- a/memory/_testoutput/TestSet_empty_db_can_set_value_of_nil.json
+++ b/memory/_testoutput/TestSet_empty_db_can_set_value_of_nil.json
@@ -1,10 +1,15 @@
-[
-  {
-    "Key": "A",
-    "Value": null,
-    "TxTimeStart": "2022-01-01T00:00:00Z",
-    "TxTimeEnd": null,
-    "ValidTimeStart": "2022-01-01T00:00:00Z",
-    "ValidTimeEnd": null
+{
+  "TestName": "TestSet/empty_db:_can_set_value_of_nil",
+  "Histories": {
+    "A": [
+      {
+        "Key": "A",
+        "Value": null,
+        "TxTimeStart": "2022-01-01T00:00:00Z",
+        "TxTimeEnd": null,
+        "ValidTimeStart": "2022-01-01T00:00:00Z",
+        "ValidTimeEnd": null
+      }
+    ]
   }
-]
\ No newline at end of file
+}
\ No newline at end of file
diff --git a/memory/_testoutput/TestSet_empty_db_error_if_end_valid_time_before_valid_time.json b/memory/_testoutput/TestSet_empty_db_error_if_end_valid_time_before_valid_time.json
index 0637a08..54fc067 100644
--- a/memory/_testoutput/TestSet_empty_db_error_if_end_valid_time_before_valid_time.json
+++ b/memory/_testoutput/TestSet_empty_db_error_if_end_valid_time_before_valid_time.json
@@ -1 +1,6 @@
-[]
\ No newline at end of file
+{
+  "TestName": "TestSet/empty_db:_error_if_end_valid_time_before_valid_time",
+  "Histories": {
+    "A": []
+  }
+}
\ No newline at end of file
diff --git a/memory/_testoutput/TestSet_empty_db_error_if_end_valid_time_before_valid_time_default_valid_time_.json b/memory/_testoutput/TestSet_empty_db_error_if_end_valid_time_before_valid_time_default_valid_time_.json
index 0637a08..e823460 100644
--- a/memory/_testoutput/TestSet_empty_db_error_if_end_valid_time_before_valid_time_default_valid_time_.json
+++ b/memory/_testoutput/TestSet_empty_db_error_if_end_valid_time_before_valid_time_default_valid_time_.json
@@ -1 +1,6 @@
-[]
\ No newline at end of file
+{
+  "TestName": "TestSet/empty_db:_error_if_end_valid_time_before_valid_time_(default_valid_time)",
+  "Histories": {
+    "A": []
+  }
+}
\ No newline at end of file
diff --git a/memory/_testoutput/TestSet_empty_db_error_if_end_valid_time_equal_to_valid_time.json b/memory/_testoutput/TestSet_empty_db_error_if_end_valid_time_equal_to_valid_time.json
index 0637a08..920eaad 100644
--- a/memory/_testoutput/TestSet_empty_db_error_if_end_valid_time_equal_to_valid_time.json
+++ b/memory/_testoutput/TestSet_empty_db_error_if_end_valid_time_equal_to_valid_time.json
@@ -1 +1,6 @@
-[]
\ No newline at end of file
+{
+  "TestName": "TestSet/empty_db:_error_if_end_valid_time_equal_to_valid_time",
+  "Histories": {
+    "A": []
+  }
+}
\ No newline at end of file
diff --git a/memory/_testoutput/TestSet_empty_db_error_if_end_valid_time_in_the_future.json b/memory/_testoutput/TestSet_empty_db_error_if_end_valid_time_in_the_future.json
index 0637a08..e7ee2cb 100644
--- a/memory/_testoutput/TestSet_empty_db_error_if_end_valid_time_in_the_future.json
+++ b/memory/_testoutput/TestSet_empty_db_error_if_end_valid_time_in_the_future.json
@@ -1 +1,6 @@
-[]
\ No newline at end of file
+{
+  "TestName": "TestSet/empty_db:_error_if_end_valid_time_in_the_future",
+  "Histories": {
+    "A": []
+  }
+}
\ No newline at end of file
diff --git a/memory/_testoutput/TestSet_empty_db_error_if_key_not_set.json b/memory/_testoutput/TestSet_empty_db_error_if_key_not_set.json
index 0637a08..e5be963 100644
--- a/memory/_testoutput/TestSet_empty_db_error_if_key_not_set.json
+++ b/memory/_testoutput/TestSet_empty_db_error_if_key_not_set.json
@@ -1 +1,6 @@
-[]
\ No newline at end of file
+{
+  "TestName": "TestSet/empty_db:_error_if_key_not_set",
+  "Histories": {
+    "A": []
+  }
+}
\ No newline at end of file
diff --git a/memory/_testoutput/TestSet_empty_db_error_if_start_valid_time_in_the_future.json b/memory/_testoutput/TestSet_empty_db_error_if_start_valid_time_in_the_future.json
index 0637a08..d57d8e4 100644
--- a/memory/_testoutput/TestSet_empty_db_error_if_start_valid_time_in_the_future.json
+++ b/memory/_testoutput/TestSet_empty_db_error_if_start_valid_time_in_the_future.json
@@ -1 +1,6 @@
-[]
\ No newline at end of file
+{
+  "TestName": "TestSet/empty_db:_error_if_start_valid_time_in_the_future",
+  "Histories": {
+    "A": []
+  }
+}
\ No newline at end of file
diff --git a/memory/_testoutput/TestSet_existing_entries_multiple_valid_time_ranges_active_set_overlaps_multiple_versions.json b/memory/_testoutput/TestSet_existing_entries_multiple_valid_time_ranges_active_set_overlaps_multiple_versions.json
index 013b62d..7075baf 100644
--- a/memory/_testoutput/TestSet_existing_entries_multiple_valid_time_ranges_active_set_overlaps_multiple_versions.json
+++ b/memory/_testoutput/TestSet_existing_entries_multiple_valid_time_ranges_active_set_overlaps_multiple_versions.json
@@ -1,50 +1,55 @@
-[
-  {
-    "Key": "A",
-    "Value": "New",
-    "TxTimeStart": "2022-01-04T00:00:00Z",
-    "TxTimeEnd": null,
-    "ValidTimeStart": "2022-01-04T00:00:00Z",
-    "ValidTimeEnd": null
-  },
-  {
-    "Key": "A",
-    "Value": "Newest",
-    "TxTimeStart": "2022-01-04T00:00:00Z",
-    "TxTimeEnd": null,
-    "ValidTimeStart": "2022-01-02T00:00:00Z",
-    "ValidTimeEnd": "2022-01-04T00:00:00Z"
-  },
-  {
-    "Key": "A",
-    "Value": "Old",
-    "TxTimeStart": "2022-01-04T00:00:00Z",
-    "TxTimeEnd": null,
-    "ValidTimeStart": "2022-01-01T00:00:00Z",
-    "ValidTimeEnd": "2022-01-02T00:00:00Z"
-  },
-  {
-    "Key": "A",
-    "Value": "New",
-    "TxTimeStart": "2022-01-03T00:00:00Z",
-    "TxTimeEnd": "2022-01-04T00:00:00Z",
-    "ValidTimeStart": "2022-01-03T00:00:00Z",
-    "ValidTimeEnd": null
-  },
-  {
-    "Key": "A",
-    "Value": "Old",
-    "TxTimeStart": "2022-01-03T00:00:00Z",
-    "TxTimeEnd": "2022-01-04T00:00:00Z",
-    "ValidTimeStart": "2022-01-01T00:00:00Z",
-    "ValidTimeEnd": "2022-01-03T00:00:00Z"
-  },
-  {
-    "Key": "A",
-    "Value": "Old",
-    "TxTimeStart": "2022-01-01T00:00:00Z",
-    "TxTimeEnd": "2022-01-03T00:00:00Z",
-    "ValidTimeStart": "2022-01-01T00:00:00Z",
-    "ValidTimeEnd": null
+{
+  "TestName": "TestSet/existing_entries._multiple_valid_time_ranges_active:_set_overlaps_multiple_versions",
+  "Histories": {
+    "A": [
+      {
+        "Key": "A",
+        "Value": "New",
+        "TxTimeStart": "2022-01-04T00:00:00Z",
+        "TxTimeEnd": null,
+        "ValidTimeStart": "2022-01-04T00:00:00Z",
+        "ValidTimeEnd": null
+      },
+      {
+        "Key": "A",
+        "Value": "Newest",
+        "TxTimeStart": "2022-01-04T00:00:00Z",
+        "TxTimeEnd": null,
+        "ValidTimeStart": "2022-01-02T00:00:00Z",
+        "ValidTimeEnd": "2022-01-04T00:00:00Z"
+      },
+      {
+        "Key": "A",
+        "Value": "Old",
+        "TxTimeStart": "2022-01-04T00:00:00Z",
+        "TxTimeEnd": null,
+        "ValidTimeStart": "2022-01-01T00:00:00Z",
+        "ValidTimeEnd": "2022-01-02T00:00:00Z"
+      },
+      {
+        "Key": "A",
+        "Value": "New",
+        "TxTimeStart": "2022-01-03T00:00:00Z",
+        "TxTimeEnd": "2022-01-04T00:00:00Z",
+        "ValidTimeStart": "2022-01-03T00:00:00Z",
+        "ValidTimeEnd": null
+      },
+      {
+        "Key": "A",
+        "Value": "Old",
+        "TxTimeStart": "2022-01-03T00:00:00Z",
+        "TxTimeEnd": "2022-01-04T00:00:00Z",
+        "ValidTimeStart": "2022-01-01T00:00:00Z",
+        "ValidTimeEnd": "2022-01-03T00:00:00Z"
+      },
+      {
+        "Key": "A",
+        "Value": "Old",
+        "TxTimeStart": "2022-01-01T00:00:00Z",
+        "TxTimeEnd": "2022-01-03T00:00:00Z",
+        "ValidTimeStart": "2022-01-01T00:00:00Z",
+        "ValidTimeEnd": null
+      }
+    ]
   }
-]
\ No newline at end of file
+}
\ No newline at end of file
diff --git a/memory/_testoutput/TestSet_existing_entry_no_valid_end_basic_set.json b/memory/_testoutput/TestSet_existing_entry_no_valid_end_basic_set.json
index ae2d77e..cb78274 100644
--- a/memory/_testoutput/TestSet_existing_entry_no_valid_end_basic_set.json
+++ b/memory/_testoutput/TestSet_existing_entry_no_valid_end_basic_set.json
@@ -1,26 +1,31 @@
-[
-  {
-    "Key": "A",
-    "Value": "New",
-    "TxTimeStart": "2022-01-03T00:00:00Z",
-    "TxTimeEnd": null,
-    "ValidTimeStart": "2022-01-03T00:00:00Z",
-    "ValidTimeEnd": null
-  },
-  {
-    "Key": "A",
-    "Value": "Old",
-    "TxTimeStart": "2022-01-03T00:00:00Z",
-    "TxTimeEnd": null,
-    "ValidTimeStart": "2022-01-01T00:00:00Z",
-    "ValidTimeEnd": "2022-01-03T00:00:00Z"
-  },
-  {
-    "Key": "A",
-    "Value": "Old",
-    "TxTimeStart": "2022-01-01T00:00:00Z",
-    "TxTimeEnd": "2022-01-03T00:00:00Z",
-    "ValidTimeStart": "2022-01-01T00:00:00Z",
-    "ValidTimeEnd": null
+{
+  "TestName": "TestSet/existing_entry_-_no_valid_end:_basic_set",
+  "Histories": {
+    "A": [
+      {
+        "Key": "A",
+        "Value": "New",
+        "TxTimeStart": "2022-01-03T00:00:00Z",
+        "TxTimeEnd": null,
+        "ValidTimeStart": "2022-01-03T00:00:00Z",
+        "ValidTimeEnd": null
+      },
+      {
+        "Key": "A",
+        "Value": "Old",
+        "TxTimeStart": "2022-01-03T00:00:00Z",
+        "TxTimeEnd": null,
+        "ValidTimeStart": "2022-01-01T00:00:00Z",
+        "ValidTimeEnd": "2022-01-03T00:00:00Z"
+      },
+      {
+        "Key": "A",
+        "Value": "Old",
+        "TxTimeStart": "2022-01-01T00:00:00Z",
+        "TxTimeEnd": "2022-01-03T00:00:00Z",
+        "ValidTimeStart": "2022-01-01T00:00:00Z",
+        "ValidTimeEnd": null
+      }
+    ]
   }
-]
\ No newline at end of file
+}
\ No newline at end of file
diff --git a/memory/_testoutput/TestSet_existing_entry_no_valid_end_set_w_valid_time_end_no_overhang.json b/memory/_testoutput/TestSet_existing_entry_no_valid_end_set_w_valid_time_end_no_overhang.json
index 3011f7e..fac47f8 100644
--- a/memory/_testoutput/TestSet_existing_entry_no_valid_end_set_w_valid_time_end_no_overhang.json
+++ b/memory/_testoutput/TestSet_existing_entry_no_valid_end_set_w_valid_time_end_no_overhang.json
@@ -1,18 +1,23 @@
-[
-  {
-    "Key": "A",
-    "Value": "New",
-    "TxTimeStart": "2022-01-04T00:00:00Z",
-    "TxTimeEnd": null,
-    "ValidTimeStart": "2022-01-01T00:00:00Z",
