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4.55 kBJavaScriptView Raw
1'use strict';
2
3function _jsdom() {
4 const data = require('jsdom');
5
6 _jsdom = function () {
7 return data;
8 };
9
10 return data;
11}
12
13function _fakeTimers() {
14 const data = require('@jest/fake-timers');
15
16 _fakeTimers = function () {
17 return data;
18 };
19
20 return data;
21}
22
23function _jestMock() {
24 const data = require('jest-mock');
25
26 _jestMock = function () {
27 return data;
28 };
29
30 return data;
31}
32
33function _jestUtil() {
34 const data = require('jest-util');
35
36 _jestUtil = function () {
37 return data;
38 };
39
40 return data;
41}
42
43function _defineProperty(obj, key, value) {
44 if (key in obj) {
45 Object.defineProperty(obj, key, {
46 value: value,
47 enumerable: true,
48 configurable: true,
49 writable: true
50 });
51 } else {
52 obj[key] = value;
53 }
54 return obj;
55}
56
57class JSDOMEnvironment {
58 constructor(config, options) {
59 _defineProperty(this, 'dom', void 0);
60
61 _defineProperty(this, 'fakeTimers', void 0);
62
63 _defineProperty(this, 'fakeTimersModern', void 0);
64
65 _defineProperty(this, 'global', void 0);
66
67 _defineProperty(this, 'errorEventListener', void 0);
68
69 _defineProperty(this, 'moduleMocker', void 0);
70
71 this.dom = new (_jsdom().JSDOM)('<!DOCTYPE html>', {
72 pretendToBeVisual: true,
73 resources:
74 typeof config.testEnvironmentOptions.userAgent === 'string'
75 ? new (_jsdom().ResourceLoader)({
76 userAgent: config.testEnvironmentOptions.userAgent
77 })
78 : undefined,
79 runScripts: 'dangerously',
80 url: config.testURL,
81 virtualConsole: new (_jsdom().VirtualConsole)().sendTo(
82 (options === null || options === void 0 ? void 0 : options.console) ||
83 console
84 ),
85 ...config.testEnvironmentOptions
86 });
87 const global = (this.global = this.dom.window.document.defaultView);
88
89 if (!global) {
90 throw new Error('JSDOM did not return a Window object');
91 } // for "universal" code (code should use `globalThis`)
92
93 global.global = global; // Node's error-message stack size is limited at 10, but it's pretty useful
94 // to see more than that when a test fails.
95
96 this.global.Error.stackTraceLimit = 100;
97 (0, _jestUtil().installCommonGlobals)(global, config.globals); // TODO: remove this ASAP, but it currently causes tests to run really slow
98
99 global.Buffer = Buffer; // Report uncaught errors.
100
101 this.errorEventListener = event => {
102 if (userErrorListenerCount === 0 && event.error) {
103 process.emit('uncaughtException', event.error);
104 }
105 };
106
107 global.addEventListener('error', this.errorEventListener); // However, don't report them as uncaught if the user listens to 'error' event.
108 // In that case, we assume the might have custom error handling logic.
109
110 const originalAddListener = global.addEventListener;
111 const originalRemoveListener = global.removeEventListener;
112 let userErrorListenerCount = 0;
113
114 global.addEventListener = function (...args) {
115 if (args[0] === 'error') {
116 userErrorListenerCount++;
117 }
118
119 return originalAddListener.apply(this, args);
120 };
121
122 global.removeEventListener = function (...args) {
123 if (args[0] === 'error') {
124 userErrorListenerCount--;
125 }
126
127 return originalRemoveListener.apply(this, args);
128 };
129
130 this.moduleMocker = new (_jestMock().ModuleMocker)(global);
131 const timerConfig = {
132 idToRef: id => id,
133 refToId: ref => ref
134 };
135 this.fakeTimers = new (_fakeTimers().LegacyFakeTimers)({
136 config,
137 global: global,
138 moduleMocker: this.moduleMocker,
139 timerConfig
140 });
141 this.fakeTimersModern = new (_fakeTimers().ModernFakeTimers)({
142 config,
143 global: global
144 });
145 }
146
147 async setup() {}
148
149 async teardown() {
150 if (this.fakeTimers) {
151 this.fakeTimers.dispose();
152 }
153
154 if (this.fakeTimersModern) {
155 this.fakeTimersModern.dispose();
156 }
157
158 if (this.global) {
159 if (this.errorEventListener) {
160 this.global.removeEventListener('error', this.errorEventListener);
161 } // Dispose "document" to prevent "load" event from triggering.
162
163 Object.defineProperty(this.global, 'document', {
164 value: null
165 });
166 this.global.close();
167 }
168
169 this.errorEventListener = null; // @ts-expect-error
170
171 this.global = null;
172 this.dom = null;
173 this.fakeTimers = null;
174 this.fakeTimersModern = null;
175 }
176
177 getVmContext() {
178 if (this.dom) {
179 return this.dom.getInternalVMContext();
180 }
181
182 return null;
183 }
184}
185
186module.exports = JSDOMEnvironment;