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tc38-not-implement-comment-interface

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Test Case: JSDOM doesn't implement Comment interface correctly

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-43
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 (56ms)

● AppComponent › should create the app

AssertionError: expected undefined to equal 'testing'

  18 |   it('should create the app', () => {
  19 |     const comment = new Comment('testing');
> 20 |     expect(comment.data).to.equal('testing');
     |                             ^
  21 |   });
  22 | });
  23 |

  at src/app/app.component.spec.ts:20:29

Test Suites: 1 failed, 1 total Tests: 1 failed, 1 total Snapshots: 0 total Time: 2.629s

Expected

Expect comment.data to exist

Description

JSDOM doesn't implement Comment interface.

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