961 lines
		
	
	
		
			24 KiB
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
			
		
		
	
	
			961 lines
		
	
	
		
			24 KiB
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
| 'use strict';
 | |
| 
 | |
| function _defineProperty(obj, key, value) {
 | |
|   if (key in obj) {
 | |
|     Object.defineProperty(obj, key, {
 | |
|       value: value,
 | |
|       enumerable: true,
 | |
|       configurable: true,
 | |
|       writable: true
 | |
|     });
 | |
|   } else {
 | |
|     obj[key] = value;
 | |
|   }
 | |
|   return obj;
 | |
| }
 | |
| 
 | |
| /**
 | |
|  * Copyright (c) Facebook, Inc. and its affiliates. All Rights Reserved.
 | |
|  *
 | |
|  * This source code is licensed under the MIT license found in the
 | |
|  * LICENSE file in the root directory of this source tree.
 | |
|  */
 | |
| 
 | |
| /**
 | |
|  * Possible types of a MockFunctionResult.
 | |
|  * 'return': The call completed by returning normally.
 | |
|  * 'throw': The call completed by throwing a value.
 | |
|  * 'incomplete': The call has not completed yet. This is possible if you read
 | |
|  *               the  mock function result from within the mock function itself
 | |
|  *               (or a function called by the mock function).
 | |
|  */
 | |
| 
 | |
| /**
 | |
|  * Represents the result of a single call to a mock function.
 | |
|  */
 | |
| // see https://github.com/Microsoft/TypeScript/issues/25215
 | |
| const MOCK_CONSTRUCTOR_NAME = 'mockConstructor';
 | |
| const FUNCTION_NAME_RESERVED_PATTERN = /[\s!-\/:-@\[-`{-~]/;
 | |
| const FUNCTION_NAME_RESERVED_REPLACE = new RegExp(
 | |
|   FUNCTION_NAME_RESERVED_PATTERN.source,
 | |
|   'g'
 | |
| );
 | |
| const RESERVED_KEYWORDS = new Set([
 | |
|   'arguments',
 | |
|   'await',
 | |
|   'break',
 | |
|   'case',
 | |
|   'catch',
 | |
|   'class',
 | |
|   'const',
 | |
|   'continue',
 | |
|   'debugger',
 | |
|   'default',
 | |
|   'delete',
 | |
|   'do',
 | |
|   'else',
 | |
|   'enum',
 | |
|   'eval',
 | |
|   'export',
 | |
|   'extends',
 | |
|   'false',
 | |
|   'finally',
 | |
|   'for',
 | |
|   'function',
 | |
|   'if',
 | |
|   'implements',
 | |
|   'import',
 | |
|   'in',
 | |
|   'instanceof',
 | |
|   'interface',
 | |
|   'let',
 | |
|   'new',
 | |
|   'null',
 | |
|   'package',
 | |
|   'private',
 | |
|   'protected',
 | |
|   'public',
 | |
|   'return',
 | |
|   'static',
 | |
|   'super',
 | |
|   'switch',
 | |
|   'this',
 | |
|   'throw',
 | |
|   'true',
 | |
|   'try',
 | |
|   'typeof',
 | |
|   'var',
 | |
|   'void',
 | |
|   'while',
 | |
|   'with',
 | |
|   'yield'
 | |
| ]);
 | |
| 
 | |
| function matchArity(fn, length) {
 | |
|   let mockConstructor;
 | |
| 
 | |
|   switch (length) {
 | |
|     case 1:
 | |
|       mockConstructor = function mockConstructor(_a) {
 | |
|         return fn.apply(this, arguments);
 | |
|       };
 | |
| 
 | |
|       break;
 | |
| 
 | |
|     case 2:
 | |
|       mockConstructor = function mockConstructor(_a, _b) {
 | |
|         return fn.apply(this, arguments);
 | |
|       };
 | |
| 
 | |
|       break;
 | |
| 
 | |
|     case 3:
 | |
|       mockConstructor = function mockConstructor(_a, _b, _c) {
 | |
|         return fn.apply(this, arguments);
 | |
|       };
 | |
| 
 | |
|       break;
 | |
| 
 | |
|     case 4:
 | |
|       mockConstructor = function mockConstructor(_a, _b, _c, _d) {
 | |
|         return fn.apply(this, arguments);
 | |
|       };
 | |
| 
 | |
|       break;
 | |
| 
 | |
|     case 5:
 | |
|       mockConstructor = function mockConstructor(_a, _b, _c, _d, _e) {
 | |
|         return fn.apply(this, arguments);
 | |
|       };
 | |
| 
 | |
|       break;
 | |
| 
 | |
|     case 6:
 | |
|       mockConstructor = function mockConstructor(_a, _b, _c, _d, _e, _f) {
 | |
|         return fn.apply(this, arguments);
 | |
|       };
 | |
| 
 | |
|       break;
 | |
| 
 | |
|     case 7:
 | |
|       mockConstructor = function mockConstructor(_a, _b, _c, _d, _e, _f, _g) {
 | |
|         return fn.apply(this, arguments);
 | |
|       };
 | |
| 
 | |
|       break;
 | |
| 
 | |
|     case 8:
 | |
|       mockConstructor = function mockConstructor(
 | |
|         _a,
