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import { setHTMLFixture, resetHTMLFixture } from 'helpers/fixtures';
import initReadMore from '~/read_more';
describe('Read more click-to-expand functionality', () => {
const findTrigger = () => document.querySelector('.js-read-more-trigger');
afterEach(() => {
resetHTMLFixture();
});
describe('expands target element', () => {
beforeEach(() => {
setHTMLFixture(`
<p class="read-more-container">Target</p>
<button type="button" class="js-read-more-trigger">
<span>Button text</span>
</button>
`);
});
it('adds "is-expanded" class to target element', () => {
const target = document.querySelector('.read-more-container');
const trigger = findTrigger();
initReadMore();
trigger.click();
expect(target.classList.contains('is-expanded')).toEqual(true);
});
});
describe('given click on nested element', () => {
beforeEach(() => {
setHTMLFixture(`
<p>Target</p>
<button type="button" class="js-read-more-trigger">
<span>Button text</span>
</button>
`);
const trigger = findTrigger();
const nestedElement = trigger.firstElementChild;
initReadMore();
nestedElement.click();
});
it('removes the trigger element', () => {
expect(findTrigger()).toBe(null);
});
});
});
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