-    "ValidTimeEnd": null
-  },
-  {
-    "Key": "A",
-    "Value": "Old",
-    "TxTimeStart": "2022-01-01T00:00:00Z",
-    "TxTimeEnd": "2022-01-04T00:00:00Z",
-    "ValidTimeStart": "2022-01-01T00:00:00Z",
-    "ValidTimeEnd": null
+{
+  "TestName": "TestSet/existing_entry_-_no_valid_end:_set_w/_valid_time_end._no_overhang",
+  "Histories": {
+    "A": [
+      {
+        "Key": "A",
+        "Value": "New",
+        "TxTimeStart": "2022-01-04T00:00:00Z",
+        "TxTimeEnd": null,
+        "ValidTimeStart": "2022-01-01T00:00:00Z",
+        "ValidTimeEnd": null
+      },
+      {
+        "Key": "A",
+        "Value": "Old",
+        "TxTimeStart": "2022-01-01T00:00:00Z",
+        "TxTimeEnd": "2022-01-04T00:00:00Z",
+        "ValidTimeStart": "2022-01-01T00:00:00Z",
+        "ValidTimeEnd": null
+      }
+    ]
   }
-]
\ No newline at end of file
+}
\ No newline at end of file
diff --git a/memory/_testoutput/TestSet_existing_entry_no_valid_end_set_w_valid_time_end_original_record_overhands_on_both_sides.json b/memory/_testoutput/TestSet_existing_entry_no_valid_end_set_w_valid_time_end_original_record_overhands_on_both_sides.json
index 2054c5e..a65003a 100644
--- a/memory/_testoutput/TestSet_existing_entry_no_valid_end_set_w_valid_time_end_original_record_overhands_on_both_sides.json
+++ b/memory/_testoutput/TestSet_existing_entry_no_valid_end_set_w_valid_time_end_original_record_overhands_on_both_sides.json
@@ -1,34 +1,39 @@
-[
-  {
-    "Key": "A",
-    "Value": "Old",
-    "TxTimeStart": "2022-01-04T00:00:00Z",
-    "TxTimeEnd": null,
-    "ValidTimeStart": "2022-01-03T00:00:00Z",
-    "ValidTimeEnd": null
-  },
-  {
-    "Key": "A",
-    "Value": "New",
-    "TxTimeStart": "2022-01-04T00:00:00Z",
-    "TxTimeEnd": null,
-    "ValidTimeStart": "2022-01-02T00:00:00Z",
-    "ValidTimeEnd": "2022-01-03T00:00:00Z"
-  },
-  {
-    "Key": "A",
-    "Value": "Old",
-    "TxTimeStart": "2022-01-04T00:00:00Z",
-    "TxTimeEnd": null,
-    "ValidTimeStart": "2022-01-01T00:00:00Z",
-    "ValidTimeEnd": "2022-01-02T00:00:00Z"
-  },
-  {
-    "Key": "A",
-    "Value": "Old",
-    "TxTimeStart": "2022-01-01T00:00:00Z",
-    "TxTimeEnd": "2022-01-04T00:00:00Z",
-    "ValidTimeStart": "2022-01-01T00:00:00Z",
-    "ValidTimeEnd": null
+{
+  "TestName": "TestSet/existing_entry_-_no_valid_end:_set_w/_valid_time_end._original_record_overhands_on_both_sides",
+  "Histories": {
+    "A": [
+      {
+        "Key": "A",
+        "Value": "Old",
+        "TxTimeStart": "2022-01-04T00:00:00Z",
+        "TxTimeEnd": null,
+        "ValidTimeStart": "2022-01-03T00:00:00Z",
+        "ValidTimeEnd": null
+      },
+      {
+        "Key": "A",
+        "Value": "New",
+        "TxTimeStart": "2022-01-04T00:00:00Z",
+        "TxTimeEnd": null,
+        "ValidTimeStart": "2022-01-02T00:00:00Z",
+        "ValidTimeEnd": "2022-01-03T00:00:00Z"
+      },
+      {
+        "Key": "A",
+        "Value": "Old",
+        "TxTimeStart": "2022-01-04T00:00:00Z",
+        "TxTimeEnd": null,
+        "ValidTimeStart": "2022-01-01T00:00:00Z",
+        "ValidTimeEnd": "2022-01-02T00:00:00Z"
+      },
+      {
+        "Key": "A",
+        "Value": "Old",
+        "TxTimeStart": "2022-01-01T00:00:00Z",
+        "TxTimeEnd": "2022-01-04T00:00:00Z",
+        "ValidTimeStart": "2022-01-01T00:00:00Z",
+        "ValidTimeEnd": null
+      }
+    ]
   }
-]
\ No newline at end of file
+}
\ No newline at end of file
diff --git a/memory/_testoutput/TestTXDBCrimeInvestigationExample.json b/memory/_testoutput/TestTXDBCrimeInvestigationExample.json
new file mode 100644
index 0000000..80ef86e
--- /dev/null
+++ b/memory/_testoutput/TestTXDBCrimeInvestigationExample.json
@@ -0,0 +1,331 @@
+{
+  "TestName": "TestTXDBCrimeInvestigationExample",
+  "Histories": {
+    "p1": [
+      {
+        "Key": "p1",
+        "Value": {
+          "arrival-time": "2019-01-04T00:00:00Z",
+          "departure-time": null,
+          "entry-pt": "LA"
+        },
+        "TxTimeStart": "2019-01-04T00:00:00Z",
+        "TxTimeEnd": null,
+        "ValidTimeStart": "2019-01-04T00:00:00Z",
+        "ValidTimeEnd": null
+      },
+      {
+        "Key": "p1",
+        "Value": {
+          "arrival-time": "2018-12-31T00:00:00Z",
+          "departure-time": "2019-01-03T00:00:00Z",
+          "entry-pt": "NY"
+        },
+        "TxTimeStart": "2019-01-04T00:00:00Z",
+        "TxTimeEnd": null,
+        "ValidTimeStart": "2019-01-03T00:00:00Z",
+        "ValidTimeEnd": "2019-01-04T00:00:00Z"
+      },
+      {
+        "Key": "p1",
+        "Value": {
+          "arrival-time": "2018-12-31T00:00:00Z",
+          "departure-time": null,
+          "entry-pt": "NY"
+        },
+        "TxTimeStart": "2019-01-04T00:00:00Z",
+        "TxTimeEnd": null,
+        "ValidTimeStart": "2018-12-31T00:00:00Z",
+        "ValidTimeEnd": "2019-01-03T00:00:00Z"
+      },
+      {
+        "Key": "p1",
+        "Value": {
+          "arrival-time": "2018-12-31T00:00:00Z",
+          "departure-time": null,
+          "entry-pt": "NY"
+        },
+        "TxTimeStart": "2019-01-04T00:00:00Z",
+        "TxTimeEnd": "2019-01-04T00:00:00Z",
+        "ValidTimeStart": "2018-12-31T00:00:00Z",
+        "ValidTimeEnd": null
+      },
+      {
+        "Key": "p1",
+        "Value": {
+          "arrival-time": "2018-12-31T00:00:00Z",
+          "departure-time": "2019-01-03T00:00:00Z",
+          "entry-pt": "NY"
+        },
+        "TxTimeStart": "2019-01-04T00:00:00Z",
+        "TxTimeEnd": "2019-01-04T00:00:00Z",
+        "ValidTimeStart": "2019-01-03T00:00:00Z",
+        "ValidTimeEnd": null
+      }
+    ],
+    "p2": [
+      {
+        "Key": "p2",
+        "Value": {
+          "arrival-time": "2018-12-31T00:00:00Z",
+          "departure-time": "2019-01-05T00:00:00Z",
+          "entry-pt": "SFO"
+        },
+        "TxTimeStart": "2019-01-05T00:00:00Z",
+        "TxTimeEnd": null,
+        "ValidTimeStart": "2019-01-05T00:00:00Z",
+        "ValidTimeEnd": null
+      },
+      {
+        "Key": "p2",
+        "Value": {
+          "arrival-time": "2018-12-31T00:00:00Z",
+          "departure-time": null,
+          "entry-pt": "SFO"
+        },
+        "TxTimeStart": "2019-01-05T00:00:00Z",
+        "TxTimeEnd": null,
+        "ValidTimeStart": "2018-12-31T00:00:00Z",
+        "ValidTimeEnd": "2019-01-05T00:00:00Z"
+      },
+      {
+        "Key": "p2",
+        "Value": {
+          "arrival-time": "2018-12-31T00:00:00Z",
+          "departure-time": null,
+          "entry-pt": "SFO"
+        },
+        "TxTimeStart": "2018-12-31T00:00:00Z",
+        "TxTimeEnd": "2019-01-05T00:00:00Z",
+        "ValidTimeStart": "2018-12-31T00:00:00Z",
+        "ValidTimeEnd": null
+      }
+    ],
+    "p3": [
+      {
+        "Key": "p3",
+        "Value": {
+          "arrival-time": "2019-01-08T00:00:00Z",
+          "departure-time": "2019-01-08T00:00:00Z",
+          "entry-pt": "SFO"
+        },
+        "TxTimeStart": "2019-01-09T00:00:00Z",
+        "TxTimeEnd": null,
+        "ValidTimeStart": "2019-01-09T00:00:00Z",
+        "ValidTimeEnd": null
+      },
+      {
+        "Key": "p3",
+        "Value": {
+          "arrival-time": "2019-01-08T00:00:00Z",
+          "departure-time": null,
+          "entry-pt": "SFO"
+        },
+        "TxTimeStart": "2019-01-09T00:00:00Z",
+        "TxTimeEnd": null,
+        "ValidTimeStart": "2019-01-08T00:00:00Z",
+        "ValidTimeEnd": "2019-01-09T00:00:00Z"
+      },
+      {
+        "Key": "p3",
+        "Value": {
+          "arrival-time": "2019-01-08T00:00:00Z",
+          "departure-time": null,
+          "entry-pt": "SFO"
+        },
+        "TxTimeStart": "2019-01-08T00:00:00Z",
+        "TxTimeEnd": "2019-01-09T00:00:00Z",
+        "ValidTimeStart": "2019-01-08T00:00:00Z",
+        "ValidTimeEnd": null
+      },
+      {
+        "Key": "p3",
+        "Value": {
+          "arrival-time": "2018-12-31T00:00:00Z",
+          "departure-time": "2019-01-07T00:00:00Z",
+          "entry-pt": "LA"
+        },
+        "TxTimeStart": "2019-01-07T00:00:00Z",
+        "TxTimeEnd": "2019-01-08T00:00:00Z",
+        "ValidTimeStart": "2019-01-07T00:00:00Z",
+        "ValidTimeEnd": null
+      },
+      {
+        "Key": "p3",
+        "Value": {
+          "arrival-time": "2018-12-31T00:00:00Z",
+          "departure-time": "2019-01-04T00:00:00Z",
+          "entry-pt": "LA"
+        },
+        "TxTimeStart": "2019-01-04T00:00:00Z",
+        "TxTimeEnd": "2019-01-07T00:00:00Z",
+        "ValidTimeStart": "2019-01-04T00:00:00Z",
+        "ValidTimeEnd": null
+      },
+      {
+        "Key": "p3",
+        "Value": {
+          "arrival-time": "2018-12-31T00:00:00Z",
+          "departure-time": null,
+          "entry-pt": "LA"
+        },
+        "TxTimeStart": "2019-01-07T00:00:00Z",
+        "TxTimeEnd": "2019-01-07T00:00:00Z",
+        "ValidTimeStart": "2019-01-04T00:00:00Z",
+        "ValidTimeEnd": null
+      },
+      {
+        "Key": "p3",
+        "Value": {
+          "arrival-time": "2018-12-31T00:00:00Z",
+          "departure-time": null,
+          "entry-pt": "LA"
+        },
+        "TxTimeStart": "2018-12-31T00:00:00Z",
+        "TxTimeEnd": "2019-01-04T00:00:00Z",
+        "ValidTimeStart": "2018-12-31T00:00:00Z",
+        "ValidTimeEnd": null
+      },
+      {
+        "Key": "p3",
+        "Value": {
+          "arrival-time": "2018-12-31T00:00:00Z",
+          "departure-time": "2019-01-07T00:00:00Z",
+          "entry-pt": "LA"
+        },
+        "TxTimeStart": "2019-01-08T00:00:00Z",
+        "TxTimeEnd": null,
+        "ValidTimeStart": "2019-01-07T00:00:00Z",
+        "ValidTimeEnd": "2019-01-08T00:00:00Z"
+      },
+      {
+        "Key": "p3",
+        "Value": {
+          "arrival-time": "2018-12-31T00:00:00Z",
+          "departure-time": null,
+          "entry-pt": "LA"
+        },
+        "TxTimeStart": "2019-01-07T00:00:00Z",
+        "TxTimeEnd": null,
+        "ValidTimeStart": "2019-01-04T00:00:00Z",
+        "ValidTimeEnd": "2019-01-07T00:00:00Z"
+      },
+      {
+        "Key": "p3",