 | |
|         _b,
 | |
|         _c,
 | |
|         _d,
 | |
|         _e,
 | |
|         _f,
 | |
|         _g,
 | |
|         _h
 | |
|       ) {
 | |
|         return fn.apply(this, arguments);
 | |
|       };
 | |
| 
 | |
|       break;
 | |
| 
 | |
|     case 9:
 | |
|       mockConstructor = function mockConstructor(
 | |
|         _a,
 | |
|         _b,
 | |
|         _c,
 | |
|         _d,
 | |
|         _e,
 | |
|         _f,
 | |
|         _g,
 | |
|         _h,
 | |
|         _i
 | |
|       ) {
 | |
|         return fn.apply(this, arguments);
 | |
|       };
 | |
| 
 | |
|       break;
 | |
| 
 | |
|     default:
 | |
|       mockConstructor = function mockConstructor() {
 | |
|         return fn.apply(this, arguments);
 | |
|       };
 | |
| 
 | |
|       break;
 | |
|   }
 | |
| 
 | |
|   return mockConstructor;
 | |
| }
 | |
| 
 | |
| function getObjectType(value) {
 | |
|   return Object.prototype.toString.apply(value).slice(8, -1);
 | |
| }
 | |
| 
 | |
| function getType(ref) {
 | |
|   const typeName = getObjectType(ref);
 | |
| 
 | |
|   if (
 | |
|     typeName === 'Function' ||
 | |
|     typeName === 'AsyncFunction' ||
 | |
|     typeName === 'GeneratorFunction'
 | |
|   ) {
 | |
|     return 'function';
 | |
|   } else if (Array.isArray(ref)) {
 | |
|     return 'array';
 | |
|   } else if (typeName === 'Object') {
 | |
|     return 'object';
 | |
|   } else if (
 | |
|     typeName === 'Number' ||
 | |
|     typeName === 'String' ||
 | |
|     typeName === 'Boolean' ||
 | |
|     typeName === 'Symbol'
 | |
|   ) {
 | |
|     return 'constant';
 | |
|   } else if (
 | |
|     typeName === 'Map' ||
 | |
|     typeName === 'WeakMap' ||
 | |
|     typeName === 'Set'
 | |
|   ) {
 | |
|     return 'collection';
 | |
|   } else if (typeName === 'RegExp') {
 | |
|     return 'regexp';
 | |
|   } else if (ref === undefined) {
 | |
|     return 'undefined';
 | |
|   } else if (ref === null) {
 | |
|     return 'null';
 | |
|   } else {
 | |
|     return null;
 | |
|   }
 | |
| }
 | |
| 
 | |
| function isReadonlyProp(object, prop) {
 | |
|   if (
 | |
|     prop === 'arguments' ||
 | |
|     prop === 'caller' ||
 | |
|     prop === 'callee' ||
 | |
|     prop === 'name' ||
 | |
|     prop === 'length'
 | |
|   ) {
 | |
|     const typeName = getObjectType(object);
 | |
|     return (
 | |
|       typeName === 'Function' ||
 | |
|       typeName === 'AsyncFunction' ||
 | |
|       typeName === 'GeneratorFunction'
 | |
|     );
 | |
|   }
 | |
| 
 | |
|   if (
 | |
|     prop === 'source' ||
 | |
|     prop === 'global' ||
 | |
|     prop === 'ignoreCase' ||
 | |
|     prop === 'multiline'
 | |
|   ) {
 | |
|     return getObjectType(object) === 'RegExp';
 | |
|   }
 | |
| 
 | |
|   return false;
 | |
| }
 | |
| 
 | |
| class ModuleMockerClass {
 | |
|   /**
 | |
|    * @see README.md
 | |
|    * @param global Global object of the test environment, used to create
 | |
|    * mocks
 | |
|    */
 | |
|   constructor(global) {
 | |
|     _defineProperty(this, '_environmentGlobal', void 0);
 | |
| 
 | |
|     _defineProperty(this, '_mockState', void 0);
 | |
| 
 | |
|     _defineProperty(this, '_mockConfigRegistry', void 0);
 | |
| 
 | |
|     _defineProperty(this, '_spyState', void 0);
 | |
| 
 | |
|     _defineProperty(this, '_invocationCallCounter', void 0);
 | |
| 
 | |
|     _defineProperty(this, 'ModuleMocker', void 0);
 | |
| 
 | |
|     this._environmentGlobal = global;
 | |
|     this._mockState = new WeakMap();
 | |
|     this._mockConfigRegistry = new WeakMap();
 | |
|     this._spyState = new Set();
 | |
|     this.ModuleMocker = ModuleMockerClass;
 | |
|     this._invocationCallCounter = 1;
 | |
|   }
 | |
| 
 | |
|   _getSlots(object) {
 | |
|     if (!object) {
 | |
|       return [];
 | |
|     }
 | |
| 
 | |
|     const slots = new Set();
 | |
|     const EnvObjectProto = this._environmentGlobal.Object.prototype;
 | |
|     const EnvFunctionProto = this._environmentGlobal.Function.prototype;
 | |
|     const EnvRegExpProto = this._environmentGlobal.RegExp.prototype; // Also check the builtins in the current context as they leak through
 | |
|     // core node modules.
