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feat(runtime): support require.resolve with options.paths
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/** | ||
* Copyright (c) 2014-present, Facebook, Inc. 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. | ||
* | ||
* @flow | ||
*/ | ||
'use strict'; | ||
|
||
const {resolve} = require('path'); | ||
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const runJest = require('../runJest'); | ||
const {writeFiles, cleanup} = require('../Utils'); | ||
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const workdirNodeModules = resolve( | ||
__dirname, | ||
'..', | ||
'resolve-with-paths', | ||
'node_modules', | ||
); | ||
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beforeAll(() => { | ||
writeFiles(resolve(workdirNodeModules, 'mod'), { | ||
'index.js': 'module.exports = 42;', | ||
}); | ||
}); | ||
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afterAll(() => { | ||
cleanup(workdirNodeModules); | ||
}); | ||
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test('require.resolve with paths', () => { | ||
const {status} = runJest('resolve-with-paths'); | ||
expect(status).toBe(0); | ||
}); |
37 changes: 37 additions & 0 deletions
37
e2e/resolve-with-paths/__tests__/resolve-with-paths.test.js
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@@ -0,0 +1,37 @@ | ||
/** | ||
* Copyright (c) 2014-present, Facebook, Inc. 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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import {resolve} from 'path'; | ||
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test('finds a module relative to one of the given paths', () => { | ||
expect(require.resolve('./mod.js', {paths: ['../dir']})).toEqual( | ||
resolve(__dirname, '..', 'dir', 'mod.js') | ||
); | ||
}); | ||
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test('finds a module without a leading "./" relative to one of the given paths', () => { | ||
expect(require.resolve('mod.js', {paths: ['../dir']})).toEqual( | ||
resolve(__dirname, '..', 'dir', 'mod.js') | ||
); | ||
}); | ||
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test('finds a node_module above one of the given paths', () => { | ||
expect(require.resolve('mod', {paths: ['../dir']})).toEqual( | ||
resolve(__dirname, '..', 'node_modules', 'mod', 'index.js') | ||
); | ||
}); | ||
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test('finds a native node module when paths are given', () => { | ||
expect(require.resolve('fs', {paths: ['../dir']})).toEqual('fs'); | ||
}); | ||
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test('throws an error if the module cannot be found from given paths', () => { | ||
expect(() => require.resolve('./mod.js', {paths: ['..']})).toThrowError( | ||
"Cannot resolve module './mod.js' from paths ['..'] from " | ||
); | ||
}); |
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/** | ||
* Copyright (c) 2014-present, Facebook, Inc. 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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module.exports = 'mod'; |
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{ | ||
"jest": { | ||
"testEnvironment": "node" | ||
} | ||
} |
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