50 lines
1.3 KiB
JavaScript
50 lines
1.3 KiB
JavaScript
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/**
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* Copyright (c) 2015-present, Facebook, Inc.
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* All rights reserved.
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*
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* This source code is licensed under the BSD-style license found in the
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* LICENSE file in the root directory of this source tree. An additional grant
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* of patent rights can be found in the PATENTS file in the same directory.
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*
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* @emails oncall+javascript_foundation
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* @flow
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* @format
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*/
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'use strict';
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/* eslint-disable no-unclear-flowtypes */
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declare var jest: any;
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declare var describe: any;
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declare var it: any;
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jest.mock('fs');
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const fs = require('fs');
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describe('fs mock', () => {
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describe('writeFileSync()', () => {
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it('stores content correctly', () => {
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fs.writeFileSync('/test', 'foobar', 'utf8');
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const content = fs.readFileSync('/test', 'utf8');
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expect(content).toEqual('foobar');
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});
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it('fails on missing path', () => {
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expect(() =>
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fs.writeFileSync('/dir/test', 'foobar', 'utf8'),
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).toThrowError('ENOENT: no such file or directory');
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});
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});
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describe('mkdirSync()', () => {
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it('creates folders that we can write files in', () => {
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fs.mkdirSync('/dir', 0o777);
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fs.writeFileSync('/dir/test', 'foobar', 'utf8');
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const content = fs.readFileSync('/dir/test', 'utf8');
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expect(content).toEqual('foobar');
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});
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});
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});
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