 | |
| 
 | |
|     const ObjectProto = Object.prototype;
 | |
|     const FunctionProto = Function.prototype;
 | |
|     const RegExpProto = RegExp.prototype; // Properties of Object.prototype, Function.prototype and RegExp.prototype
 | |
|     // are never reported as slots
 | |
| 
 | |
|     while (
 | |
|       object != null &&
 | |
|       object !== EnvObjectProto &&
 | |
|       object !== EnvFunctionProto &&
 | |
|       object !== EnvRegExpProto &&
 | |
|       object !== ObjectProto &&
 | |
|       object !== FunctionProto &&
 | |
|       object !== RegExpProto
 | |
|     ) {
 | |
|       const ownNames = Object.getOwnPropertyNames(object);
 | |
| 
 | |
|       for (let i = 0; i < ownNames.length; i++) {
 | |
|         const prop = ownNames[i];
 | |
| 
 | |
|         if (!isReadonlyProp(object, prop)) {
 | |
|           const propDesc = Object.getOwnPropertyDescriptor(object, prop); // @ts-ignore Object.__esModule
 | |
| 
 | |
|           if ((propDesc !== undefined && !propDesc.get) || object.__esModule) {
 | |
|             slots.add(prop);
 | |
|           }
 | |
|         }
 | |
|       }
 | |
| 
 | |
|       object = Object.getPrototypeOf(object);
 | |
|     }
 | |
| 
 | |
|     return Array.from(slots);
 | |
|   }
 | |
| 
 | |
|   _ensureMockConfig(f) {
 | |
|     let config = this._mockConfigRegistry.get(f);
 | |
| 
 | |
|     if (!config) {
 | |
|       config = this._defaultMockConfig();
 | |
| 
 | |
|       this._mockConfigRegistry.set(f, config);
 | |
|     }
 | |
| 
 | |
|     return config;
 | |
|   }
 | |
| 
 | |
|   _ensureMockState(f) {
 | |
|     let state = this._mockState.get(f);
 | |
| 
 | |
|     if (!state) {
 | |
|       state = this._defaultMockState();
 | |
| 
 | |
|       this._mockState.set(f, state);
 | |
|     }
 | |
| 
 | |
|     return state;
 | |
|   }
 | |
| 
 | |
|   _defaultMockConfig() {
 | |
|     return {
 | |
|       defaultReturnValue: undefined,
 | |
|       isReturnValueLastSet: false,
 | |
|       mockImpl: undefined,
 | |
|       mockName: 'jest.fn()',
 | |
|       specificMockImpls: [],
 | |
|       specificReturnValues: []
 | |
|     };
 | |
|   }
 | |
| 
 | |
|   _defaultMockState() {
 | |
|     return {
 | |
|       calls: [],
 | |
|       instances: [],
 | |
|       invocationCallOrder: [],
 | |
|       results: []
 | |
|     };
 | |
|   }
 | |
| 
 | |
|   _makeComponent(metadata, restore) {
 | |
|     if (metadata.type === 'object') {
 | |
|       return new this._environmentGlobal.Object();
 | |
|     } else if (metadata.type === 'array') {
 | |
|       return new this._environmentGlobal.Array();
 | |
|     } else if (metadata.type === 'regexp') {
 | |
|       return new this._environmentGlobal.RegExp('');
 | |
|     } else if (
 | |
|       metadata.type === 'constant' ||
 | |
|       metadata.type === 'collection' ||
 | |
|       metadata.type === 'null' ||
 | |
|       metadata.type === 'undefined'
 | |
|     ) {
 | |
|       return metadata.value;
 | |
|     } else if (metadata.type === 'function') {
 | |
|       const prototype =
 | |
|         (metadata.members &&
 | |
|           metadata.members.prototype &&
 | |
|           metadata.members.prototype.members) ||
 | |
|         {};
 | |
| 
 | |
|       const prototypeSlots = this._getSlots(prototype);
 | |
| 
 | |
|       const mocker = this;
 | |
|       const mockConstructor = matchArity(function(...args) {
 | |
|         const mockState = mocker._ensureMockState(f);
 | |
| 
 | |
|         const mockConfig = mocker._ensureMockConfig(f);
 | |
| 
 | |
|         mockState.instances.push(this);
 | |
|         mockState.calls.push(args); // Create and record an "incomplete" mock result immediately upon
 | |
|         // calling rather than waiting for the mock to return. This avoids
 | |
|         // issues caused by recursion where results can be recorded in the
 | |
|         // wrong order.