+        "Value": {
+          "arrival-time": "2018-12-31T00:00:00Z",
+          "departure-time": null,
+          "entry-pt": "LA"
+        },
+        "TxTimeStart": "2019-01-04T00:00:00Z",
+        "TxTimeEnd": null,
+        "ValidTimeStart": "2018-12-31T00:00:00Z",
+        "ValidTimeEnd": "2019-01-04T00:00:00Z"
+      }
+    ],
+    "p4": [
+      {
+        "Key": "p4",
+        "Value": {
+          "arrival-time": "2019-01-08T00:00:00Z",
+          "departure-time": null,
+          "entry-pt": "LA"
+        },
+        "TxTimeStart": "2019-01-08T00:00:00Z",
+        "TxTimeEnd": null,
+        "ValidTimeStart": "2019-01-08T00:00:00Z",
+        "ValidTimeEnd": null
+      },
+      {
+        "Key": "p4",
+        "Value": {
+          "arrival-time": "2019-01-02T00:00:00Z",
+          "departure-time": "2019-01-03T00:00:00Z",
+          "entry-pt": "NY"
+        },
+        "TxTimeStart": "2019-01-08T00:00:00Z",
+        "TxTimeEnd": null,
+        "ValidTimeStart": "2019-01-03T00:00:00Z",
+        "ValidTimeEnd": "2019-01-08T00:00:00Z"
+      },
+      {
+        "Key": "p4",
+        "Value": {
+          "arrival-time": "2019-01-02T00:00:00Z",
+          "departure-time": "2019-01-03T00:00:00Z",
+          "entry-pt": "NY"
+        },
+        "TxTimeStart": "2019-01-03T00:00:00Z",
+        "TxTimeEnd": "2019-01-08T00:00:00Z",
+        "ValidTimeStart": "2019-01-03T00:00:00Z",
+        "ValidTimeEnd": null
+      },
+      {
+        "Key": "p4",
+        "Value": {
+          "arrival-time": "2019-01-02T00:00:00Z",
+          "departure-time": null,
+          "entry-pt": "NY"
+        },
+        "TxTimeStart": "2019-01-03T00:00:00Z",
+        "TxTimeEnd": null,
+        "ValidTimeStart": "2019-01-02T00:00:00Z",
+        "ValidTimeEnd": "2019-01-03T00:00:00Z"
+      },
+      {
+        "Key": "p4",
+        "Value": {
+          "arrival-time": "2019-01-02T00:00:00Z",
+          "departure-time": null,
+          "entry-pt": "NY"
+        },
+        "TxTimeStart": "2019-01-02T00:00:00Z",
+        "TxTimeEnd": "2019-01-03T00:00:00Z",
+        "ValidTimeStart": "2019-01-02T00:00:00Z",
+        "ValidTimeEnd": null
+      }
+    ],
+    "p5": [
+      {
+        "Key": "p5",
+        "Value": {
+          "arrival-time": "2019-01-10T00:00:00Z",
+          "departure-time": null,
+          "entry-pt": "LA"
+        },
+        "TxTimeStart": "2019-01-10T00:00:00Z",
+        "TxTimeEnd": null,
+        "ValidTimeStart": "2019-01-10T00:00:00Z",
+        "ValidTimeEnd": null
+      }
+    ],
+    "p6": [
+      {
+        "Key": "p6",
+        "Value": {
+          "arrival-time": "2019-01-12T00:00:00Z",
+          "departure-time": null,
+          "entry-pt": "NY"
+        },
+        "TxTimeStart": "2019-01-11T00:00:00Z",
+        "TxTimeEnd": null,
+        "ValidTimeStart": "2019-01-11T00:00:00Z",
+        "ValidTimeEnd": null
+      }
+    ],
+    "p7": [
+      {
+        "Key": "p7",
+        "Value": {
+          "arrival-time": "2019-01-11T00:00:00Z",
+          "departure-time": null,
+          "entry-pt": "NY"
+        },
+        "TxTimeStart": "2019-01-11T00:00:00Z",
+        "TxTimeEnd": null,
+        "ValidTimeStart": "2019-01-11T00:00:00Z",
+        "ValidTimeEnd": null
+      }
+    ]
+  }
+}
\ No newline at end of file
diff --git a/memory/db_examples_test.go b/memory/db_examples_test.go
index e06373c..5d6e210 100644
--- a/memory/db_examples_test.go
+++ b/memory/db_examples_test.go
@@ -24,6 +24,8 @@ func TestTXDBCrimeInvestigationExample(t *testing.T) {
 	clock := &dbtest.TestClock{}
 	db, err := memory.NewDB(memory.WithClock(clock))
 	require.Nil(t, err)
+	keys := []string{"p1", "p2", "p3", "p4", "p5", "p6", "p7"}
+	defer dbtest.WriteOutputHistory(db, keys, t.Name())
 
 	type Doc map[string]interface{}
 
@@ -308,6 +310,7 @@ func TestRobinhoodExample(t *testing.T) {
 	clock := &dbtest.TestClock{}
 	db, err := memory.NewDB(memory.WithClock(clock))
 	require.Nil(t, err)
+	defer dbtest.WriteOutputHistory(db, []string{"user-1"}, t.Name())
 
 	type Balance map[string]interface{}
 
diff --git a/sql/_testoutput/TestGet_empty_db_not_found.json b/sql/_testoutput/TestGet_empty_db_not_found.json
index 0637a08..813fd04 100644
--- a/sql/_testoutput/TestGet_empty_db_not_found.json
+++ b/sql/_testoutput/TestGet_empty_db_not_found.json
@@ -1 +1,6 @@
-[]
\ No newline at end of file
+{
+  "TestName": "TestGet/empty_db:_not_found",
+  "Histories": {
+    "A": []
+  }
+}
\ No newline at end of file
diff --git a/sql/_testoutput/TestGet_initial_set_and_then_deletion_with_later_valid_time_as_of_tx_time_before_update_as_of_valid_time_before_update.json b/sql/_testoutput/TestGet_initial_set_and_then_deletion_with_later_valid_time_as_of_tx_time_before_update_as_of_valid_time_before_update.json
index ffb7d5d..77856ac 100644
--- a/sql/_testoutput/TestGet_initial_set_and_then_deletion_with_later_valid_time_as_of_tx_time_before_update_as_of_valid_time_before_update.json
+++ b/sql/_testoutput/TestGet_initial_set_and_then_deletion_with_later_valid_time_as_of_tx_time_before_update_as_of_valid_time_before_update.json
@@ -1,30 +1,35 @@
-[
-  {
-    "Key": "A",
-    "Value": {
-      "balance": 0,
-      "deleted_at": null,
-      "is_active": false,
-      "type": "checking",
-      "updated_at": "2021-01-01T00:00:00Z"
-    },
-    "TxTimeStart": "2022-01-03T00:00:00Z",
-    "TxTimeEnd": null,
-    "ValidTimeStart": "2022-01-01T00:00:00Z",
-    "ValidTimeEnd": "2022-01-03T00:00:00Z"
-  },
-  {
-    "Key": "A",
-    "Value": {
-      "balance": 0,
-      "deleted_at": null,
-      "is_active": false,
-      "type": "checking",
-      "updated_at": "2021-01-01T00:00:00Z"
-    },
-    "TxTimeStart": "2022-01-01T00:00:00Z",
-    "TxTimeEnd": "2022-01-03T00:00:00Z",
-    "ValidTimeStart": "2022-01-01T00:00:00Z",
-    "ValidTimeEnd": null
+{
+  "TestName": "TestGet/initial_set,_and_then_deletion_with_later_valid_time:_as_of_tx_time_before_update,_as_of_valid_time_before_update",
+  "Histories": {
+    "A": [
+      {
+        "Key": "A",
+        "Value": {
+          "balance": 0,
+          "deleted_at": null,
+          "is_active": false,
+          "type": "checking",
+          "updated_at": "2021-01-01T00:00:00Z"
+        },
+        "TxTimeStart": "2022-01-03T00:00:00Z",
+        "TxTimeEnd": null,
+        "ValidTimeStart": "2022-01-01T00:00:00Z",
+        "ValidTimeEnd": "2022-01-03T00:00:00Z"
+      },
+      {
+        "Key": "A",
+        "Value": {
+          "balance": 0,
+          "deleted_at": null,
+          "is_active": false,
+          "type": "checking",
+          "updated_at": "2021-01-01T00:00:00Z"
+        },
+        "TxTimeStart": "2022-01-01T00:00:00Z",
+        "TxTimeEnd": "2022-01-03T00:00:00Z",
+        "ValidTimeStart": "2022-01-01T00:00:00Z",
+        "ValidTimeEnd": null
+      }
+    ]
   }
-]
\ No newline at end of file
+}
\ No newline at end of file
diff --git a/sql/_testoutput/TestGet_initial_set_and_then_deletion_with_later_valid_time_as_of_tx_time_before_update_as_of_valid_time_now.json b/sql/_testoutput/TestGet_initial_set_and_then_deletion_with_later_valid_time_as_of_tx_time_before_update_as_of_valid_time_now.json
index ffb7d5d..1b595c3 100644
--- a/sql/_testoutput/TestGet_initial_set_and_then_deletion_with_later_valid_time_as_of_tx_time_before_update_as_of_valid_time_now.json
+++ b/sql/_testoutput/TestGet_initial_set_and_then_deletion_with_later_valid_time_as_of_tx_time_before_update_as_of_valid_time_now.json
@@ -1,30 +1,35 @@
-[
-  {
-    "Key": "A",
-    "Value": {
-      "balance": 0,
-      "deleted_at": null,
-      "is_active": false,
-      "type": "checking",
-      "updated_at": "2021-01-01T00:00:00Z"
-    },
-    "TxTimeStart": "2022-01-03T00:00:00Z",
-    "TxTimeEnd": null,
-    "ValidTimeStart": "2022-01-01T00:00:00Z",
-    "ValidTimeEnd": "2022-01-03T00:00:00Z"
-  },
-  {
-    "Key": "A",
-    "Value": {
-      "balance": 0,
-      "deleted_at": null,
-      "is_active": false,
-      "type": "checking",
-      "updated_at": "2021-01-01T00:00:00Z"
-    },
-    "TxTimeStart": "2022-01-01T00:00:00Z",
-    "TxTimeEnd": "2022-01-03T00:00:00Z",
-    "ValidTimeStart": "2022-01-01T00:00:00Z",
-    "ValidTimeEnd": null
+{
+  "TestName": "TestGet/initial_set,_and_then_deletion_with_later_valid_time:_as_of_tx_time_before_update,_as_of_valid_time_now",
+  "Histories": {
+    "A": [
+      {
+        "Key": "A",
+        "Value": {
+          "balance": 0,
+          "deleted_at": null,
+          "is_active": false,
+          "type": "checking",
+          "updated_at": "2021-01-01T00:00:00Z"
+        },
+        "TxTimeStart": "2022-01-03T00:00:00Z",
+        "TxTimeEnd": null,
+        "ValidTimeStart": "2022-01-01T00:00:00Z",
+        "ValidTimeEnd": "2022-01-03T00:00:00Z"
+      },
+      {
+        "Key": "A",
+        "Value": {
+          "balance": 0,
+          "deleted_at": null,
+          "is_active": false,
+          "type": "checking",
+          "updated_at": "2021-01-01T00:00:00Z"
+        },
+        "TxTimeStart": "2022-01-01T00:00:00Z",
+        "TxTimeEnd": "2022-01-03T00:00:00Z",
+        "ValidTimeStart": "2022-01-01T00:00:00Z",
+        "ValidTimeEnd": null
+      }
+    ]
   }
-]
\ No newline at end of file
+}
\ No newline at end of file
diff --git a/sql/_testoutput/TestGet_initial_set_and_then_deletion_with_later_valid_time_as_of_tx_time_now_as_of_valid_time_before_update.json b/sql/_testoutput/TestGet_initial_set_and_then_deletion_with_later_valid_time_as_of_tx_time_now_as_of_valid_time_before_update.json
index ffb7d5d..23d5403 100644
--- a/sql/_testoutput/TestGet_initial_set_and_then_deletion_with_later_valid_time_as_of_tx_time_now_as_of_valid_time_before_update.json
+++ b/sql/_testoutput/TestGet_initial_set_and_then_deletion_with_later_valid_time_as_of_tx_time_now_as_of_valid_time_before_update.json
@@ -1,30 +1,35 @@
-[
-  {
-    "Key": "A",
-    "Value": {
-      "balance": 0,
-      "deleted_at": null,
-      "is_active": false,
-      "type": "checking",
-      "updated_at": "2021-01-01T00:00:00Z"
-    },
