forked from jestjs/jest
/
runtime_require_cache.test.js
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/
runtime_require_cache.test.js
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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';
let createRuntime;
describe('Runtime require.cache', () => {
beforeEach(() => {
createRuntime = require('createRuntime');
});
it('require.cache returns loaded module list as native Nodejs require does', () =>
createRuntime(__filename).then(runtime => {
const regularModule = runtime.requireModule(
runtime.__mockRootPath,
'RegularModule',
).module;
expect(regularModule.require.cache[regularModule.id]).toBe(regularModule);
}));
it('require.cache is tolerant readonly', () =>
createRuntime(__filename).then(runtime => {
const regularModule = runtime.requireModule(
runtime.__mockRootPath,
'RegularModule',
).module;
delete regularModule.require.cache[regularModule.id];
expect(regularModule.require.cache[regularModule.id]).toBe(regularModule);
regularModule.require.cache[regularModule.id] = 'something';
expect(regularModule.require.cache[regularModule.id]).toBe(regularModule);
}));
});