(Medium) - Decouple Side-Effects
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| QUnit.test('Allows to filter the list of posts', (assert) => { | |
| const inMemoryDataSource = { | |
| findPostsTitle: () => Promise.resolve(['How to bake a cake', 'How to drive a car', 'A guide to fly']), | |
| }; | |
| const ignoreOutHowTos = (postTitle) => postTitle.indexOf('How to') !== -1; | |
| const listOfPostTitles = ListOfPostTitles(); | |
| listOfPostTitles.setDataSource(inMemoryDataSource); | |
| return listOfPostTitles.toHtml(ignoreOutHowTos).then((list) => { | |
| assert.strictEqual(list, '<ul><li>A guide to fly</li></ul>'); | |
| }); | |
| }); |