 | |
| 
 | |
|         const mockResult = {
 | |
|           type: 'incomplete',
 | |
|           value: undefined
 | |
|         };
 | |
|         mockState.results.push(mockResult);
 | |
|         mockState.invocationCallOrder.push(mocker._invocationCallCounter++); // Will be set to the return value of the mock if an error is not thrown
 | |
| 
 | |
|         let finalReturnValue; // Will be set to the error that is thrown by the mock (if it throws)
 | |
| 
 | |
|         let thrownError; // Will be set to true if the mock throws an error. The presence of a
 | |
|         // value in `thrownError` is not a 100% reliable indicator because a
 | |
|         // function could throw a value of undefined.
 | |
| 
 | |
|         let callDidThrowError = false;
 | |
| 
 | |
|         try {
 | |
|           // The bulk of the implementation is wrapped in an immediately
 | |
|           // executed arrow function so the return value of the mock function
 | |
|           // can be easily captured and recorded, despite the many separate
 | |
|           // return points within the logic.
 | |
|           finalReturnValue = (() => {
 | |
|             if (this instanceof f) {
 | |
|               // This is probably being called as a constructor
 | |
|               prototypeSlots.forEach(slot => {
 | |
|                 // Copy prototype methods to the instance to make
 | |
|                 // it easier to interact with mock instance call and
 | |
|                 // return values
 | |
|                 if (prototype[slot].type === 'function') {
 | |
|                   // @ts-ignore no index signature
 | |
|                   const protoImpl = this[slot]; // @ts-ignore no index signature
 | |
| 
 | |
|                   this[slot] = mocker.generateFromMetadata(prototype[slot]); // @ts-ignore no index signature
 | |
| 
 | |
|                   this[slot]._protoImpl = protoImpl;
 | |
|                 }
 | |
|               }); // Run the mock constructor implementation
 | |
| 
 | |
|               const mockImpl = mockConfig.specificMockImpls.length
 | |
|                 ? mockConfig.specificMockImpls.shift()
 | |
|                 : mockConfig.mockImpl;
 | |
|               return mockImpl && mockImpl.apply(this, arguments);
 | |
|             }
 | |
| 
 | |
|             const returnValue = mockConfig.defaultReturnValue; // If return value is last set, either specific or default, i.e.
 | |
|             // mockReturnValueOnce()/mockReturnValue() is called and no
 | |
|             // mockImplementationOnce()/mockImplementation() is called after
 | |
|             // that.
 | |
|             // use the set return value.
 | |
| 
 | |
|             if (mockConfig.specificReturnValues.length) {
 | |
|               return mockConfig.specificReturnValues.shift();
 | |
|             }
 | |
| 
 | |
|             if (mockConfig.isReturnValueLastSet) {
 | |
|               return mockConfig.defaultReturnValue;
 | |
|             } // If mockImplementationOnce()/mockImplementation() is last set,
 | |
|             // or specific return values are used up, use the mock
 | |
|             // implementation.
 | |
| 
 | |
|             let specificMockImpl;
 | |
| 
 | |
|             if (returnValue === undefined) {
 | |
|               specificMockImpl = mockConfig.specificMockImpls.shift();
 | |
| 
 | |
|               if (specificMockImpl === undefined) {
 | |
|                 specificMockImpl = mockConfig.mockImpl;
 | |
|               }
 | |
| 
 | |
|               if (specificMockImpl) {
 | |
|                 return specificMockImpl.apply(this, arguments);
 | |
|               }
 | |
|             } // Otherwise use prototype implementation
 | |
| 
 | |
|             if (returnValue === undefined && f._protoImpl) {
 | |
|               return f._protoImpl.apply(this, arguments);
 | |
|             }
 | |
| 
 | |
|             return returnValue;
 | |
|           })();
 | |
|         } catch (error) {
 | |
|           // Store the thrown error so we can record it, then re-throw it.