-    "TxTimeStart": "2022-01-03T00:00:00Z",
-    "TxTimeEnd": null,
-    "ValidTimeStart": "2022-01-01T00:00:00Z",
-    "ValidTimeEnd": "2022-01-03T00:00:00Z"
-  },
-  {
-    "Key": "A",
-    "Value": {
-      "balance": 0,
-      "deleted_at": null,
-      "is_active": false,
-      "type": "checking",
-      "updated_at": "2021-01-01T00:00:00Z"
-    },
-    "TxTimeStart": "2022-01-01T00:00:00Z",
-    "TxTimeEnd": "2022-01-03T00:00:00Z",
-    "ValidTimeStart": "2022-01-01T00:00:00Z",
-    "ValidTimeEnd": null
+{
+  "TestName": "TestGet/initial_set,_and_then_deletion_with_later_valid_time:_as_of_tx_time_now,_as_of_valid_time_before_update",
+  "Histories": {
+    "A": [
+      {
+        "Key": "A",
+        "Value": {
+          "balance": 0,
+          "deleted_at": null,
+          "is_active": false,
+          "type": "checking",
+          "updated_at": "2021-01-01T00:00:00Z"
+        },
+        "TxTimeStart": "2022-01-03T00:00:00Z",
+        "TxTimeEnd": null,
+        "ValidTimeStart": "2022-01-01T00:00:00Z",
+        "ValidTimeEnd": "2022-01-03T00:00:00Z"
+      },
+      {
+        "Key": "A",
+        "Value": {
+          "balance": 0,
+          "deleted_at": null,
+          "is_active": false,
+          "type": "checking",
+          "updated_at": "2021-01-01T00:00:00Z"
+        },
+        "TxTimeStart": "2022-01-01T00:00:00Z",
+        "TxTimeEnd": "2022-01-03T00:00:00Z",
+        "ValidTimeStart": "2022-01-01T00:00:00Z",
+        "ValidTimeEnd": null
+      }
+    ]
   }
-]
\ No newline at end of file
+}
\ No newline at end of file
diff --git a/sql/_testoutput/TestGet_initial_set_and_then_deletion_with_later_valid_time_not_found_default_as_of_times.json b/sql/_testoutput/TestGet_initial_set_and_then_deletion_with_later_valid_time_not_found_default_as_of_times.json
index ffb7d5d..523ac1d 100644
--- a/sql/_testoutput/TestGet_initial_set_and_then_deletion_with_later_valid_time_not_found_default_as_of_times.json
+++ b/sql/_testoutput/TestGet_initial_set_and_then_deletion_with_later_valid_time_not_found_default_as_of_times.json
@@ -1,30 +1,35 @@
-[
-  {
-    "Key": "A",
-    "Value": {
-      "balance": 0,
-      "deleted_at": null,
-      "is_active": false,
-      "type": "checking",
-      "updated_at": "2021-01-01T00:00:00Z"
-    },
-    "TxTimeStart": "2022-01-03T00:00:00Z",
-    "TxTimeEnd": null,
-    "ValidTimeStart": "2022-01-01T00:00:00Z",
-    "ValidTimeEnd": "2022-01-03T00:00:00Z"
-  },
-  {
-    "Key": "A",
-    "Value": {
-      "balance": 0,
-      "deleted_at": null,
-      "is_active": false,
-      "type": "checking",
-      "updated_at": "2021-01-01T00:00:00Z"
-    },
-    "TxTimeStart": "2022-01-01T00:00:00Z",
-    "TxTimeEnd": "2022-01-03T00:00:00Z",
-    "ValidTimeStart": "2022-01-01T00:00:00Z",
-    "ValidTimeEnd": null
+{
+  "TestName": "TestGet/initial_set,_and_then_deletion_with_later_valid_time:_not_found_-_default_as_of_times",
+  "Histories": {
+    "A": [
+      {
+        "Key": "A",
+        "Value": {
+          "balance": 0,
+          "deleted_at": null,
+          "is_active": false,
+          "type": "checking",
+          "updated_at": "2021-01-01T00:00:00Z"
+        },
+        "TxTimeStart": "2022-01-03T00:00:00Z",
+        "TxTimeEnd": null,
+        "ValidTimeStart": "2022-01-01T00:00:00Z",
+        "ValidTimeEnd": "2022-01-03T00:00:00Z"
+      },
+      {
+        "Key": "A",
+        "Value": {
+          "balance": 0,
+          "deleted_at": null,
+          "is_active": false,
+          "type": "checking",
+          "updated_at": "2021-01-01T00:00:00Z"
+        },
+        "TxTimeStart": "2022-01-01T00:00:00Z",
+        "TxTimeEnd": "2022-01-03T00:00:00Z",
+        "ValidTimeStart": "2022-01-01T00:00:00Z",
+        "ValidTimeEnd": null
+      }
+    ]
   }
-]
\ No newline at end of file
+}
\ No newline at end of file
diff --git a/sql/_testoutput/TestGet_initial_set_and_then_set_with_later_valid_time_as_of_tx_time_before_update_as_of_valid_time_before_update.json b/sql/_testoutput/TestGet_initial_set_and_then_set_with_later_valid_time_as_of_tx_time_before_update_as_of_valid_time_before_update.json
index 0d5ceec..813a25f 100644
--- a/sql/_testoutput/TestGet_initial_set_and_then_set_with_later_valid_time_as_of_tx_time_before_update_as_of_valid_time_before_update.json
+++ b/sql/_testoutput/TestGet_initial_set_and_then_set_with_later_valid_time_as_of_tx_time_before_update_as_of_valid_time_before_update.json
@@ -1,44 +1,49 @@
-[
-  {
-    "Key": "A",
-    "Value": {
-      "balance": 100,
-      "deleted_at": null,
-      "is_active": true,
-      "type": "checking",
-      "updated_at": "2021-01-02T00:00:00Z"
-    },
-    "TxTimeStart": "2022-01-03T00:00:00Z",
-    "TxTimeEnd": null,
-    "ValidTimeStart": "2022-01-03T00:00:00Z",
-    "ValidTimeEnd": null
-  },
-  {
-    "Key": "A",
-    "Value": {
-      "balance": 0,
-      "deleted_at": null,
-      "is_active": false,
-      "type": "checking",
-      "updated_at": "2021-01-01T00:00:00Z"
-    },
-    "TxTimeStart": "2022-01-03T00:00:00Z",
-    "TxTimeEnd": null,
-    "ValidTimeStart": "2022-01-01T00:00:00Z",
-    "ValidTimeEnd": "2022-01-03T00:00:00Z"
-  },
-  {
-    "Key": "A",
-    "Value": {
-      "balance": 0,
-      "deleted_at": null,
-      "is_active": false,
-      "type": "checking",
-      "updated_at": "2021-01-01T00:00:00Z"
-    },
-    "TxTimeStart": "2022-01-01T00:00:00Z",
-    "TxTimeEnd": "2022-01-03T00:00:00Z",
-    "ValidTimeStart": "2022-01-01T00:00:00Z",
-    "ValidTimeEnd": null
+{
+  "TestName": "TestGet/initial_set,_and_then_set_with_later_valid_time:_as_of_tx_time_before_update,_as_of_valid_time_before_update",
+  "Histories": {
+    "A": [
+      {
+        "Key": "A",
+        "Value": {
+          "balance": 100,
+          "deleted_at": null,
+          "is_active": true,
+          "type": "checking",
+          "updated_at": "2021-01-02T00:00:00Z"
+        },
+        "TxTimeStart": "2022-01-03T00:00:00Z",
+        "TxTimeEnd": null,
+        "ValidTimeStart": "2022-01-03T00:00:00Z",
+        "ValidTimeEnd": null
+      },
+      {
+        "Key": "A",
+        "Value": {
+          "balance": 0,
+          "deleted_at": null,
+          "is_active": false,
+          "type": "checking",
+          "updated_at": "2021-01-01T00:00:00Z"
+        },
+        "TxTimeStart": "2022-01-03T00:00:00Z",
+        "TxTimeEnd": null,
+        "ValidTimeStart": "2022-01-01T00:00:00Z",
+        "ValidTimeEnd": "2022-01-03T00:00:00Z"
+      },
+      {
+        "Key": "A",
+        "Value": {
+          "balance": 0,
+          "deleted_at": null,
+          "is_active": false,
+          "type": "checking",
+          "updated_at": "2021-01-01T00:00:00Z"
+        },
+        "TxTimeStart": "2022-01-01T00:00:00Z",
+        "TxTimeEnd": "2022-01-03T00:00:00Z",
+        "ValidTimeStart": "2022-01-01T00:00:00Z",
+        "ValidTimeEnd": null
+      }
+    ]
   }
-]
\ No newline at end of file
+}
\ No newline at end of file
diff --git a/sql/_testoutput/TestGet_initial_set_and_then_set_with_later_valid_time_as_of_tx_time_before_update_as_of_valid_time_now.json b/sql/_testoutput/TestGet_initial_set_and_then_set_with_later_valid_time_as_of_tx_time_before_update_as_of_valid_time_now.json
index 0d5ceec..8807805 100644
--- a/sql/_testoutput/TestGet_initial_set_and_then_set_with_later_valid_time_as_of_tx_time_before_update_as_of_valid_time_now.json
+++ b/sql/_testoutput/TestGet_initial_set_and_then_set_with_later_valid_time_as_of_tx_time_before_update_as_of_valid_time_now.json
@@ -1,44 +1,49 @@
-[
-  {
-    "Key": "A",
-    "Value": {
-      "balance": 100,
-      "deleted_at": null,
-      "is_active": true,
-      "type": "checking",
-      "updated_at": "2021-01-02T00:00:00Z"
-    },
-    "TxTimeStart": "2022-01-03T00:00:00Z",
-    "TxTimeEnd": null,
-    "ValidTimeStart": "2022-01-03T00:00:00Z",
-    "ValidTimeEnd": null
-  },
-  {
-    "Key": "A",
-    "Value": {
-      "balance": 0,
-      "deleted_at": null,
-      "is_active": false,
-      "type": "checking",
-      "updated_at": "2021-01-01T00:00:00Z"
-    },
-    "TxTimeStart": "2022-01-03T00:00:00Z",
-    "TxTimeEnd": null,
-    "ValidTimeStart": "2022-01-01T00:00:00Z",
-    "ValidTimeEnd": "2022-01-03T00:00:00Z"
-  },
-  {
-    "Key": "A",
-    "Value": {
-      "balance": 0,
-      "deleted_at": null,
-      "is_active": false,
-      "type": "checking",
-      "updated_at": "2021-01-01T00:00:00Z"
-    },
-    "TxTimeStart": "2022-01-01T00:00:00Z",
-    "TxTimeEnd": "2022-01-03T00:00:00Z",
-    "ValidTimeStart": "2022-01-01T00:00:00Z",
-    "ValidTimeEnd": null
+{
+  "TestName": "TestGet/initial_set,_and_then_set_with_later_valid_time:_as_of_tx_time_before_update,_as_of_valid_time_now",
+  "Histories": {
+    "A": [
+      {
+        "Key": "A",
+        "Value": {
+          "balance": 100,
+          "deleted_at": null,
+          "is_active": true,
+          "type": "checking",
+          "updated_at": "2021-01-02T00:00:00Z"
+        },
+        "TxTimeStart": "2022-01-03T00:00:00Z",
+        "TxTimeEnd": null,
+        "ValidTimeStart": "2022-01-03T00:00:00Z",
+        "ValidTimeEnd": null
+      },
+      {
+        "Key": "A",
+        "Value": {
+          "balance": 0,
+          "deleted_at": null,
+          "is_active": false,
+          "type": "checking",
+          "updated_at": "2021-01-01T00:00:00Z"
+        },
+        "TxTimeStart": "2022-01-03T00:00:00Z",
+        "TxTimeEnd": null,
+        "ValidTimeStart": "2022-01-01T00:00:00Z",
+        "ValidTimeEnd": "2022-01-03T00:00:00Z"
+      },
+      {
+        "Key": "A",
+        "Value": {
+          "balance": 0,
+          "deleted_at": null,
+          "is_active": false,
+          "type": "checking",
+          "updated_at": "2021-01-01T00:00:00Z"
+        },
+        "TxTimeStart": "2022-01-01T00:00:00Z",
+        "TxTimeEnd": "2022-01-03T00:00:00Z",
+        "ValidTimeStart": "2022-01-01T00:00:00Z",
+        "ValidTimeEnd": null
+      }
+    ]
   }
-]
\ No newline at end of file
+}
\ No newline at end of file
