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Ensure verbose mode prints output synchronously
Fixes jestjs#8208
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// Jest Snapshot v1, https://goo.gl/fbAQLP | ||
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exports[`console debugging with --verbose 1`] = ` | ||
console.log | ||
test | ||
at Object.log (__tests__/console-debugging.test.js:14:11) | ||
`; | ||
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exports[`console debugging with --verbose 2`] = ` | ||
PASS __tests__/console-debugging.test.js | ||
✓ verbose mode prints console output synchronously | ||
`; | ||
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exports[`console debugging with --verbose 3`] = ` | ||
Test Suites: 1 passed, 1 total | ||
Tests: 1 passed, 1 total | ||
Snapshots: 1 passed, 1 total | ||
Time: <<REPLACED>> | ||
Ran all test suites. | ||
`; |
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/** | ||
* 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. | ||
*/ | ||
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import {wrap} from 'jest-snapshot-serializer-raw'; | ||
import {extractSummary} from '../Utils'; | ||
import runJest from '../runJest'; | ||
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test('console debugging with --verbose', () => { | ||
const {stderr, stdout, exitCode} = runJest('console-debugging', [ | ||
'--noStackTrace', | ||
'--no-cache', | ||
]); | ||
const {summary, rest} = extractSummary(stderr); | ||
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expect(exitCode).toBe(0); | ||
expect(wrap(stdout)).toMatchSnapshot(); | ||
expect(wrap(rest)).toMatchSnapshot(); | ||
expect(wrap(summary)).toMatchSnapshot(); | ||
}); |
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/** | ||
* 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'; | ||
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const stdoutWrite = require('../stdout-spy'); | ||
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process.stdout.write = jest.fn(process.stdout.write); | ||
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test('verbose mode prints console output synchronously', () => { | ||
console.log('test'); | ||
expect(stdoutWrite.text).toMatchInlineSnapshot(` | ||
" console.log | ||
test | ||
at Object.log (__tests__/console-debugging.test.js:14:11) | ||
" | ||
`); | ||
}); |
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{ | ||
"jest": { | ||
"testEnvironment": "node", | ||
"verbose": true, | ||
"setupFiles": [ | ||
"./stdout-spy.js" | ||
] | ||
} | ||
} |
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const originalStdoutWrite = process.stdout.write; | ||
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const stdoutWrite = (...args) => { | ||
stdoutWrite.text = args[0]; | ||
originalStdoutWrite(...args); | ||
}; | ||
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process.stdout.write = stdoutWrite; | ||
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module.exports = stdoutWrite; |
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