141 lines
4.4 KiB
JavaScript
141 lines
4.4 KiB
JavaScript
/* eslint-disable import/no-commonjs, max-classes-per-file */
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const path = require('path');
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const JSDOMEnvironment = require('jest-environment-jsdom');
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const { ErrorWithStack } = require('jest-util');
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const {
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setGlobalDateToFakeDate,
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setGlobalDateToRealDate,
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} = require('./__helpers__/fake_date/fake_date');
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const { TEST_HOST } = require('./__helpers__/test_constants');
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const ROOT_PATH = path.resolve(__dirname, '../..');
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class CustomEnvironment extends JSDOMEnvironment {
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constructor(config, context) {
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// Setup testURL so that window.location is setup properly
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super({ ...config, testURL: TEST_HOST }, context);
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// Fake the `Date` for `jsdom` which fixes things like document.cookie
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// https://gitlab.com/gitlab-org/gitlab/-/merge_requests/39496#note_503084332
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setGlobalDateToFakeDate();
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Object.assign(context.console, {
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error(...args) {
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throw new ErrorWithStack(
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`Unexpected call of console.error() with:\n\n${args.join(', ')}`,
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this.error,
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);
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},
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warn(...args) {
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if (args[0].includes('The updateQuery callback for fetchMore is deprecated')) {
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return;
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}
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throw new ErrorWithStack(
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`Unexpected call of console.warn() with:\n\n${args.join(', ')}`,
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this.warn,
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);
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},
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});
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const { testEnvironmentOptions } = config;
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const { IS_EE } = testEnvironmentOptions;
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this.global.gon = {
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ee: IS_EE,
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};
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this.global.IS_EE = IS_EE;
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// Set up global `gl` object
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this.global.gl = {};
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this.rejectedPromises = [];
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this.global.promiseRejectionHandler = (error) => {
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this.rejectedPromises.push(error);
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};
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this.global.fixturesBasePath = `${ROOT_PATH}/tmp/tests/frontend/fixtures${IS_EE ? '-ee' : ''}`;
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this.global.staticFixturesBasePath = `${ROOT_PATH}/spec/frontend/fixtures`;
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/**
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* window.fetch() is required by the apollo-upload-client library otherwise
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* a ReferenceError is generated: https://github.com/jaydenseric/apollo-upload-client/issues/100
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*/
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this.global.fetch = () => {};
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// Expose the jsdom (created in super class) to the global so that we can call reconfigure({ url: '' }) to properly set `window.location`
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this.global.jsdom = this.dom;
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Object.assign(this.global.performance, {
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mark: () => null,
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measure: () => null,
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getEntriesByName: () => [],
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});
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//
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// Monaco-related environment variables
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//
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this.global.MonacoEnvironment = { globalAPI: true };
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Object.defineProperty(this.global, 'matchMedia', {
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writable: true,
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value: (query) => ({
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matches: false,
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media: query,
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onchange: null,
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addListener: () => null, // deprecated
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removeListener: () => null, // deprecated
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addEventListener: () => null,
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removeEventListener: () => null,
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dispatchEvent: () => null,
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}),
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});
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/**
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* JSDom doesn't have an own observer implementation, so this a Noop Observer.
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* If you are testing functionality, related to observers, have a look at __helpers__/mock_dom_observer.js
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*
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* JSDom actually implements a _proper_ MutationObserver, so no need to mock it!
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*/
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class NoopObserver {
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/* eslint-disable no-useless-constructor, no-unused-vars, no-empty-function, class-methods-use-this */
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constructor(callback) {}
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disconnect() {}
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observe(element, initObject) {}
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unobserve(element) {}
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takeRecords() {
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return [];
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}
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/* eslint-enable no-useless-constructor, no-unused-vars, no-empty-function, class-methods-use-this */
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}
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['IntersectionObserver', 'PerformanceObserver', 'ResizeObserver'].forEach((observer) => {
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if (this.global[observer]) {
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throw new Error(
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`We overwrite an existing Observer in jsdom (${observer}), are you sure you want to do that?`,
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);
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}
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this.global[observer] = NoopObserver;
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});
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}
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async teardown() {
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// Reset `Date` so that Jest can report timing accurately *roll eyes*...
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setGlobalDateToRealDate();
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// eslint-disable-next-line no-restricted-syntax
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await new Promise(setImmediate);
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if (this.rejectedPromises.length > 0) {
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throw new ErrorWithStack(
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`Unhandled Promise rejections: ${this.rejectedPromises.join(', ')}`,
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this.teardown,
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);
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}
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await super.teardown();
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}
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}
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module.exports = CustomEnvironment;
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