tc53-ImageData-not-support-globally

Test Case: JSDOM ImageData API is not supported globally

Test Case Code

https://drive.google.com/file/d/1dkFjRWnYFVho75eq61iwFunB-qDSKgeB/view?usp=sharing

// check file
app.component.spec.ts

Topcoder handle

applehit16

Your document content (required)

How to run test

Prerequisites

1. Node 8+
2. NPM or yarn
3. Git
4. Safari, Chrome, Firefox

Run Test on Karma

cd topcoder-jest-test
git checkout issue-60
npm install
npm run test

Run Test on Jest

npm run test:jest

Browser have tested

Chrome, Safari, Firefox

Test Result on Karma

Browser	Result
Chrome 72.0.3626 (Mac OS X 10.14.2)	success
Safari 11.1.0 (Mac OS X 10.14.2)	success
Firefox 65.0.0 (Mac OS X 10.14.2)	success

Test Result on Jest

What we get

 FAIL  src/app/app.component.spec.ts
  AppComponent
    ✕ should create the app (82ms)

  ● AppComponent › should create the app

    ReferenceError: ImageData is not defined

      18 |   it('should create the app', () => {
      19 |     const fixture = TestBed.createComponent(AppComponent);
    > 20 |     expect(ImageData).to.not.be.undefined;
         |            ^
      21 |   });
      22 | });
      23 |

      at src/app/app.component.spec.ts:20:12

Test Suites: 1 failed, 1 total
Tests:       1 failed, 1 total
Snapshots:   0 total
Time:        2.342s
Ran all test suites.

Expected

Expect ImageData api is defined in JSDOM globally

Description

currently it's only defined under canvas

web standard: https://developer.mozilla.org/en-US/docs/Web/API/ImageData

jsdom issue: jsdom/jsdom#1749