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45b10ffd19* Bump lodash from 4.17.15 to 4.17.19 (#52) Bumps [lodash](https://github.com/lodash/lodash) from 4.17.15 to 4.17.19. - [Release notes](https://github.com/lodash/lodash/releases) - [Commits](https://github.com/lodash/lodash/compare/4.17.15...4.17.19) Signed-off-by: dependabot[bot] <support@github.com> Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com> Co-authored-by: Amruta Kawade <65217380+AmrutaKawade@users.noreply.github.com> * Bump @actions/core from 1.1.3 to 1.2.6 (#60) Bumps [@actions/core](https://github.com/actions/toolkit/tree/HEAD/packages/core) from 1.1.3 to 1.2.6. - [Release notes](https://github.com/actions/toolkit/releases) - [Changelog](https://github.com/actions/toolkit/blob/main/packages/core/RELEASES.md) - [Commits](https://github.com/actions/toolkit/commits/HEAD/packages/core) Signed-off-by: dependabot[bot] <support@github.com> Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com> Co-authored-by: Amruta Kawade <65217380+AmrutaKawade@users.noreply.github.com> * updating node_nodules * updated package-lock Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
51 lines
2 KiB
TypeScript
51 lines
2 KiB
TypeScript
/**
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* Copyright (c) Facebook, Inc. and its affiliates. All Rights Reserved.
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*
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* This source code is licensed under the MIT license found in the
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* LICENSE file in the root directory of this source tree.
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*/
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import type { AggregatedResult } from '@jest/test-result';
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import type { Context } from 'jest-runtime';
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import type { Test } from 'jest-runner';
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declare type Cache = {
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[key: string]: [0 | 1, number];
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};
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/**
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* The TestSequencer will ultimately decide which tests should run first.
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* It is responsible for storing and reading from a local cache
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* map that stores context information for a given test, such as how long it
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* took to run during the last run and if it has failed or not.
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* Such information is used on:
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* TestSequencer.sort(tests: Array<Test>)
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* to sort the order of the provided tests.
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*
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* After the results are collected,
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* TestSequencer.cacheResults(tests: Array<Test>, results: AggregatedResult)
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* is called to store/update this information on the cache map.
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*/
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export default class TestSequencer {
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private _cache;
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_getCachePath(context: Context): string;
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_getCache(test: Test): Cache;
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/**
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* Sorting tests is very important because it has a great impact on the
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* user-perceived responsiveness and speed of the test run.
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*
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* If such information is on cache, tests are sorted based on:
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* -> Has it failed during the last run ?
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* Since it's important to provide the most expected feedback as quickly
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* as possible.
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* -> How long it took to run ?
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* Because running long tests first is an effort to minimize worker idle
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* time at the end of a long test run.
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* And if that information is not available they are sorted based on file size
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* since big test files usually take longer to complete.
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*
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* Note that a possible improvement would be to analyse other information
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* from the file other than its size.
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*
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*/
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sort(tests: Array<Test>): Array<Test>;
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cacheResults(tests: Array<Test>, results: AggregatedResult): void;
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}
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export {};
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