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Add generator function to accepted hook types #10836

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merged 1 commit into from Dec 4, 2020
Merged

Add generator function to accepted hook types #10836

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14 changes: 11 additions & 3 deletions packages/jest-circus/src/utils.ts
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Expand Up @@ -215,17 +215,25 @@ export const callAsyncCircusFn = (
});
};

returnedValue = fn.call(testContext, done);
returnedValue = fn.call<
Circus.TestContext | undefined,
Array<typeof done>,
void | Promise<unknown> | Generator | undefined
>(testContext, done);

return;
}

let returnedValue;
let returnedValue: any;
if (isGeneratorFn(fn)) {
returnedValue = co.wrap(fn).call({});
} else {
try {
returnedValue = fn.call(testContext);
returnedValue = fn.call<
Circus.TestContext | undefined,
[],
void | Promise<unknown> | Generator | undefined
>(testContext);
} catch (error) {
reject(error);
return;
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9 changes: 6 additions & 3 deletions packages/jest-types/src/Global.ts
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Expand Up @@ -7,11 +7,14 @@

import type {CoverageMapData} from 'istanbul-lib-coverage';

export type GeneratorFn = (...args: Array<any>) => Generator;
export type DoneFn = (reason?: string | Error) => void;
export type TestName = string;
export type TestFn = (
export type CallbackFn = (
done?: DoneFn,
) => Promise<void | undefined | unknown> | void | undefined;
) => void | undefined | Promise<void | undefined | unknown>;

export type TestName = string;
export type TestFn = GeneratorFn | CallbackFn;
export type ConcurrentTestFn = (
done?: DoneFn,
) => Promise<void | undefined | unknown>;
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8 changes: 8 additions & 0 deletions test-types/top-level-globals.test.ts
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Expand Up @@ -19,24 +19,32 @@ import {

const fn = () => {};
const asyncFn = async () => {};
const genFn = function* () {};
const timeout = 5;
const testName = 'Test name';
const testTable = [[1, 2]];

// https://jestjs.io/docs/en/api#methods
expectType<void>(afterAll(fn));
expectType<void>(afterAll(asyncFn));
expectType<void>(afterAll(genFn));
expectType<void>(afterAll(fn, timeout));
expectType<void>(afterEach(fn));
expectType<void>(afterEach(asyncFn));
expectType<void>(afterEach(genFn));
expectType<void>(afterEach(fn, timeout));
expectType<void>(beforeAll(fn));
expectType<void>(beforeAll(asyncFn));
expectType<void>(beforeAll(genFn));
expectType<void>(beforeAll(fn, timeout));
expectType<void>(beforeEach(fn));
expectType<void>(beforeEach(asyncFn));
expectType<void>(beforeEach(genFn));
expectType<void>(beforeEach(fn, timeout));

expectType<void>(test(testName, fn));
expectType<void>(test(testName, asyncFn));
expectType<void>(test(testName, genFn));
expectType<void>(test.each(testTable)(testName, fn));
expectType<void>(test.each(testTable)(testName, fn, timeout));
expectType<void>(test.only.each(testTable)(testName, fn));
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