diff --git a/sql/_testoutput/TestGet_initial_set_and_then_set_with_later_valid_time_as_of_tx_time_now_as_of_valid_time_before_update.json b/sql/_testoutput/TestGet_initial_set_and_then_set_with_later_valid_time_as_of_tx_time_now_as_of_valid_time_before_update.json
index 0d5ceec..ace8369 100644
--- a/sql/_testoutput/TestGet_initial_set_and_then_set_with_later_valid_time_as_of_tx_time_now_as_of_valid_time_before_update.json
+++ b/sql/_testoutput/TestGet_initial_set_and_then_set_with_later_valid_time_as_of_tx_time_now_as_of_valid_time_before_update.json
@@ -1,44 +1,49 @@
-[
-  {
-    "Key": "A",
-    "Value": {
-      "balance": 100,
-      "deleted_at": null,
-      "is_active": true,
-      "type": "checking",
-      "updated_at": "2021-01-02T00:00:00Z"
-    },
-    "TxTimeStart": "2022-01-03T00:00:00Z",
-    "TxTimeEnd": null,
-    "ValidTimeStart": "2022-01-03T00:00:00Z",
-    "ValidTimeEnd": null
-  },
-  {
-    "Key": "A",
-    "Value": {
-      "balance": 0,
-      "deleted_at": null,
-      "is_active": false,
-      "type": "checking",
-      "updated_at": "2021-01-01T00:00:00Z"
-    },
-    "TxTimeStart": "2022-01-03T00:00:00Z",
-    "TxTimeEnd": null,
-    "ValidTimeStart": "2022-01-01T00:00:00Z",
-    "ValidTimeEnd": "2022-01-03T00:00:00Z"
-  },
-  {
-    "Key": "A",
-    "Value": {
-      "balance": 0,
-      "deleted_at": null,
-      "is_active": false,
-      "type": "checking",
-      "updated_at": "2021-01-01T00:00:00Z"
-    },
-    "TxTimeStart": "2022-01-01T00:00:00Z",
-    "TxTimeEnd": "2022-01-03T00:00:00Z",
-    "ValidTimeStart": "2022-01-01T00:00:00Z",
-    "ValidTimeEnd": null
+{
+  "TestName": "TestGet/initial_set,_and_then_set_with_later_valid_time:_as_of_tx_time_now,_as_of_valid_time_before_update",
+  "Histories": {
+    "A": [
+      {
+        "Key": "A",
+        "Value": {
+          "balance": 100,
+          "deleted_at": null,
+          "is_active": true,
+          "type": "checking",
+          "updated_at": "2021-01-02T00:00:00Z"
+        },
+        "TxTimeStart": "2022-01-03T00:00:00Z",
+        "TxTimeEnd": null,
+        "ValidTimeStart": "2022-01-03T00:00:00Z",
+        "ValidTimeEnd": null
+      },
+      {
+        "Key": "A",
+        "Value": {
+          "balance": 0,
+          "deleted_at": null,
+          "is_active": false,
+          "type": "checking",
+          "updated_at": "2021-01-01T00:00:00Z"
+        },
+        "TxTimeStart": "2022-01-03T00:00:00Z",
+        "TxTimeEnd": null,
+        "ValidTimeStart": "2022-01-01T00:00:00Z",
+        "ValidTimeEnd": "2022-01-03T00:00:00Z"
+      },
+      {
+        "Key": "A",
+        "Value": {
+          "balance": 0,
+          "deleted_at": null,
+          "is_active": false,
+          "type": "checking",
+          "updated_at": "2021-01-01T00:00:00Z"
+        },
+        "TxTimeStart": "2022-01-01T00:00:00Z",
+        "TxTimeEnd": "2022-01-03T00:00:00Z",
+        "ValidTimeStart": "2022-01-01T00:00:00Z",
+        "ValidTimeEnd": null
+      }
+    ]
   }
-]
\ No newline at end of file
+}
\ No newline at end of file
diff --git a/sql/_testoutput/TestGet_initial_set_and_then_set_with_later_valid_time_found_default_as_of_times.json b/sql/_testoutput/TestGet_initial_set_and_then_set_with_later_valid_time_found_default_as_of_times.json
index 0d5ceec..8bed7a1 100644
--- a/sql/_testoutput/TestGet_initial_set_and_then_set_with_later_valid_time_found_default_as_of_times.json
+++ b/sql/_testoutput/TestGet_initial_set_and_then_set_with_later_valid_time_found_default_as_of_times.json
@@ -1,44 +1,49 @@
-[
-  {
-    "Key": "A",
-    "Value": {
-      "balance": 100,
-      "deleted_at": null,
-      "is_active": true,
-      "type": "checking",
-      "updated_at": "2021-01-02T00:00:00Z"
-    },
-    "TxTimeStart": "2022-01-03T00:00:00Z",
-    "TxTimeEnd": null,
-    "ValidTimeStart": "2022-01-03T00:00:00Z",
-    "ValidTimeEnd": null
-  },
-  {
-    "Key": "A",
-    "Value": {
-      "balance": 0,
-      "deleted_at": null,
-      "is_active": false,
-      "type": "checking",
-      "updated_at": "2021-01-01T00:00:00Z"
-    },
-    "TxTimeStart": "2022-01-03T00:00:00Z",
-    "TxTimeEnd": null,
-    "ValidTimeStart": "2022-01-01T00:00:00Z",
-    "ValidTimeEnd": "2022-01-03T00:00:00Z"
-  },
-  {
-    "Key": "A",
-    "Value": {
-      "balance": 0,
-      "deleted_at": null,
-      "is_active": false,
-      "type": "checking",
-      "updated_at": "2021-01-01T00:00:00Z"
-    },
-    "TxTimeStart": "2022-01-01T00:00:00Z",
-    "TxTimeEnd": "2022-01-03T00:00:00Z",
-    "ValidTimeStart": "2022-01-01T00:00:00Z",
-    "ValidTimeEnd": null
+{
+  "TestName": "TestGet/initial_set,_and_then_set_with_later_valid_time:_found_-_default_as_of_times",
+  "Histories": {
+    "A": [
+      {
+        "Key": "A",
+        "Value": {
+          "balance": 100,
+          "deleted_at": null,
+          "is_active": true,
+          "type": "checking",
+          "updated_at": "2021-01-02T00:00:00Z"
+        },
+        "TxTimeStart": "2022-01-03T00:00:00Z",
+        "TxTimeEnd": null,
+        "ValidTimeStart": "2022-01-03T00:00:00Z",
+        "ValidTimeEnd": null
+      },
+      {
+        "Key": "A",
+        "Value": {
+          "balance": 0,
+          "deleted_at": null,
+          "is_active": false,
+          "type": "checking",
+          "updated_at": "2021-01-01T00:00:00Z"
+        },
+        "TxTimeStart": "2022-01-03T00:00:00Z",
+        "TxTimeEnd": null,
+        "ValidTimeStart": "2022-01-01T00:00:00Z",
+        "ValidTimeEnd": "2022-01-03T00:00:00Z"
+      },
+      {
+        "Key": "A",
+        "Value": {
+          "balance": 0,
+          "deleted_at": null,
+          "is_active": false,
+          "type": "checking",
+          "updated_at": "2021-01-01T00:00:00Z"
+        },
+        "TxTimeStart": "2022-01-01T00:00:00Z",
+        "TxTimeEnd": "2022-01-03T00:00:00Z",
+        "ValidTimeStart": "2022-01-01T00:00:00Z",
+        "ValidTimeEnd": null
+      }
+    ]
   }
-]
\ No newline at end of file
+}
\ No newline at end of file
diff --git a/sql/_testoutput/TestGet_single_set_no_end_found_as_of_tx_time_T_in_range.json b/sql/_testoutput/TestGet_single_set_no_end_found_as_of_tx_time_T_in_range.json
index 907645c..bcb7c70 100644
--- a/sql/_testoutput/TestGet_single_set_no_end_found_as_of_tx_time_T_in_range.json
+++ b/sql/_testoutput/TestGet_single_set_no_end_found_as_of_tx_time_T_in_range.json
@@ -1,16 +1,21 @@
-[
-  {
-    "Key": "A",
-    "Value": {
-      "balance": 0,
-      "deleted_at": null,
-      "is_active": false,
-      "type": "checking",
-      "updated_at": "2021-01-01T00:00:00Z"
-    },
-    "TxTimeStart": "2022-01-01T00:00:00Z",
-    "TxTimeEnd": null,
-    "ValidTimeStart": "2022-01-01T00:00:00Z",
-    "ValidTimeEnd": null
+{
+  "TestName": "TestGet/single_set,_no_end:_found_-_as_of_tx_time_T_in_range",
+  "Histories": {
+    "A": [
+      {
+        "Key": "A",
+        "Value": {
+          "balance": 0,
+          "deleted_at": null,
+          "is_active": false,
+          "type": "checking",
+          "updated_at": "2021-01-01T00:00:00Z"
+        },
+        "TxTimeStart": "2022-01-01T00:00:00Z",
+        "TxTimeEnd": null,
+        "ValidTimeStart": "2022-01-01T00:00:00Z",
+        "ValidTimeEnd": null
+      }
+    ]
   }
-]
\ No newline at end of file
+}
\ No newline at end of file
diff --git a/sql/_testoutput/TestGet_single_set_no_end_found_as_of_tx_time_T_in_range_inclusive_.json b/sql/_testoutput/TestGet_single_set_no_end_found_as_of_tx_time_T_in_range_inclusive_.json
index 907645c..fb896eb 100644
--- a/sql/_testoutput/TestGet_single_set_no_end_found_as_of_tx_time_T_in_range_inclusive_.json
+++ b/sql/_testoutput/TestGet_single_set_no_end_found_as_of_tx_time_T_in_range_inclusive_.json
@@ -1,16 +1,21 @@
-[
-  {
-    "Key": "A",
-    "Value": {
-      "balance": 0,
-      "deleted_at": null,
-      "is_active": false,
-      "type": "checking",
-      "updated_at": "2021-01-01T00:00:00Z"
-    },
-    "TxTimeStart": "2022-01-01T00:00:00Z",
-    "TxTimeEnd": null,
-    "ValidTimeStart": "2022-01-01T00:00:00Z",
-    "ValidTimeEnd": null
+{
+  "TestName": "TestGet/single_set,_no_end:_found_-_as_of_tx_time_T_in_range_(inclusive)",
+  "Histories": {
+    "A": [
+      {
+        "Key": "A",
+        "Value": {
+          "balance": 0,
+          "deleted_at": null,
+          "is_active": false,
+          "type": "checking",
+          "updated_at": "2021-01-01T00:00:00Z"
+        },
+        "TxTimeStart": "2022-01-01T00:00:00Z",
+        "TxTimeEnd": null,
+        "ValidTimeStart": "2022-01-01T00:00:00Z",
+        "ValidTimeEnd": null
+      }
+    ]
   }
-]
\ No newline at end of file
+}
\ No newline at end of file
diff --git a/sql/_testoutput/TestGet_single_set_no_end_found_as_of_valid_time_T_in_range.json b/sql/_testoutput/TestGet_single_set_no_end_found_as_of_valid_time_T_in_range.json
index 907645c..1633d07 100644
--- a/sql/_testoutput/TestGet_single_set_no_end_found_as_of_valid_time_T_in_range.json
+++ b/sql/_testoutput/TestGet_single_set_no_end_found_as_of_valid_time_T_in_range.json
@@ -1,16 +1,21 @@
-[
-  {
-    "Key": "A",
-    "Value": {
-      "balance": 0,
-      "deleted_at": null,
-      "is_active": false,
-      "type": "checking",
-      "updated_at": "2021-01-01T00:00:00Z"
-    },
-    "TxTimeStart": "2022-01-01T00:00:00Z",
-    "TxTimeEnd": null,
-    "ValidTimeStart": "2022-01-01T00:00:00Z",
-    "ValidTimeEnd": null
+{
+  "TestName": "TestGet/single_set,_no_end:_found_-_as_of_valid_time_T_in_range",
+  "Histories": {
+    "A": [
+      {
+        "Key": "A",
+        "Value": {
+          "balance": 0,
+          "deleted_at": null,
+          "is_active": false,
+          "type": "checking",
+          "updated_at": "2021-01-01T00:00:00Z"
+        },
+        "TxTimeStart": "2022-01-01T00:00:00Z",
+        "TxTimeEnd": null,
+        "ValidTimeStart": "2022-01-01T00:00:00Z",
+        "ValidTimeEnd": null
+      }
+    ]
   }
-]
\ No newline at end of file
+}
\ No newline at end of file
