fix formatting and flow typing issues

src/__testUtils__/expectJSON.js

@@ -1,51 +1,18 @@
 import { expect } from 'chai';
 
-import isObjectLike from '../jsutils/isObjectLike';
-import mapValue from '../jsutils/mapValue';
+import toJSONDeep from '../language/__tests__/toJSONDeep';
 
-/**
- * Deeply transforms an arbitrary value to a JSON-safe value by calling toJSON
- * on any nested value which defines it.
- */
-function toJSONDeep(value) {
-  if (!isObjectLike(value)) {
-    return value;
-  }
-
-  if (typeof value.toJSON === 'function') {
-    return value.toJSON();
-  }
-
-  if (Array.isArray(value)) {
-    return value.map(toJSONDeep);
-  }
-
-  return mapValue(value, toJSONDeep);
-}
-
-export default function expectJSON(actual) {
+export default function expectJSON(actual: mixed) {
   const actualJSON = toJSONDeep(actual);
 
   return {
-    toDeepEqual(expected) {
+    toDeepEqual(expected: mixed) {
       const expectedJSON = toJSONDeep(expected);
       expect(actualJSON).to.deep.equal(expectedJSON);
     },
-    toDeepNestedProperty(path, expected) {
+    toDeepNestedProperty(path: string, expected: mixed) {
       const expectedJSON = toJSONDeep(expected);
       expect(actualJSON).to.deep.nested.property(path, expectedJSON);
     },
   };
 }
-
-export function expectToThrowJSON(fn) {
-  function mapException() {
-    try {
-      return fn();
-    } catch (error) {
-      throw toJSONDeep(error);
-    }
-  }
-
-  return expect(mapException).to.throw();
-}

src/execution/__tests__/executor-test.js

@@ -689,7 +689,7 @@ describe('Execute: Handles basic execution tasks', () => {
       errors: [
         {
           message:
-              'Cannot return null for non-nullable field Query.syncNullError.',
+            'Cannot return null for non-nullable field Query.syncNullError.',
           locations: [{ line: 4, column: 9 }],
           path: ['syncNullError'],
         },

src/execution/execute.js

@@ -461,11 +461,11 @@ function executeFields(
       const fieldNodes = fields[responseName];
       const fieldPath = addPath(path, responseName, parentType.name);
       const result = resolveField(
-          exeContext,
-          parentType,
-          sourceValue,
-          fieldNodes,
-          fieldPath,
+        exeContext,
+        parentType,
+        sourceValue,
+        fieldNodes,
+        fieldPath,
       );
 
       if (result !== undefined) {