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- //#region src/index.d.ts
- /**
- * Copyright (c) Meta Platforms, Inc. and affiliates.
- *
- * This source code is licensed under the MIT license found in the
- * LICENSE file in the root directory of this source tree.
- */
- /// <reference lib="ESNext.Disposable" preserve="true" />
- type MockMetadataType = 'object' | 'array' | 'regexp' | 'function' | 'constant' | 'collection' | 'null' | 'undefined';
- type MockMetadata<T, MetadataType = MockMetadataType> = {
- ref?: number;
- members?: Record<string, MockMetadata<T>>;
- mockImpl?: T;
- name?: string;
- refID?: number;
- type?: MetadataType;
- value?: T;
- length?: number;
- };
- type ClassLike = new (...args: any) => any;
- type FunctionLike = (...args: any) => any;
- type ConstructorLikeKeys<T> = keyof { [K in keyof T as Required<T>[K] extends ClassLike ? K : never]: T[K] };
- type MethodLikeKeys<T> = keyof { [K in keyof T as Required<T>[K] extends FunctionLike ? K : never]: T[K] };
- type PropertyLikeKeys<T> = Exclude<keyof T, ConstructorLikeKeys<T> | MethodLikeKeys<T>>;
- type MockedClass<T extends ClassLike> = MockInstance<(...args: ConstructorParameters<T>) => Mocked<InstanceType<T>>> & MockedObject<T>;
- type MockedFunction<T extends FunctionLike> = MockInstance<T> & MockedObject<T>;
- type MockedFunctionShallow<T extends FunctionLike> = MockInstance<T> & T;
- type MockedObject<T extends object> = { [K in keyof T]: T[K] extends ClassLike ? MockedClass<T[K]> : T[K] extends FunctionLike ? MockedFunction<T[K]> : T[K] extends object ? MockedObject<T[K]> : T[K] } & T;
- type MockedObjectShallow<T extends object> = { [K in keyof T]: T[K] extends ClassLike ? MockedClass<T[K]> : T[K] extends FunctionLike ? MockedFunctionShallow<T[K]> : T[K] } & T;
- type Mocked<T> = T extends ClassLike ? MockedClass<T> : T extends FunctionLike ? MockedFunction<T> : T extends object ? MockedObject<T> : T;
- type MockedShallow<T> = T extends ClassLike ? MockedClass<T> : T extends FunctionLike ? MockedFunctionShallow<T> : T extends object ? MockedObjectShallow<T> : T;
- type UnknownFunction = (...args: Array<unknown>) => unknown;
- type UnknownClass = new (...args: Array<unknown>) => unknown;
- type SpiedClass<T extends ClassLike = UnknownClass> = MockInstance<(...args: ConstructorParameters<T>) => InstanceType<T>>;
- type SpiedFunction<T extends FunctionLike = UnknownFunction> = MockInstance<(...args: Parameters<T>) => ReturnType<T>>;
- type SpiedGetter<T> = MockInstance<() => T>;
- type SpiedSetter<T> = MockInstance<(arg: T) => void>;
- type Spied<T extends ClassLike | FunctionLike> = T extends ClassLike ? SpiedClass<T> : T extends FunctionLike ? SpiedFunction<T> : never;
- /**
- * All what the internal typings need is to be sure that we have any-function.
- * `FunctionLike` type ensures that and helps to constrain the type as well.
- * The default of `UnknownFunction` makes sure that `any`s do not leak to the
- * user side. For instance, calling `fn()` without implementation will return
- * a mock of `(...args: Array<unknown>) => unknown` type. If implementation
- * is provided, its typings are inferred correctly.
- */
- interface Mock<T extends FunctionLike = UnknownFunction> extends Function, MockInstance<T> {
- new (...args: Parameters<T>): ReturnType<T>;
- (...args: Parameters<T>): ReturnType<T>;
- }
- type ResolveType<T extends FunctionLike> = ReturnType<T> extends PromiseLike<infer U> ? U : never;
- type RejectType<T extends FunctionLike> = ReturnType<T> extends PromiseLike<any> ? unknown : never;
- interface MockInstance<T extends FunctionLike = UnknownFunction> extends Disposable {
- _isMockFunction: true;
- _protoImpl: Function;
- getMockImplementation(): T | undefined;
- getMockName(): string;
- mock: MockFunctionState<T>;
- mockClear(): this;
- mockReset(): this;
- mockRestore(): void;
- mockImplementation(fn: T): this;
- mockImplementationOnce(fn: T): this;
- withImplementation(fn: T, callback: () => Promise<unknown>): Promise<void>;
- withImplementation(fn: T, callback: () => void): void;
- mockName(name: string): this;
- mockReturnThis(): this;
- mockReturnValue(value: ReturnType<T>): this;
- mockReturnValueOnce(value: ReturnType<T>): this;
- mockResolvedValue(value: ResolveType<T>): this;
- mockResolvedValueOnce(value: ResolveType<T>): this;
- mockRejectedValue(value: RejectType<T>): this;
- mockRejectedValueOnce(value: RejectType<T>): this;
- }
- interface Replaced<T = unknown> {
- /**
- * Restore property to its original value known at the time of mocking.
- */
- restore(): void;
- /**
- * Change the value of the property.
- */
- replaceValue(value: T): this;
- }
- type MockFunctionResultIncomplete = {
- type: 'incomplete';
- /**
- * Result of a single call to a mock function that has not yet completed.
- * This occurs if you test the result from within the mock function itself,
- * or from within a function that was called by the mock.