diff --git a/sql/_testoutput/TestGet_single_set_no_end_found_as_of_valid_time_T_in_range_inclusive_.json b/sql/_testoutput/TestGet_single_set_no_end_found_as_of_valid_time_T_in_range_inclusive_.json
index 907645c..7d23818 100644
--- a/sql/_testoutput/TestGet_single_set_no_end_found_as_of_valid_time_T_in_range_inclusive_.json
+++ b/sql/_testoutput/TestGet_single_set_no_end_found_as_of_valid_time_T_in_range_inclusive_.json
@@ -1,16 +1,21 @@
-[
-  {
-    "Key": "A",
-    "Value": {
-      "balance": 0,
-      "deleted_at": null,
-      "is_active": false,
-      "type": "checking",
-      "updated_at": "2021-01-01T00:00:00Z"
-    },
-    "TxTimeStart": "2022-01-01T00:00:00Z",
-    "TxTimeEnd": null,
-    "ValidTimeStart": "2022-01-01T00:00:00Z",
-    "ValidTimeEnd": null
+{
+  "TestName": "TestGet/single_set,_no_end:_found_-_as_of_valid_time_T_in_range_(inclusive)",
+  "Histories": {
+    "A": [
+      {
+        "Key": "A",
+        "Value": {
+          "balance": 0,
+          "deleted_at": null,
+          "is_active": false,
+          "type": "checking",
+          "updated_at": "2021-01-01T00:00:00Z"
+        },
+        "TxTimeStart": "2022-01-01T00:00:00Z",
+        "TxTimeEnd": null,
+        "ValidTimeStart": "2022-01-01T00:00:00Z",
+        "ValidTimeEnd": null
+      }
+    ]
   }
-]
\ No newline at end of file
+}
\ No newline at end of file
diff --git a/sql/_testoutput/TestGet_single_set_no_end_found_default_as_of_times.json b/sql/_testoutput/TestGet_single_set_no_end_found_default_as_of_times.json
index 907645c..367bc4f 100644
--- a/sql/_testoutput/TestGet_single_set_no_end_found_default_as_of_times.json
+++ b/sql/_testoutput/TestGet_single_set_no_end_found_default_as_of_times.json
@@ -1,16 +1,21 @@
-[
-  {
-    "Key": "A",
-    "Value": {
-      "balance": 0,
-      "deleted_at": null,
-      "is_active": false,
-      "type": "checking",
-      "updated_at": "2021-01-01T00:00:00Z"
-    },
-    "TxTimeStart": "2022-01-01T00:00:00Z",
-    "TxTimeEnd": null,
-    "ValidTimeStart": "2022-01-01T00:00:00Z",
-    "ValidTimeEnd": null
+{
+  "TestName": "TestGet/single_set,_no_end:_found_-_default_as_of_times",
+  "Histories": {
+    "A": [
+      {
+        "Key": "A",
+        "Value": {
+          "balance": 0,
+          "deleted_at": null,
+          "is_active": false,
+          "type": "checking",
+          "updated_at": "2021-01-01T00:00:00Z"
+        },
+        "TxTimeStart": "2022-01-01T00:00:00Z",
+        "TxTimeEnd": null,
+        "ValidTimeStart": "2022-01-01T00:00:00Z",
+        "ValidTimeEnd": null
+      }
+    ]
   }
-]
\ No newline at end of file
+}
\ No newline at end of file
diff --git a/sql/_testoutput/TestGet_single_set_no_end_not_found_as_of_tx_time_T_before_tx_time_start.json b/sql/_testoutput/TestGet_single_set_no_end_not_found_as_of_tx_time_T_before_tx_time_start.json
index 907645c..8581db9 100644
--- a/sql/_testoutput/TestGet_single_set_no_end_not_found_as_of_tx_time_T_before_tx_time_start.json
+++ b/sql/_testoutput/TestGet_single_set_no_end_not_found_as_of_tx_time_T_before_tx_time_start.json
@@ -1,16 +1,21 @@
-[
-  {
-    "Key": "A",
-    "Value": {
-      "balance": 0,
-      "deleted_at": null,
-      "is_active": false,
-      "type": "checking",
-      "updated_at": "2021-01-01T00:00:00Z"
-    },
-    "TxTimeStart": "2022-01-01T00:00:00Z",
-    "TxTimeEnd": null,
-    "ValidTimeStart": "2022-01-01T00:00:00Z",
-    "ValidTimeEnd": null
+{
+  "TestName": "TestGet/single_set,_no_end:_not_found_-_as_of_tx_time_T_before_tx_time_start",
+  "Histories": {
+    "A": [
+      {
+        "Key": "A",
+        "Value": {
+          "balance": 0,
+          "deleted_at": null,
+          "is_active": false,
+          "type": "checking",
+          "updated_at": "2021-01-01T00:00:00Z"
+        },
+        "TxTimeStart": "2022-01-01T00:00:00Z",
+        "TxTimeEnd": null,
+        "ValidTimeStart": "2022-01-01T00:00:00Z",
+        "ValidTimeEnd": null
+      }
+    ]
   }
-]
\ No newline at end of file
+}
\ No newline at end of file
diff --git a/sql/_testoutput/TestGet_single_set_no_end_not_found_as_of_valid_time_T_before_valid_time_start.json b/sql/_testoutput/TestGet_single_set_no_end_not_found_as_of_valid_time_T_before_valid_time_start.json
index 907645c..0a10344 100644
--- a/sql/_testoutput/TestGet_single_set_no_end_not_found_as_of_valid_time_T_before_valid_time_start.json
+++ b/sql/_testoutput/TestGet_single_set_no_end_not_found_as_of_valid_time_T_before_valid_time_start.json
@@ -1,16 +1,21 @@
-[
-  {
-    "Key": "A",
-    "Value": {
-      "balance": 0,
-      "deleted_at": null,
-      "is_active": false,
-      "type": "checking",
-      "updated_at": "2021-01-01T00:00:00Z"
-    },
-    "TxTimeStart": "2022-01-01T00:00:00Z",
-    "TxTimeEnd": null,
-    "ValidTimeStart": "2022-01-01T00:00:00Z",
-    "ValidTimeEnd": null
+{
+  "TestName": "TestGet/single_set,_no_end:_not_found_-_as_of_valid_time_T_before_valid_time_start",
+  "Histories": {
+    "A": [
+      {
+        "Key": "A",
+        "Value": {
+          "balance": 0,
+          "deleted_at": null,
+          "is_active": false,
+          "type": "checking",
+          "updated_at": "2021-01-01T00:00:00Z"
+        },
+        "TxTimeStart": "2022-01-01T00:00:00Z",
+        "TxTimeEnd": null,
+        "ValidTimeStart": "2022-01-01T00:00:00Z",
+        "ValidTimeEnd": null
+      }
+    ]
   }
-]
\ No newline at end of file
+}
\ No newline at end of file
diff --git a/sql/_testoutput/TestGet_single_set_with_end_found_as_of_valid_and_tx_time_T_in_range.json b/sql/_testoutput/TestGet_single_set_with_end_found_as_of_valid_and_tx_time_T_in_range.json
index 63d3296..a074758 100644
--- a/sql/_testoutput/TestGet_single_set_with_end_found_as_of_valid_and_tx_time_T_in_range.json
+++ b/sql/_testoutput/TestGet_single_set_with_end_found_as_of_valid_and_tx_time_T_in_range.json
@@ -1,16 +1,21 @@
-[
-  {
-    "Key": "A",
-    "Value": {
-      "balance": 0,
-      "deleted_at": null,
-      "is_active": false,
-      "type": "checking",
-      "updated_at": "2021-01-01T00:00:00Z"
-    },
-    "TxTimeStart": "2022-01-01T00:00:00Z",
-    "TxTimeEnd": null,
-    "ValidTimeStart": "2022-01-01T00:00:00Z",
-    "ValidTimeEnd": "2022-01-03T00:00:00Z"
+{
+  "TestName": "TestGet/single_set,_with_end:_found_-_as_of_valid_and_tx_time_T_in_range",
+  "Histories": {
+    "A": [
+      {
+        "Key": "A",
+        "Value": {
+          "balance": 0,
+          "deleted_at": null,
+          "is_active": false,
+          "type": "checking",
+          "updated_at": "2021-01-01T00:00:00Z"
+        },
+        "TxTimeStart": "2022-01-01T00:00:00Z",
+        "TxTimeEnd": null,
+        "ValidTimeStart": "2022-01-01T00:00:00Z",
+        "ValidTimeEnd": "2022-01-03T00:00:00Z"
+      }
+    ]
   }
-]
\ No newline at end of file
+}
\ No newline at end of file
diff --git a/sql/_testoutput/TestGet_single_set_with_end_not_found_as_of_valid_time_T_after_valid_time_end.json b/sql/_testoutput/TestGet_single_set_with_end_not_found_as_of_valid_time_T_after_valid_time_end.json
index 63d3296..306b877 100644
--- a/sql/_testoutput/TestGet_single_set_with_end_not_found_as_of_valid_time_T_after_valid_time_end.json
+++ b/sql/_testoutput/TestGet_single_set_with_end_not_found_as_of_valid_time_T_after_valid_time_end.json
@@ -1,16 +1,21 @@
-[
-  {
-    "Key": "A",
-    "Value": {
-      "balance": 0,
-      "deleted_at": null,
-      "is_active": false,
-      "type": "checking",
-      "updated_at": "2021-01-01T00:00:00Z"
-    },
-    "TxTimeStart": "2022-01-01T00:00:00Z",
-    "TxTimeEnd": null,
-    "ValidTimeStart": "2022-01-01T00:00:00Z",
-    "ValidTimeEnd": "2022-01-03T00:00:00Z"
+{
+  "TestName": "TestGet/single_set,_with_end:_not_found_-_as_of_valid_time_T_after_valid_time_end",
+  "Histories": {
+    "A": [
+      {
+        "Key": "A",
+        "Value": {
+          "balance": 0,
+          "deleted_at": null,
+          "is_active": false,
+          "type": "checking",
+          "updated_at": "2021-01-01T00:00:00Z"
+        },
+        "TxTimeStart": "2022-01-01T00:00:00Z",
+        "TxTimeEnd": null,
+        "ValidTimeStart": "2022-01-01T00:00:00Z",
+        "ValidTimeEnd": "2022-01-03T00:00:00Z"
+      }
+    ]
   }
-]
\ No newline at end of file
+}
\ No newline at end of file
diff --git a/sql/_testoutput/TestGet_single_set_with_end_not_found_as_of_valid_time_T_equal_to_valid_time_end_exclusive_.json b/sql/_testoutput/TestGet_single_set_with_end_not_found_as_of_valid_time_T_equal_to_valid_time_end_exclusive_.json
index 63d3296..2169011 100644
--- a/sql/_testoutput/TestGet_single_set_with_end_not_found_as_of_valid_time_T_equal_to_valid_time_end_exclusive_.json
+++ b/sql/_testoutput/TestGet_single_set_with_end_not_found_as_of_valid_time_T_equal_to_valid_time_end_exclusive_.json
@@ -1,16 +1,21 @@
-[
-  {
-    "Key": "A",
-    "Value": {
-      "balance": 0,
-      "deleted_at": null,
-      "is_active": false,
-      "type": "checking",
-      "updated_at": "2021-01-01T00:00:00Z"
-    },
-    "TxTimeStart": "2022-01-01T00:00:00Z",
-    "TxTimeEnd": null,
-    "ValidTimeStart": "2022-01-01T00:00:00Z",
-    "ValidTimeEnd": "2022-01-03T00:00:00Z"
+{
+  "TestName": "TestGet/single_set,_with_end:_not_found_-_as_of_valid_time_T_equal_to_valid_time_end_(exclusive)",
+  "Histories": {
+    "A": [
+      {
+        "Key": "A",
+        "Value": {
+          "balance": 0,
+          "deleted_at": null,
+          "is_active": false,
+          "type": "checking",
+          "updated_at": "2021-01-01T00:00:00Z"
+        },
+        "TxTimeStart": "2022-01-01T00:00:00Z",
+        "TxTimeEnd": null,
+        "ValidTimeStart": "2022-01-01T00:00:00Z",
+        "ValidTimeEnd": "2022-01-03T00:00:00Z"
+      }
+    ]
   }
-]
\ No newline at end of file
+}
\ No newline at end of file
diff --git a/sql/_testoutput/TestGet_single_set_with_end_not_found_default_as_of_times.json b/sql/_testoutput/TestGet_single_set_with_end_not_found_default_as_of_times.json
index 63d3296..ab2679a 100644
--- a/sql/_testoutput/TestGet_single_set_with_end_not_found_default_as_of_times.json
+++ b/sql/_testoutput/TestGet_single_set_with_end_not_found_default_as_of_times.json