 | |
|           thrownError = error;
 | |
|           callDidThrowError = true;
 | |
|           throw error;
 | |
|         } finally {
 | |
|           // Record the result of the function.
 | |
|           // NOTE: Intentionally NOT pushing/indexing into the array of mock
 | |
|           //       results here to avoid corrupting results data if mockClear()
 | |
|           //       is called during the execution of the mock.
 | |
|           mockResult.type = callDidThrowError ? 'throw' : 'return';
 | |
|           mockResult.value = callDidThrowError ? thrownError : finalReturnValue;
 | |
|         }
 | |
| 
 | |
|         return finalReturnValue;
 | |
|       }, metadata.length || 0);
 | |
| 
 | |
|       const f = this._createMockFunction(metadata, mockConstructor);
 | |
| 
 | |
|       f._isMockFunction = true;
 | |
| 
 | |
|       f.getMockImplementation = () => this._ensureMockConfig(f).mockImpl;
 | |
| 
 | |
|       if (typeof restore === 'function') {
 | |
|         this._spyState.add(restore);
 | |
|       }
 | |
| 
 | |
|       this._mockState.set(f, this._defaultMockState());
 | |
| 
 | |
|       this._mockConfigRegistry.set(f, this._defaultMockConfig());
 | |
| 
 | |
|       Object.defineProperty(f, 'mock', {
 | |
|         configurable: false,
 | |
|         enumerable: true,
 | |
|         get: () => this._ensureMockState(f),
 | |
|         set: val => this._mockState.set(f, val)
 | |
|       });
 | |
| 
 | |
|       f.mockClear = () => {
 | |
|         this._mockState.delete(f);
 | |
| 
 | |
|         return f;
 | |
|       };
 | |
| 
 | |
|       f.mockReset = () => {
 | |
|         f.mockClear();
 | |
| 
 | |
|         this._mockConfigRegistry.delete(f);
 | |
| 
 | |
|         return f;
 | |
|       };
 | |
| 
 | |
|       f.mockRestore = () => {
 | |
|         f.mockReset();
 | |
|         return restore ? restore() : undefined;
 | |
|       };
 | |
| 
 | |
|       f.mockReturnValueOnce = value => {
 | |
|         // next function call will return this value or default return value
 | |
|         const mockConfig = this._ensureMockConfig(f);
 | |
| 
 | |
|         mockConfig.specificReturnValues.push(value);
 | |
|         return f;
 | |
|       };
 | |
| 
 | |
|       f.mockResolvedValueOnce = value =>
 | |
|         f.mockImplementationOnce(() => Promise.resolve(value));
 | |
| 
 | |
|       f.mockRejectedValueOnce = value =>
 | |
|         f.mockImplementationOnce(() => Promise.reject(value));
 | |
| 
 | |
|       f.mockReturnValue = value => {
 | |
|         // next function call will return specified return value or this one
 | |
|         const mockConfig = this._ensureMockConfig(f);
 | |
| 
 | |
|         mockConfig.isReturnValueLastSet = true;
 | |
|         mockConfig.defaultReturnValue = value;
 | |
|         return f;
 | |
|       };
 | |
| 
 | |
|       f.mockResolvedValue = value =>
 | |
|         f.mockImplementation(() => Promise.resolve(value));
 | |
| 
 | |
|       f.mockRejectedValue = value =>
 | |
|         f.mockImplementation(() => Promise.reject(value));
 | |
| 
 | |
|       f.mockImplementationOnce = fn => {
 | |
|         // next function call will use this mock implementation return value
 | |
|         // or default mock implementation return value
 | |
|         const mockConfig = this._ensureMockConfig(f);
 | |
| 
 | |
|         mockConfig.isReturnValueLastSet = false;
 | |
|         mockConfig.specificMockImpls.push(fn);
 | |
|         return f;
 | |
|       };
 | |
| 
 | |
|       f.mockImplementation = fn => {
 | |
|         // next function call will use mock implementation return value
 | |
|         const mockConfig = this._ensureMockConfig(f);
 | |
| 
 | |
|         mockConfig.isReturnValueLastSet = false;
 | |
|         mockConfig.defaultReturnValue = undefined;
 | |
|         mockConfig.mockImpl = fn;
 | |
|         return f;
 | |
|       };
 | |
| 
 | |
|       f.mockReturnThis = () =>
 | |
|         f.mockImplementation(function() {
 | |
|           return this;
 | |
|         });
 | |
| 
 | |
|       f.mockName = name => {
 | |
|         if (name) {
