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feat: implement
--shard option (#12546)
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,86 @@ | ||
| /** | ||
| * 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. | ||
| */ | ||
| import * as path from 'path'; | ||
| import runJest from '../runJest'; | ||
|
|
||
| test('--shard=1/1', () => { | ||
| const result = runJest('shard', ['--shard=1/1', '--listTests']); | ||
|
|
||
| const paths = result.stdout | ||
| .split('\n') | ||
| .filter(Boolean) | ||
| .map(file => path.basename(file)) | ||
| .sort(); | ||
|
|
||
| expect(paths).toEqual(['1.test.js', '2.test.js', '3.test.js']); | ||
| }); | ||
|
|
||
| test('--shard=1/2', () => { | ||
| const result = runJest('shard', ['--shard=1/2', '--listTests']); | ||
|
|
||
| const paths = result.stdout | ||
| .split('\n') | ||
| .filter(Boolean) | ||
| .map(file => path.basename(file)) | ||
| .sort(); | ||
|
|
||
| expect(paths).toEqual(['1.test.js', '3.test.js']); | ||
| }); | ||
|
|
||
| test('--shard=2/2', () => { | ||
| const result = runJest('shard', ['--shard=2/2', '--listTests']); | ||
|
|
||
| const paths = result.stdout | ||
| .split('\n') | ||
| .filter(Boolean) | ||
| .map(file => path.basename(file)); | ||
|
|
||
| expect(paths).toEqual(['2.test.js']); | ||
| }); | ||
|
|
||
| test('--shard=4/4', () => { | ||
| const result = runJest('shard', ['--shard=4/4', '--listTests']); | ||
|
|
||
| const paths = result.stdout | ||
| .split('\n') | ||
| .filter(Boolean) | ||
| .map(file => path.basename(file)); | ||
|
|
||
| // project only has 3 files | ||
| // shards > 3 are empty | ||
| expect(paths).toEqual([]); | ||
| }); | ||
|
|
||
| test('--shard=1/2 custom non-sharding test sequencer', () => { | ||
| const result = runJest('shard', [ | ||
| '--shard=1/2', | ||
| '--listTests', | ||
| '--testSequencer=./no-sharding-test-sequencer.js', | ||
| ]); | ||
|
|
||
| expect(result).toMatchObject({ | ||
| failed: true, | ||
| stderr: expect.stringMatching( | ||
| /Shard (.*) requested, but test sequencer (.*) in (.*) has no shard method./, | ||
| ), | ||
| }); | ||
| }); | ||
|
|
||
| test('--shard=1/2 custom sharding test sequencer', () => { | ||
| const result = runJest('shard', [ | ||
| '--shard=1/2', | ||
| '--listTests', | ||
| '--testSequencer=./sharding-test-sequencer.js', | ||
| ]); | ||
|
|
||
| const paths = result.stdout | ||
| .split('\n') | ||
| .filter(Boolean) | ||
| .map(file => path.basename(file)); | ||
|
|
||
| expect(paths).toEqual(['3.test.js']); | ||
| }); |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,13 @@ | ||
| /** | ||
| * 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. | ||
| */ | ||
| 'use strict'; | ||
|
|
||
| test('1-1', () => expect(2).toBe(2)); | ||
|
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| test('1-2', () => expect(2).toBe(2)); | ||
|
|
||
| test('1-3', () => expect(2).toBe(2)); |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,13 @@ | ||
| /** | ||
| * 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. | ||
| */ | ||
| 'use strict'; | ||
|
|
||
| test('2-1', () => expect(2).toBe(2)); | ||
|
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| test('2-2', () => expect(2).toBe(2)); | ||
|
|
||
| test('2-3', () => expect(2).toBe(2)); |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,13 @@ | ||
| /** | ||
| * 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. | ||
| */ | ||
| 'use strict'; | ||
|
|
||
| test('3-1', () => expect(2).toBe(2)); | ||
|
|
||
| test('3-2', () => expect(2).toBe(2)); | ||
|
|
||
| test('3-3', () => expect(2).toBe(2)); |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,11 @@ | ||
| /** | ||
| * 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. | ||
| */ | ||
| module.exports = class NoShardingSequencer { | ||
| sort(tests) { | ||
| return tests; | ||
| } | ||
| }; |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,5 @@ | ||
| { | ||
| "jest": { | ||
| "testEnvironment": "node" | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,18 @@ | ||
| /** | ||
| * 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. | ||
| */ | ||
| module.exports = class NoShardingSequencer { | ||
| shard(tests) { | ||
| return [ | ||
| Array.from(tests).sort((a, b) => | ||
| a.path < b.path ? -1 : a.path > b.path ? 1 : 0, | ||
| )[2], | ||
| ]; | ||
| } | ||
| sort(tests) { | ||
| return tests; | ||
| } | ||
| }; |
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