summaryrefslogtreecommitdiff
path: root/spec/frontend/environment.js
blob: 35ca323f5a955525cc91ace9b686367087284b78 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
/* eslint-disable import/no-commonjs */

const path = require('path');
const { ErrorWithStack } = require('jest-util');
const JSDOMEnvironment = require('jest-environment-jsdom-sixteen');
const { TEST_HOST } = require('./helpers/test_constants');

const ROOT_PATH = path.resolve(__dirname, '../..');

class CustomEnvironment extends JSDOMEnvironment {
  constructor(config, context) {
    // Setup testURL so that window.location is setup properly
    super({ ...config, testURL: TEST_HOST }, context);

    Object.assign(context.console, {
      error(...args) {
        throw new ErrorWithStack(
          `Unexpected call of console.error() with:\n\n${args.join(', ')}`,
          this.error,
        );
      },

      warn(...args) {
        throw new ErrorWithStack(
          `Unexpected call of console.warn() with:\n\n${args.join(', ')}`,
          this.warn,
        );
      },
    });

    const { testEnvironmentOptions } = config;
    const { IS_EE } = testEnvironmentOptions;
    this.global.gon = {
      ee: IS_EE,
    };
    this.global.IS_EE = IS_EE;

    this.rejectedPromises = [];

    this.global.promiseRejectionHandler = error => {
      this.rejectedPromises.push(error);
    };

    this.global.fixturesBasePath = `${ROOT_PATH}/tmp/tests/frontend/fixtures${IS_EE ? '-ee' : ''}`;
    this.global.staticFixturesBasePath = `${ROOT_PATH}/spec/frontend/fixtures`;

    /**
     * window.fetch() is required by the apollo-upload-client library otherwise
     * a ReferenceError is generated: https://github.com/jaydenseric/apollo-upload-client/issues/100
     */
    this.global.fetch = () => {};

    // Expose the jsdom (created in super class) to the global so that we can call reconfigure({ url: '' }) to properly set `window.location`
    this.global.jsdom = this.dom;

    Object.assign(this.global.performance, {
      mark: () => null,
      measure: () => null,
      getEntriesByName: () => [],
    });
  }

  async teardown() {
    await new Promise(setImmediate);

    if (this.rejectedPromises.length > 0) {
      throw new ErrorWithStack(
        `Unhandled Promise rejections: ${this.rejectedPromises.join(', ')}`,
        this.teardown,
      );
    }

    await super.teardown();
  }
}

module.exports = CustomEnvironment;