 | |
|           const mockConfig = this._ensureMockConfig(f);
 | |
| 
 | |
|           mockConfig.mockName = name;
 | |
|         }
 | |
| 
 | |
|         return f;
 | |
|       };
 | |
| 
 | |
|       f.getMockName = () => {
 | |
|         const mockConfig = this._ensureMockConfig(f);
 | |
| 
 | |
|         return mockConfig.mockName || 'jest.fn()';
 | |
|       };
 | |
| 
 | |
|       if (metadata.mockImpl) {
 | |
|         f.mockImplementation(metadata.mockImpl);
 | |
|       }
 | |
| 
 | |
|       return f;
 | |
|     } else {
 | |
|       const unknownType = metadata.type || 'undefined type';
 | |
|       throw new Error('Unrecognized type ' + unknownType);
 | |
|     }
 | |
|   }
 | |
| 
 | |
|   _createMockFunction(metadata, mockConstructor) {
 | |
|     let name = metadata.name;
 | |
| 
 | |
|     if (!name) {
 | |
|       return mockConstructor;
 | |
|     } // Preserve `name` property of mocked function.
 | |
| 
 | |
|     const boundFunctionPrefix = 'bound ';
 | |
|     let bindCall = ''; // if-do-while for perf reasons. The common case is for the if to fail.
 | |
| 
 | |
|     if (name && name.startsWith(boundFunctionPrefix)) {
 | |
|       do {
 | |
|         name = name.substring(boundFunctionPrefix.length); // Call bind() just to alter the function name.
 | |
| 
 | |
|         bindCall = '.bind(null)';
 | |
|       } while (name && name.startsWith(boundFunctionPrefix));
 | |
|     } // Special case functions named `mockConstructor` to guard for infinite
 | |
|     // loops.
 | |
| 
 | |
|     if (name === MOCK_CONSTRUCTOR_NAME) {
 | |
|       return mockConstructor;
 | |
|     }
 | |
| 
 | |
|     if (
 | |
|       // It's a syntax error to define functions with a reserved keyword
 | |
|       // as name.
 | |
|       RESERVED_KEYWORDS.has(name) || // It's also a syntax error to define functions with a name that starts with a number
 | |
|       /^\d/.test(name)
 | |
|     ) {
 | |
|       name = '$' + name;
 | |
|     } // It's also a syntax error to define a function with a reserved character
 | |
|     // as part of it's name.
 | |
| 
 | |
|     if (FUNCTION_NAME_RESERVED_PATTERN.test(name)) {
 | |
|       name = name.replace(FUNCTION_NAME_RESERVED_REPLACE, '$');
 | |
|     }
 | |
| 
 | |
|     const body =
 | |
|       'return function ' +
 | |
|       name +
 | |
|       '() {' +
 | |
|       'return ' +
 | |
|       MOCK_CONSTRUCTOR_NAME +
 | |
|       '.apply(this,arguments);' +
 | |
|       '}' +
 | |
|       bindCall;
 | |
|     const createConstructor = new this._environmentGlobal.Function(
 | |
|       MOCK_CONSTRUCTOR_NAME,
 | |
|       body
 | |
|     );
 | |
|     return createConstructor(mockConstructor);
 | |
|   }
 | |
| 
 | |
|   _generateMock(metadata, callbacks, refs) {
 | |
|     // metadata not compatible but it's the same type, maybe problem with
 | |
|     // overloading of _makeComponent and not _generateMock?
 | |
|     // @ts-ignore
 | |
|     const mock = this._makeComponent(metadata);
 | |
| 
 | |
|     if (metadata.refID != null) {
 | |
|       refs[metadata.refID] = mock;
 | |
|     }
 | |
| 
 | |
|     this._getSlots(metadata.members).forEach(slot => {
 | |
|       const slotMetadata = (metadata.members && metadata.members[slot]) || {};
 | |
| 
 | |
|       if (slotMetadata.ref != null) {
 | |
|         callbacks.push(
 | |
|           (function(ref) {
 | |
|             return () => (mock[slot] = refs[ref]);
 | |
|           })(slotMetadata.ref)
 | |
|         );
 | |
|       } else {
 | |
|         mock[slot] = this._generateMock(slotMetadata, callbacks, refs);
 | |
|       }
 | |
|     });
 | |
| 
 | |
|     if (
 | |
|       metadata.type !== 'undefined' &&
 | |
|       metadata.type !== 'null' &&
 | |
|       mock.prototype &&
 | |
|       typeof mock.prototype === 'object'
 | |
|     ) {
 | |
|       mock.prototype.constructor = mock;
 | |
|     }
 | |
| 
 | |
|     return mock;
 | |
|   }
 | |
|   /**
 | |
|    * @see README.md
 | |
|    * @param _metadata Metadata for the mock in the schema returned by the
 | |
|    * getMetadata method of this module.