- */
- value: undefined;
- };
- type MockFunctionResultReturn<T extends FunctionLike = UnknownFunction> = {
- type: 'return';
- /**
- * Result of a single call to a mock function that returned.
- */
- value: ReturnType<T>;
- };
- type MockFunctionResultThrow = {
- type: 'throw';
- /**
- * Result of a single call to a mock function that threw.
- */
- value: unknown;
- };
- type MockFunctionResult<T extends FunctionLike = UnknownFunction> = MockFunctionResultIncomplete | MockFunctionResultReturn<T> | MockFunctionResultThrow;
- type MockFunctionState<T extends FunctionLike = UnknownFunction> = {
- /**
- * List of the call arguments of all calls that have been made to the mock.
- */
- calls: Array<Parameters<T>>;
- /**
- * List of all the object instances that have been instantiated from the mock.
- */
- instances: Array<ReturnType<T>>;
- /**
- * List of all the function contexts that have been applied to calls to the mock.
- */
- contexts: Array<ThisParameterType<T>>;
- /**
- * List of the call order indexes of the mock. Jest is indexing the order of
- * invocations of all mocks in a test file. The index is starting with `1`.
- */
- invocationCallOrder: Array<number>;
- /**
- * List of the call arguments of the last call that was made to the mock.
- * If the function was not called, it will return `undefined`.
- */
- lastCall?: Parameters<T>;
- /**
- * List of the results of all calls that have been made to the mock.
- */
- results: Array<MockFunctionResult<T>>;
- };
- declare class ModuleMocker {
- private readonly _environmentGlobal;
- private _mockState;
- private _mockConfigRegistry;
- private _spyState;
- private _invocationCallCounter;
- /**
- * @see README.md
- * @param global Global object of the test environment, used to create
- * mocks
- */
- constructor(global: typeof globalThis);
- private _getSlots;
- private _ensureMockConfig;
- private _ensureMockState;
- private _defaultMockConfig;
- private _defaultMockState;
- private _makeComponent;
- private _createMockFunction;
- private _generateMock;
- /**
- * Check whether the given property of an object has been already replaced.
- */
- private _findReplacedProperty;
- /**
- * @see README.md
- * @param metadata Metadata for the mock in the schema returned by the
- * getMetadata method of this module.
- */
- generateFromMetadata<T>(metadata: MockMetadata<T>): Mocked<T>;
- /**
- * @see README.md
- * @param component The component for which to retrieve metadata.
- */
- getMetadata<T = unknown>(component: T, _refs?: Map<T, number>): MockMetadata<T> | null;
- isMockFunction<T extends FunctionLike = UnknownFunction>(fn: MockInstance<T>): fn is MockInstance<T>;
- isMockFunction<P extends Array<unknown>, R>(fn: (...args: P) => R): fn is Mock<(...args: P) => R>;
- isMockFunction(fn: unknown): fn is Mock<UnknownFunction>;
- fn<T extends FunctionLike = UnknownFunction>(implementation?: T): Mock<T>;
- spyOn<T extends object, K extends PropertyLikeKeys<T>, V extends Required<T>[K], A extends 'get' | 'set'>(object: T, methodKey: K, accessType: A): A extends 'get' ? SpiedGetter<V> : A extends 'set' ? SpiedSetter<V> : never;
- spyOn<T extends object, K extends ConstructorLikeKeys<T> | MethodLikeKeys<T>, V extends Required<T>[K]>(object: T, methodKey: K): V extends ClassLike | FunctionLike ? Spied<V> : never;
- private _spyOnProperty;
- replaceProperty<T extends object, K extends keyof T>(object: T, propertyKey: K, value: T[K]): Replaced<T[K]>;
- clearAllMocks(): void;
- resetAllMocks(): void;
- restoreAllMocks(): void;
- private _typeOf;
- mocked<T extends object>(source: T, options?: {
- shallow: false;
- }): Mocked<T>;
- mocked<T extends object>(source: T, options: {
- shallow: true;
- }): MockedShallow<T>;
- }
- declare const fn: <T extends FunctionLike = UnknownFunction>(implementation?: T) => Mock<T>;
- declare const spyOn: {
- <T extends object, K extends PropertyLikeKeys<T>, V extends Required<T>[K], A extends "get" | "set">(object: T, methodKey: K, accessType: A): A extends "get" ? SpiedGetter<V> : A extends "set" ? SpiedSetter<V> : never;
- <T extends object, K extends ConstructorLikeKeys<T> | MethodLikeKeys<T>, V extends Required<T>[K]>(object: T, methodKey: K): V extends ClassLike | FunctionLike ? Spied<V> : never;
- };
- declare const mocked: {
- <T extends object>(source: T, options?: {
- shallow: false;
- }): Mocked<T>;
- <T extends object>(source: T, options: {
- shallow: true;
- }): MockedShallow<T>;
- };
- declare const replaceProperty: <T extends object, K extends keyof T>(object: T, propertyKey: K, value: T[K]) => Replaced<T[K]>;
- //#endregion
- export { ClassLike, ConstructorLikeKeys, FunctionLike, MethodLikeKeys, Mock, MockInstance, MockMetadata, MockMetadataType, Mocked, MockedClass, MockedFunction, MockedObject, MockedShallow, ModuleMocker, PropertyLikeKeys, Replaced, Spied, SpiedClass, SpiedFunction, SpiedGetter, SpiedSetter, UnknownClass, UnknownFunction, fn, mocked, replaceProperty, spyOn };
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