@@ -1,16 +1,21 @@
-[
-  {
-    "Key": "A",
-    "Value": {
-      "balance": 0,
-      "deleted_at": null,
-      "is_active": false,
-      "type": "checking",
-      "updated_at": "2021-01-01T00:00:00Z"
-    },
-    "TxTimeStart": "2022-01-01T00:00:00Z",
-    "TxTimeEnd": null,
-    "ValidTimeStart": "2022-01-01T00:00:00Z",
-    "ValidTimeEnd": "2022-01-03T00:00:00Z"
+{
+  "TestName": "TestGet/single_set,_with_end:_not_found_-_default_as_of_times",
+  "Histories": {
+    "A": [
+      {
+        "Key": "A",
+        "Value": {
+          "balance": 0,
+          "deleted_at": null,
+          "is_active": false,
+          "type": "checking",
+          "updated_at": "2021-01-01T00:00:00Z"
+        },
+        "TxTimeStart": "2022-01-01T00:00:00Z",
+        "TxTimeEnd": null,
+        "ValidTimeStart": "2022-01-01T00:00:00Z",
+        "ValidTimeEnd": "2022-01-03T00:00:00Z"
+      }
+    ]
   }
-]
\ No newline at end of file
+}
\ No newline at end of file
diff --git a/sql/_testoutput/TestHistory_empty_db_not_found.json b/sql/_testoutput/TestHistory_empty_db_not_found.json
index 0637a08..06e09f0 100644
--- a/sql/_testoutput/TestHistory_empty_db_not_found.json
+++ b/sql/_testoutput/TestHistory_empty_db_not_found.json
@@ -1 +1,6 @@
-[]
\ No newline at end of file
+{
+  "TestName": "TestHistory/empty_db:_not_found",
+  "Histories": {
+    "A": []
+  }
+}
\ No newline at end of file
diff --git a/sql/_testoutput/TestHistory_initial_set_and_then_deletion_with_later_valid_time_returns_deleted_versions.json b/sql/_testoutput/TestHistory_initial_set_and_then_deletion_with_later_valid_time_returns_deleted_versions.json
index ffb7d5d..158a7dc 100644
--- a/sql/_testoutput/TestHistory_initial_set_and_then_deletion_with_later_valid_time_returns_deleted_versions.json
+++ b/sql/_testoutput/TestHistory_initial_set_and_then_deletion_with_later_valid_time_returns_deleted_versions.json
@@ -1,30 +1,35 @@
-[
-  {
-    "Key": "A",
-    "Value": {
-      "balance": 0,
-      "deleted_at": null,
-      "is_active": false,
-      "type": "checking",
-      "updated_at": "2021-01-01T00:00:00Z"
-    },
-    "TxTimeStart": "2022-01-03T00:00:00Z",
-    "TxTimeEnd": null,
-    "ValidTimeStart": "2022-01-01T00:00:00Z",
-    "ValidTimeEnd": "2022-01-03T00:00:00Z"
-  },
-  {
-    "Key": "A",
-    "Value": {
-      "balance": 0,
-      "deleted_at": null,
-      "is_active": false,
-      "type": "checking",
-      "updated_at": "2021-01-01T00:00:00Z"
-    },
-    "TxTimeStart": "2022-01-01T00:00:00Z",
-    "TxTimeEnd": "2022-01-03T00:00:00Z",
-    "ValidTimeStart": "2022-01-01T00:00:00Z",
-    "ValidTimeEnd": null
+{
+  "TestName": "TestHistory/initial_set,_and_then_deletion_with_later_valid_time:_returns_\"deleted\"_versions",
+  "Histories": {
+    "A": [
+      {
+        "Key": "A",
+        "Value": {
+          "balance": 0,
+          "deleted_at": null,
+          "is_active": false,
+          "type": "checking",
+          "updated_at": "2021-01-01T00:00:00Z"
+        },
+        "TxTimeStart": "2022-01-03T00:00:00Z",
+        "TxTimeEnd": null,
+        "ValidTimeStart": "2022-01-01T00:00:00Z",
+        "ValidTimeEnd": "2022-01-03T00:00:00Z"
+      },
+      {
+        "Key": "A",
+        "Value": {
+          "balance": 0,
+          "deleted_at": null,
+          "is_active": false,
+          "type": "checking",
+          "updated_at": "2021-01-01T00:00:00Z"
+        },
+        "TxTimeStart": "2022-01-01T00:00:00Z",
+        "TxTimeEnd": "2022-01-03T00:00:00Z",
+        "ValidTimeStart": "2022-01-01T00:00:00Z",
+        "ValidTimeEnd": null
+      }
+    ]
   }
-]
\ No newline at end of file
+}
\ No newline at end of file
diff --git a/sql/_testoutput/TestHistory_initial_set_and_then_set_with_later_valid_time_return_versions_by_descending_end_transaction_time_descending_end_valid_time.json b/sql/_testoutput/TestHistory_initial_set_and_then_set_with_later_valid_time_return_versions_by_descending_end_transaction_time_descending_end_valid_time.json
index 0d5ceec..763042c 100644
--- a/sql/_testoutput/TestHistory_initial_set_and_then_set_with_later_valid_time_return_versions_by_descending_end_transaction_time_descending_end_valid_time.json
+++ b/sql/_testoutput/TestHistory_initial_set_and_then_set_with_later_valid_time_return_versions_by_descending_end_transaction_time_descending_end_valid_time.json
@@ -1,44 +1,49 @@
-[
-  {
-    "Key": "A",
-    "Value": {
-      "balance": 100,
-      "deleted_at": null,
-      "is_active": true,
-      "type": "checking",
-      "updated_at": "2021-01-02T00:00:00Z"
-    },
-    "TxTimeStart": "2022-01-03T00:00:00Z",
-    "TxTimeEnd": null,
-    "ValidTimeStart": "2022-01-03T00:00:00Z",
-    "ValidTimeEnd": null
-  },
-  {
-    "Key": "A",
-    "Value": {
-      "balance": 0,
-      "deleted_at": null,
-      "is_active": false,
-      "type": "checking",
-      "updated_at": "2021-01-01T00:00:00Z"
-    },
-    "TxTimeStart": "2022-01-03T00:00:00Z",
-    "TxTimeEnd": null,
-    "ValidTimeStart": "2022-01-01T00:00:00Z",
-    "ValidTimeEnd": "2022-01-03T00:00:00Z"
-  },
-  {
-    "Key": "A",
-    "Value": {
-      "balance": 0,
-      "deleted_at": null,
-      "is_active": false,
-      "type": "checking",
-      "updated_at": "2021-01-01T00:00:00Z"
-    },
-    "TxTimeStart": "2022-01-01T00:00:00Z",
-    "TxTimeEnd": "2022-01-03T00:00:00Z",
-    "ValidTimeStart": "2022-01-01T00:00:00Z",
-    "ValidTimeEnd": null
+{
+  "TestName": "TestHistory/initial_set,_and_then_set_with_later_valid_time:_return_versions_by_descending_end_transaction_time,_descending_end_valid_time",
+  "Histories": {
+    "A": [
+      {
+        "Key": "A",
+        "Value": {
+          "balance": 100,
+          "deleted_at": null,
+          "is_active": true,
+          "type": "checking",
+          "updated_at": "2021-01-02T00:00:00Z"
+        },
+        "TxTimeStart": "2022-01-03T00:00:00Z",
+        "TxTimeEnd": null,
+        "ValidTimeStart": "2022-01-03T00:00:00Z",
+        "ValidTimeEnd": null
+      },
+      {
+        "Key": "A",
+        "Value": {
+          "balance": 0,
+          "deleted_at": null,
+          "is_active": false,
+          "type": "checking",
+          "updated_at": "2021-01-01T00:00:00Z"
+        },
+        "TxTimeStart": "2022-01-03T00:00:00Z",
+        "TxTimeEnd": null,
+        "ValidTimeStart": "2022-01-01T00:00:00Z",
+        "ValidTimeEnd": "2022-01-03T00:00:00Z"
+      },
+      {
+        "Key": "A",
+        "Value": {
+          "balance": 0,
+          "deleted_at": null,
+          "is_active": false,
+          "type": "checking",
+          "updated_at": "2021-01-01T00:00:00Z"
+        },
+        "TxTimeStart": "2022-01-01T00:00:00Z",
+        "TxTimeEnd": "2022-01-03T00:00:00Z",
+        "ValidTimeStart": "2022-01-01T00:00:00Z",
+        "ValidTimeEnd": null
+      }
+    ]
   }
-]
\ No newline at end of file
+}
\ No newline at end of file
diff --git a/sql/_testoutput/TestHistory_multiple_versions_have_nil_end_transaction_time_return_versions_by_descending_end_transaction_time_descending_end_valid_time.json b/sql/_testoutput/TestHistory_multiple_versions_have_nil_end_transaction_time_return_versions_by_descending_end_transaction_time_descending_end_valid_time.json
index 7e76e4a..1332fdb 100644
--- a/sql/_testoutput/TestHistory_multiple_versions_have_nil_end_transaction_time_return_versions_by_descending_end_transaction_time_descending_end_valid_time.json
+++ b/sql/_testoutput/TestHistory_multiple_versions_have_nil_end_transaction_time_return_versions_by_descending_end_transaction_time_descending_end_valid_time.json
@@ -1,30 +1,35 @@
-[
-  {
-    "Key": "A",
-    "Value": {
-      "balance": 0,
-      "deleted_at": null,
-      "is_active": false,
-      "type": "checking",
-      "updated_at": "2021-01-01T00:00:00Z"
-    },
-    "TxTimeStart": "2022-01-02T00:00:00Z",
-    "TxTimeEnd": null,
-    "ValidTimeStart": "2022-01-03T00:00:00Z",
-    "ValidTimeEnd": "2022-01-04T00:00:00Z"
-  },
-  {
-    "Key": "A",
-    "Value": {
-      "balance": 100,
-      "deleted_at": null,
-      "is_active": true,
-      "type": "checking",
-      "updated_at": "2021-01-02T00:00:00Z"
-    },
-    "TxTimeStart": "2022-01-01T00:00:00Z",
-    "TxTimeEnd": null,
-    "ValidTimeStart": "2022-01-01T00:00:00Z",
-    "ValidTimeEnd": "2022-01-02T00:00:00Z"
+{
+  "TestName": "TestHistory/multiple_versions_have_nil_end_transaction_time:_return_versions_by_descending_end_transaction_time,_descending_end_valid_time",
+  "Histories": {
+    "A": [
+      {
+        "Key": "A",
+        "Value": {
+          "balance": 0,
+          "deleted_at": null,
+          "is_active": false,
+          "type": "checking",
+          "updated_at": "2021-01-01T00:00:00Z"
+        },
+        "TxTimeStart": "2022-01-02T00:00:00Z",
+        "TxTimeEnd": null,
+        "ValidTimeStart": "2022-01-03T00:00:00Z",
+        "ValidTimeEnd": "2022-01-04T00:00:00Z"
+      },
+      {
+        "Key": "A",
+        "Value": {
+          "balance": 100,
+          "deleted_at": null,
+          "is_active": true,
+          "type": "checking",
+          "updated_at": "2021-01-02T00:00:00Z"
+        },
+        "TxTimeStart": "2022-01-01T00:00:00Z",
+        "TxTimeEnd": null,
+        "ValidTimeStart": "2022-01-01T00:00:00Z",
+        "ValidTimeEnd": "2022-01-02T00:00:00Z"
+      }
+    ]
   }
-]
\ No newline at end of file
+}
\ No newline at end of file
diff --git a/sql/_testoutput/TestHistory_single_set_no_end_basic_return_1_version.json b/sql/_testoutput/TestHistory_single_set_no_end_basic_return_1_version.json
index 907645c..b0b2eb0 100644
--- a/sql/_testoutput/TestHistory_single_set_no_end_basic_return_1_version.json
+++ b/sql/_testoutput/TestHistory_single_set_no_end_basic_return_1_version.json
@@ -1,16 +1,21 @@
-[
-  {
-    "Key": "A",
-    "Value": {
-      "balance": 0,
-      "deleted_at": null,
-      "is_active": false,
-      "type": "checking",
-      "updated_at": "2021-01-01T00:00:00Z"
-    },
-    "TxTimeStart": "2022-01-01T00:00:00Z",
-    "TxTimeEnd": null,