 | |
|    */
 | |
| 
 | |
|   generateFromMetadata(_metadata) {
 | |
|     const callbacks = [];
 | |
|     const refs = {};
 | |
| 
 | |
|     const mock = this._generateMock(_metadata, callbacks, refs);
 | |
| 
 | |
|     callbacks.forEach(setter => setter());
 | |
|     return mock;
 | |
|   }
 | |
|   /**
 | |
|    * @see README.md
 | |
|    * @param component The component for which to retrieve metadata.
 | |
|    */
 | |
| 
 | |
|   getMetadata(component, _refs) {
 | |
|     const refs = _refs || new Map();
 | |
|     const ref = refs.get(component);
 | |
| 
 | |
|     if (ref != null) {
 | |
|       return {
 | |
|         ref
 | |
|       };
 | |
|     }
 | |
| 
 | |
|     const type = getType(component);
 | |
| 
 | |
|     if (!type) {
 | |
|       return null;
 | |
|     }
 | |
| 
 | |
|     const metadata = {
 | |
|       type
 | |
|     };
 | |
| 
 | |
|     if (
 | |
|       type === 'constant' ||
 | |
|       type === 'collection' ||
 | |
|       type === 'undefined' ||
 | |
|       type === 'null'
 | |
|     ) {
 | |
|       metadata.value = component;
 | |
|       return metadata;
 | |
|     } else if (type === 'function') {
 | |
|       // @ts-ignore this is a function so it has a name
 | |
|       metadata.name = component.name; // @ts-ignore may be a mock
 | |
| 
 | |
|       if (component._isMockFunction === true) {
 | |
|         // @ts-ignore may be a mock
 | |
|         metadata.mockImpl = component.getMockImplementation();
 | |
|       }
 | |
|     }
 | |
| 
 | |
|     metadata.refID = refs.size;
 | |
|     refs.set(component, metadata.refID);
 | |
|     let members = null; // Leave arrays alone
 | |
| 
 | |
|     if (type !== 'array') {
 | |
|       this._getSlots(component).forEach(slot => {
 | |
|         if (
 | |
|           type === 'function' && // @ts-ignore may be a mock
 | |
|           component._isMockFunction === true &&
 | |
|           slot.match(/^mock/)
 | |
|         ) {
 | |
|           return;
 | |
|         } // @ts-ignore no index signature
 | |
| 
 | |
|         const slotMetadata = this.getMetadata(component[slot], refs);
 | |
| 
 | |
|         if (slotMetadata) {
 | |
|           if (!members) {
 | |
|             members = {};
 | |
|           }
 | |
| 
 | |
|           members[slot] = slotMetadata;
 | |
|         }
 | |
|       });
 | |
|     }
 | |
| 
 | |
|     if (members) {
 | |
|       metadata.members = members;
 | |
|     }
 | |
| 
 | |
|     return metadata;
 | |
|   }
 | |
| 
 | |
|   isMockFunction(fn) {
 | |
|     return !!fn && fn._isMockFunction === true;
 | |
|   }
 | |
| 
 | |
|   fn(implementation) {
 | |
|     const length = implementation ? implementation.length : 0;
 | |
| 
 | |
|     const fn = this._makeComponent({
 | |
|       length,
 | |
|       type: 'function'
 | |
|     });
 | |
| 
 | |
|     if (implementation) {
 | |
|       fn.mockImplementation(implementation);
 | |
|     }
 | |
| 
 | |
|     return fn;
 | |
|   }
 | |
| 
 | |
|   spyOn(object, methodName, accessType) {
 | |
|     if (accessType) {
 | |
|       return this._spyOnProperty(object, methodName, accessType);
 | |
|     }
 | |
| 
 | |
|     if (typeof object !== 'object' && typeof object !== 'function') {
 | |
|       throw new Error(
 | |
|         'Cannot spyOn on a primitive value; ' + this._typeOf(object) + ' given'
 | |
|       );
 | |
|     }
 | |
| 
 | |
|     const original = object[methodName];
 | |
| 
 | |
|     if (!this.isMockFunction(original)) {
 | |
|       if (typeof original !== 'function') {
 | |
|         throw new Error(
 | |
|           'Cannot spy the ' +
 | |
|             methodName +
 | |
|             ' property because it is not a function; ' +
 | |
|             this._typeOf(original) +
