diff --git a/test/models/cita_sync/api_test.rb b/test/models/cita_sync/api_test.rb
index da73da7..860054e 100644
--- a/test/models/cita_sync/api_test.rb
+++ b/test/models/cita_sync/api_test.rb
@@ -2,10 +2,7 @@
 
 class CitaSync::ApiTest < ActiveSupport::TestCase
   setup do
-    stub_request(:post, "www.cita.com").
-      with(body: hash_including({ method: "blockNumber" }), headers: { "Content-Type": "application/json" }).
-      to_return(status: 200, body: { jsonrpc: "2.0", id: 83, result: "0x7781" }.to_json)
-
+    stub_request_wrapper("blockNumber", nil, "0x7781")
 
     result = {
       "version" => 0,
@@ -25,10 +22,8 @@ class CitaSync::ApiTest < ActiveSupport::TestCase
         "transactions" => []
       }
     }
-    stub_request(:post, "www.cita.com").
-      with(body: hash_including({ method: "getBlockByNumber", params: ["0x1", true] }), headers: { "Content-Type": "application/json" }).
-      to_return(status: 200, body: { jsonrpc: "2.0", id: 83, result: result }.to_json)
 
+    stub_request_wrapper("getBlockByNumber", ["0x1", true], result)
   end
 
   test "cita_blockNumber" do
diff --git a/test/models/cita_sync/persist_test.rb b/test/models/cita_sync/persist_test.rb
index 89ea0a5..79b770f 100644
--- a/test/models/cita_sync/persist_test.rb
+++ b/test/models/cita_sync/persist_test.rb
@@ -2,9 +2,7 @@
 
 class CitaSync::ApiTest < ActiveSupport::TestCase
   def mock_block_number
-    stub_request(:post, "www.cita.com").
-      with(body: hash_including({ method: "blockNumber" }), headers: { "Content-Type": "application/json" }).
-      to_return(status: 200, body: { jsonrpc: "2.0", id: 83, result: "0x1" }.to_json)
+    stub_request_wrapper("blockNumber", nil, "0x1")
   end
 
   def mock_get_block_by_number_zero
@@ -27,9 +25,7 @@ def mock_get_block_by_number_zero
       }
     }
 
-    stub_request(:post, "www.cita.com").
-      with(body: hash_including({ method: "getBlockByNumber", params: ["0x0", true] }), headers: { "Content-Type": "application/json" }).
-      to_return(status: 200, body: { jsonrpc: "2.0", id: 83, result: result }.to_json)
+    stub_request_wrapper("getBlockByNumber", ["0x0", true], result)
   end
 
   def mock_get_block_by_number_one
@@ -56,9 +52,8 @@ def mock_get_block_by_number_one
         ]
       }
     }
-    stub_request(:post, "www.cita.com").
-      with(body: hash_including({ method: "getBlockByNumber", params: ["0x1", true] }), headers: { "Content-Type": "application/json" }).
-      to_return(status: 200, body: { jsonrpc: "2.0", id: 83, result: result }.to_json)
+
+    stub_request_wrapper("getBlockByNumber", ["0x1", true], result)
   end
 
   def mock_get_transaction
@@ -70,9 +65,7 @@ def mock_get_transaction
       "index": "0x0"
     }
 
-    stub_request(:post, "www.cita.com").
-      with(body: hash_including({ method: "getTransaction", params: ["0xee969624a87a51fc4acc958a3bb83ca32539ee54ebb4215668fe1029eeab59d4"] }), headers: { "Content-Type": "application/json" }).
-      to_return(status: 200, body: { jsonrpc: "2.0", id: 83, result: result }.to_json)
+    stub_request_wrapper("getTransaction", ["0xee969624a87a51fc4acc958a3bb83ca32539ee54ebb4215668fe1029eeab59d4"], result)
   end
 
   def mock_get_meta_data
@@ -94,19 +87,13 @@ def mock_get_meta_data
       "website": "https://www.example.com"
     }
 
-    stub_request(:post, "www.cita.com").
-      with(body: hash_including({ method: "getMetaData", params: ["0x0"] }), headers: { "Content-Type": "application/json" }).
-      to_return(status: 200, body: { jsonrpc: "2.0", id: 83, result: result }.to_json)
+    stub_request_wrapper("getMetaData", ["0x0"], result)
   end
 
   def mock_get_balance
     result = "0x0"
 
-    stub_request(:post, "www.cita.com").
-                                         with(body: hash_including({ method: "getBalance", params: ["0x0dcf740686de1fe9e9faa4b519767a872e1cf69e", "0x0"] }), headers: {
-        "Content-Type": "application/json"
-      }).
-          to_return(status: 200, body: { jsonrpc: "2.0", id: 83, result: result }.to_json)
+    stub_request_wrapper("getBalance", ["0x0dcf740686de1fe9e9faa4b519767a872e1cf69e", "0x0"], result)
   end
 
   setup do
diff --git a/test/test_helper.rb b/test/test_helper.rb
index 3455d35..a9b5078 100644
--- a/test/test_helper.rb
+++ b/test/test_helper.rb
@@ -9,3 +9,20 @@ class ActiveSupport::TestCase
 
   # Add more helper methods to be used by all tests here...
 end
+
+module MockHelper
+  def stub_request_wrapper(method, params, result)
+    include_hash = if params.nil?
+                     { method: method }
+                   else
+                     { method: method, params: params }
+                   end
+    stub_request(:post, "www.cita.com").
+      with(body: hash_including(include_hash), headers: { "Content-Type": "application/json" }).
+      to_return(status: 200, body: { jsonrpc: "2.0", id: 83, result: result }.to_json)
+  end
+end
+
+class ActiveSupport::TestCase
+  include MockHelper
+end