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chore: migrate jest-mock to TypeScript #7847

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merged 9 commits into from Feb 10, 2019
Merged

chore: migrate jest-mock to TypeScript #7847

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a1fe0bf
chore: migrate jest-mock to TypeScript
thymikee Feb 9, 2019
d928ab9
add changelog
thymikee Feb 10, 2019
1125af3
feedback
thymikee Feb 10, 2019
bab6b97
adjust exports
thymikee Feb 10, 2019
06286d2
add Mocks to @jest/types
thymikee Feb 10, 2019
c8aeeca
fix linter; add no-dupe-class-members: off for TS
thymikee Feb 10, 2019
8c741ab
sorry json
thymikee Feb 10, 2019
da1105c
moar feedback
thymikee Feb 10, 2019
e2f94db
use babel-friendly syntax
thymikee Feb 10, 2019
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28 changes: 14 additions & 14 deletions packages/jest-mock/src/index.ts
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Expand Up @@ -68,21 +68,21 @@ interface MockInstance<T, Y extends unknown[]> {
getMockName(): string;
getMockImplementation(): Function | undefined;
mock: MockFunctionState<T, Y>;
mockClear(): void;
mockReset(): void;
mockClear(): this;
mockReset(): this;
mockRestore(): void;
mockImplementation(fn: (...args: Y) => T): Mock<T, Y>;
mockImplementation(fn: () => Promise<T>): Mock<T, Y>;
mockImplementationOnce(fn: (...args: Y) => T): Mock<T, Y>;
mockImplementationOnce(fn: () => Promise<T>): Mock<T, Y>;
mockName(name: string): Mock<T, Y>;
mockReturnThis(): Mock<T, Y>;
mockReturnValue(value: T): Mock<T, Y>;
mockReturnValueOnce(value: T): Mock<T, Y>;
mockResolvedValue(value: T): Mock<T, Y>;
mockResolvedValueOnce(value: T): Mock<T, Y>;
mockRejectedValue(value: T): Mock<T, Y>;
mockRejectedValueOnce(value: T): Mock<T, Y>;
mockImplementation(fn: (...args: Y) => T): this;
mockImplementation(fn: () => Promise<T>): this;
mockImplementationOnce(fn: (...args: Y) => T): this;
mockImplementationOnce(fn: () => Promise<T>): this;
mockName(name: string): this;
mockReturnThis(): this;
mockReturnValue(value: T): this;
mockReturnValueOnce(value: T): this;
mockResolvedValue(value: T): this;
mockResolvedValueOnce(value: T): this;
mockRejectedValue(value: T): this;
mockRejectedValueOnce(value: T): this;
}

const MOCK_CONSTRUCTOR_NAME = 'mockConstructor';
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7 changes: 3 additions & 4 deletions packages/jest-util/src/FakeTimers.ts
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Expand Up @@ -5,10 +5,7 @@
* LICENSE file in the root directory of this source tree.
*/

// not yet migrated to TS
// import {ModuleMocker} from 'jest-mock';

type ModuleMocker = any;
type ModuleMocker = typeof import('jest-mock');

import {formatStackTrace, StackTraceConfig} from 'jest-message-util';
import setGlobal from './setGlobal';
Expand Down Expand Up @@ -356,8 +353,10 @@ export default class FakeTimers<TimerRef> {

_createMocks() {
const fn = (impl: Function) =>
// @ts-ignore TODO: figure out better typings here
this._moduleMocker.fn().mockImplementation(impl);

// TODO: add better typings; these are mocks, but typed as regular timers
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the two comments are connected. cc @SimenB

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I wanna remove the autospying anyways (I've removed it in the Lolex implementation)

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However, we should be able to infer the type of the function passed in (can do later)

this._fakeTimerAPIs = {
clearImmediate: fn(this._fakeClearImmediate.bind(this)),
clearInterval: fn(this._fakeClearTimer.bind(this)),
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5 changes: 3 additions & 2 deletions packages/jest-util/src/__tests__/fakeTimers.test.ts
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Expand Up @@ -6,9 +6,10 @@
*/

import vm from 'vm';
// @ts-ignore: not yet migrated
import mock, {ModuleMocker} from 'jest-mock';
import mock from 'jest-mock';
import FakeTimers from '../FakeTimers';
// TODO: import this type directly from jest-mock once TS migration is done
type ModuleMocker = typeof mock;

const timerConfig = {
idToRef: (id: number) => id,
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2 changes: 1 addition & 1 deletion packages/jest-util/tsconfig.json
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Expand Up @@ -4,5 +4,5 @@
"rootDir": "src",
"outDir": "build"
},
"references": [{"path": "../jest-types"}]
"references": [{"path": "../jest-types"}, {"path": "../jest-mock"}]
}