 | |
|             ' given instead'
 | |
|         );
 | |
|       } // @ts-ignore overriding original method with a Mock
 | |
| 
 | |
|       object[methodName] = this._makeComponent(
 | |
|         {
 | |
|           type: 'function'
 | |
|         },
 | |
|         () => {
 | |
|           object[methodName] = original;
 | |
|         }
 | |
|       ); // @ts-ignore original method is now a Mock
 | |
| 
 | |
|       object[methodName].mockImplementation(function() {
 | |
|         return original.apply(this, arguments);
 | |
|       });
 | |
|     }
 | |
| 
 | |
|     return object[methodName];
 | |
|   }
 | |
| 
 | |
|   _spyOnProperty(obj, propertyName, accessType = 'get') {
 | |
|     if (typeof obj !== 'object' && typeof obj !== 'function') {
 | |
|       throw new Error(
 | |
|         'Cannot spyOn on a primitive value; ' + this._typeOf(obj) + ' given'
 | |
|       );
 | |
|     }
 | |
| 
 | |
|     if (!obj) {
 | |
|       throw new Error(
 | |
|         'spyOn could not find an object to spy upon for ' + propertyName + ''
 | |
|       );
 | |
|     }
 | |
| 
 | |
|     if (!propertyName) {
 | |
|       throw new Error('No property name supplied');
 | |
|     }
 | |
| 
 | |
|     let descriptor = Object.getOwnPropertyDescriptor(obj, propertyName);
 | |
|     let proto = Object.getPrototypeOf(obj);
 | |
| 
 | |
|     while (!descriptor && proto !== null) {
 | |
|       descriptor = Object.getOwnPropertyDescriptor(proto, propertyName);
 | |
|       proto = Object.getPrototypeOf(proto);
 | |
|     }
 | |
| 
 | |
|     if (!descriptor) {
 | |
|       throw new Error(propertyName + ' property does not exist');
 | |
|     }
 | |
| 
 | |
|     if (!descriptor.configurable) {
 | |
|       throw new Error(propertyName + ' is not declared configurable');
 | |
|     }
 | |
| 
 | |
|     if (!descriptor[accessType]) {
 | |
|       throw new Error(
 | |
|         'Property ' + propertyName + ' does not have access type ' + accessType
 | |
|       );
 | |
|     }
 | |
| 
 | |
|     const original = descriptor[accessType];
 | |
| 
 | |
|     if (!this.isMockFunction(original)) {
 | |
|       if (typeof original !== 'function') {
 | |
|         throw new Error(
 | |
|           'Cannot spy the ' +
 | |
|             propertyName +
 | |
|             ' property because it is not a function; ' +
 | |
|             this._typeOf(original) +
 | |
|             ' given instead'
 | |
|         );
 | |
|       }
 | |
| 
 | |
|       descriptor[accessType] = this._makeComponent(
 | |
|         {
 | |
|           type: 'function'
 | |
|         },
 | |
|         () => {
 | |
|           descriptor[accessType] = original;
 | |
|           Object.defineProperty(obj, propertyName, descriptor);
 | |
|         }
 | |
|       );
 | |
|       descriptor[accessType].mockImplementation(function() {
 | |
|         // @ts-ignore
 | |
|         return original.apply(this, arguments);
 | |
|       });
 | |
|     }
 | |
| 
 | |
|     Object.defineProperty(obj, propertyName, descriptor);
 | |
|     return descriptor[accessType];
 | |
|   }
 | |
| 
 | |
|   clearAllMocks() {
 | |
|     this._mockState = new WeakMap();
 | |
|   }
 | |
| 
 | |
|   resetAllMocks() {
 | |
|     this._mockConfigRegistry = new WeakMap();
 | |
|     this._mockState = new WeakMap();
 | |
|   }
 | |
| 
 | |
|   restoreAllMocks() {
 | |
|     this._spyState.forEach(restore => restore());
 | |
| 
 | |
|     this._spyState = new Set();
 | |
|   }
 | |
| 
 | |
|   _typeOf(value) {
 | |
|     return value == null ? '' + value : typeof value;
 | |
|   }
 | |
| }
 | |
| /* eslint-disable-next-line no-redeclare */
 | |
| 
 | |
| const JestMock = new ModuleMockerClass(global);
 | |
| module.exports = JestMock;
 |