-    "ValidTimeStart": "2022-01-01T00:00:00Z",
-    "ValidTimeEnd": null
+{
+  "TestName": "TestHistory/single_set,_no_end:_basic_-_return_1_version",
+  "Histories": {
+    "A": [
+      {
+        "Key": "A",
+        "Value": {
+          "balance": 0,
+          "deleted_at": null,
+          "is_active": false,
+          "type": "checking",
+          "updated_at": "2021-01-01T00:00:00Z"
+        },
+        "TxTimeStart": "2022-01-01T00:00:00Z",
+        "TxTimeEnd": null,
+        "ValidTimeStart": "2022-01-01T00:00:00Z",
+        "ValidTimeEnd": null
+      }
+    ]
   }
-]
\ No newline at end of file
+}
\ No newline at end of file
diff --git a/sql/_testoutput/TestHistory_single_set_with_end_basic_return_1_version.json b/sql/_testoutput/TestHistory_single_set_with_end_basic_return_1_version.json
index 63d3296..4e094f8 100644
--- a/sql/_testoutput/TestHistory_single_set_with_end_basic_return_1_version.json
+++ b/sql/_testoutput/TestHistory_single_set_with_end_basic_return_1_version.json
@@ -1,16 +1,21 @@
-[
-  {
-    "Key": "A",
-    "Value": {
-      "balance": 0,
-      "deleted_at": null,
-      "is_active": false,
-      "type": "checking",
-      "updated_at": "2021-01-01T00:00:00Z"
-    },
-    "TxTimeStart": "2022-01-01T00:00:00Z",
-    "TxTimeEnd": null,
-    "ValidTimeStart": "2022-01-01T00:00:00Z",
-    "ValidTimeEnd": "2022-01-03T00:00:00Z"
+{
+  "TestName": "TestHistory/single_set,_with_end:_basic_-_return_1_version",
+  "Histories": {
+    "A": [
+      {
+        "Key": "A",
+        "Value": {
+          "balance": 0,
+          "deleted_at": null,
+          "is_active": false,
+          "type": "checking",
+          "updated_at": "2021-01-01T00:00:00Z"
+        },
+        "TxTimeStart": "2022-01-01T00:00:00Z",
+        "TxTimeEnd": null,
+        "ValidTimeStart": "2022-01-01T00:00:00Z",
+        "ValidTimeEnd": "2022-01-03T00:00:00Z"
+      }
+    ]
   }
-]
\ No newline at end of file
+}
\ No newline at end of file
diff --git a/sql/_testoutput/TestHistory_version_has_later_transaction_time_start_but_earlier_transaction_time_end_return_versions_by_descending_end_transaction_time_descending_end_valid_time.json b/sql/_testoutput/TestHistory_version_has_later_transaction_time_start_but_earlier_transaction_time_end_return_versions_by_descending_end_transaction_time_descending_end_valid_time.json
index 21694dc..13ad2e7 100644
--- a/sql/_testoutput/TestHistory_version_has_later_transaction_time_start_but_earlier_transaction_time_end_return_versions_by_descending_end_transaction_time_descending_end_valid_time.json
+++ b/sql/_testoutput/TestHistory_version_has_later_transaction_time_start_but_earlier_transaction_time_end_return_versions_by_descending_end_transaction_time_descending_end_valid_time.json
@@ -1,30 +1,35 @@
-[
-  {
-    "Key": "A",
-    "Value": {
-      "balance": 100,
-      "deleted_at": null,
-      "is_active": true,
-      "type": "checking",
-      "updated_at": "2021-01-02T00:00:00Z"
-    },
-    "TxTimeStart": "2022-01-01T00:00:00Z",
-    "TxTimeEnd": null,
-    "ValidTimeStart": "2022-01-01T00:00:00Z",
-    "ValidTimeEnd": "2022-01-02T00:00:00Z"
-  },
-  {
-    "Key": "A",
-    "Value": {
-      "balance": 0,
-      "deleted_at": null,
-      "is_active": false,
-      "type": "checking",
-      "updated_at": "2021-01-01T00:00:00Z"
-    },
-    "TxTimeStart": "2022-01-02T00:00:00Z",
-    "TxTimeEnd": "2022-01-03T00:00:00Z",
-    "ValidTimeStart": "2022-01-03T00:00:00Z",
-    "ValidTimeEnd": "2022-01-04T00:00:00Z"
+{
+  "TestName": "TestHistory/version_has_later_transaction_time_start,_but_earlier_transaction_time_end:_return_versions_by_descending_end_transaction_time,_descending_end_valid_time",
+  "Histories": {
+    "A": [
+      {
+        "Key": "A",
+        "Value": {
+          "balance": 100,
+          "deleted_at": null,
+          "is_active": true,
+          "type": "checking",
+          "updated_at": "2021-01-02T00:00:00Z"
+        },
+        "TxTimeStart": "2022-01-01T00:00:00Z",
+        "TxTimeEnd": null,
+        "ValidTimeStart": "2022-01-01T00:00:00Z",
+        "ValidTimeEnd": "2022-01-02T00:00:00Z"
+      },
+      {
+        "Key": "A",
+        "Value": {
+          "balance": 0,
+          "deleted_at": null,
+          "is_active": false,
+          "type": "checking",
+          "updated_at": "2021-01-01T00:00:00Z"
+        },
+        "TxTimeStart": "2022-01-02T00:00:00Z",
+        "TxTimeEnd": "2022-01-03T00:00:00Z",
+        "ValidTimeStart": "2022-01-03T00:00:00Z",
+        "ValidTimeEnd": "2022-01-04T00:00:00Z"
+      }
+    ]
   }
-]
\ No newline at end of file
+}
\ No newline at end of file
diff --git a/sql/_testoutput/TestList_A_B_values_found_as_of_valid_time.json b/sql/_testoutput/TestList_A_B_values_found_as_of_valid_time.json
index 907645c..25d3f28 100644
--- a/sql/_testoutput/TestList_A_B_values_found_as_of_valid_time.json
+++ b/sql/_testoutput/TestList_A_B_values_found_as_of_valid_time.json
@@ -1,16 +1,21 @@
-[
-  {
-    "Key": "A",
-    "Value": {
-      "balance": 0,
-      "deleted_at": null,
-      "is_active": false,
-      "type": "checking",
-      "updated_at": "2021-01-01T00:00:00Z"
-    },
-    "TxTimeStart": "2022-01-01T00:00:00Z",
-    "TxTimeEnd": null,
-    "ValidTimeStart": "2022-01-01T00:00:00Z",
-    "ValidTimeEnd": null
+{
+  "TestName": "TestList/A,_B_values:_found_-_as_of_valid_time",
+  "Histories": {
+    "A": [
+      {
+        "Key": "A",
+        "Value": {
+          "balance": 0,
+          "deleted_at": null,
+          "is_active": false,
+          "type": "checking",
+          "updated_at": "2021-01-01T00:00:00Z"
+        },
+        "TxTimeStart": "2022-01-01T00:00:00Z",
+        "TxTimeEnd": null,
+        "ValidTimeStart": "2022-01-01T00:00:00Z",
+        "ValidTimeEnd": null
+      }
+    ]
   }
-]
\ No newline at end of file
+}
\ No newline at end of file
diff --git a/sql/_testoutput/TestList_A_B_values_found_default_as_of_times.json b/sql/_testoutput/TestList_A_B_values_found_default_as_of_times.json
index 907645c..d5ac4d5 100644
--- a/sql/_testoutput/TestList_A_B_values_found_default_as_of_times.json
+++ b/sql/_testoutput/TestList_A_B_values_found_default_as_of_times.json
@@ -1,16 +1,21 @@
-[
-  {
-    "Key": "A",
-    "Value": {
-      "balance": 0,
-      "deleted_at": null,
-      "is_active": false,
-      "type": "checking",
-      "updated_at": "2021-01-01T00:00:00Z"
-    },
-    "TxTimeStart": "2022-01-01T00:00:00Z",
-    "TxTimeEnd": null,
-    "ValidTimeStart": "2022-01-01T00:00:00Z",
-    "ValidTimeEnd": null
+{
+  "TestName": "TestList/A,_B_values:_found_-_default_as_of_times",
+  "Histories": {
+    "A": [
+      {
+        "Key": "A",
+        "Value": {
+          "balance": 0,
+          "deleted_at": null,
+          "is_active": false,
+          "type": "checking",
+          "updated_at": "2021-01-01T00:00:00Z"
+        },
+        "TxTimeStart": "2022-01-01T00:00:00Z",
+        "TxTimeEnd": null,
+        "ValidTimeStart": "2022-01-01T00:00:00Z",
+        "ValidTimeEnd": null
+      }
+    ]
   }
-]
\ No newline at end of file
+}
\ No newline at end of file
diff --git a/sql/_testoutput/TestList_A_B_values_not_found_as_of_transaction_time.json b/sql/_testoutput/TestList_A_B_values_not_found_as_of_transaction_time.json
index 907645c..612c7de 100644
--- a/sql/_testoutput/TestList_A_B_values_not_found_as_of_transaction_time.json
+++ b/sql/_testoutput/TestList_A_B_values_not_found_as_of_transaction_time.json
@@ -1,16 +1,21 @@
-[
-  {
-    "Key": "A",
-    "Value": {
-      "balance": 0,
-      "deleted_at": null,
-      "is_active": false,
-      "type": "checking",
-      "updated_at": "2021-01-01T00:00:00Z"
-    },
-    "TxTimeStart": "2022-01-01T00:00:00Z",
-    "TxTimeEnd": null,
-    "ValidTimeStart": "2022-01-01T00:00:00Z",
-    "ValidTimeEnd": null
+{
+  "TestName": "TestList/A,_B_values:_not_found_-_as_of_transaction_time",
+  "Histories": {
+    "A": [
+      {
+        "Key": "A",
+        "Value": {
+          "balance": 0,
+          "deleted_at": null,
+          "is_active": false,
+          "type": "checking",
+          "updated_at": "2021-01-01T00:00:00Z"
+        },
+        "TxTimeStart": "2022-01-01T00:00:00Z",
+        "TxTimeEnd": null,
+        "ValidTimeStart": "2022-01-01T00:00:00Z",
+        "ValidTimeEnd": null
+      }
+    ]
   }
-]
\ No newline at end of file
+}
\ No newline at end of file
diff --git a/sql/_testoutput/TestList_A_values_found_default_as_of_times.json b/sql/_testoutput/TestList_A_values_found_default_as_of_times.json
index 907645c..74bf01e 100644
--- a/sql/_testoutput/TestList_A_values_found_default_as_of_times.json
+++ b/sql/_testoutput/TestList_A_values_found_default_as_of_times.json
@@ -1,16 +1,21 @@
-[
-  {
-    "Key": "A",
-    "Value": {
-      "balance": 0,
-      "deleted_at": null,
-      "is_active": false,
-      "type": "checking",
-      "updated_at": "2021-01-01T00:00:00Z"
-    },
-    "TxTimeStart": "2022-01-01T00:00:00Z",
-    "TxTimeEnd": null,
-    "ValidTimeStart": "2022-01-01T00:00:00Z",
-    "ValidTimeEnd": null
+{
+  "TestName": "TestList/A_values:_found_-_default_as_of_times",
+  "Histories": {
+    "A": [
+      {
+        "Key": "A",
+        "Value": {
+          "balance": 0,
+          "deleted_at": null,
+          "is_active": false,
+          "type": "checking",
+          "updated_at": "2021-01-01T00:00:00Z"
+        },
+        "TxTimeStart": "2022-01-01T00:00:00Z",
+        "TxTimeEnd": null,
+        "ValidTimeStart": "2022-01-01T00:00:00Z",
+        "ValidTimeEnd": null
+      }
+    ]
   }
-]
\ No newline at end of file
+}
\ No newline at end of file
diff --git a/sql/_testoutput/TestList_empty_db_not_found.json b/sql/_testoutput/TestList_empty_db_not_found.json
index 0637a08..e47cc89 100644
--- a/sql/_testoutput/TestList_empty_db_not_found.json
+++ b/sql/_testoutput/TestList_empty_db_not_found.json
@@ -1 +1,6 @@
-[]
\ No newline at end of file
+{
+  "TestName": "TestList/empty_db:_not_found",
+  "Histories": {
+    "A": []
+  }
+}
\ No newline at end of file