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import MockAdapter from 'axios-mock-adapter';
import $ from 'jquery';
import { setHTMLFixture } from 'helpers/fixtures';
import axios from '~/lib/utils/axios_utils';
import SingleFileDiff from '~/single_file_diff';
describe('SingleFileDiff', () => {
let mock = new MockAdapter(axios);
const blobDiffPath = '/mock-path';
beforeEach(() => {
mock = new MockAdapter(axios);
mock.onGet(blobDiffPath).replyOnce(200, { html: `<div class="diff-content">MOCKED</div>` });
});
afterEach(() => {
mock.restore();
});
it('loads diff via axios exactly once for collapsed diffs', async () => {
setHTMLFixture(`
<div class="diff-file">
<div class="js-file-title">
MOCK TITLE
</div>
<div class="diff-content">
<div class="diff-viewer" data-type="simple">
<div
class="nothing-here-block diff-collapsed"
data-diff-for-path="${blobDiffPath}"
>
MOCK CONTENT
</div>
</div>
</div>
</div>
`);
// Collapsed is the default state
const diff = new SingleFileDiff(document.querySelector('.diff-file'));
expect(diff.isOpen).toBe(false);
expect(diff.content).toBeNull();
expect(diff.diffForPath).toEqual(blobDiffPath);
// Opening for the first time
await diff.toggleDiff($(document.querySelector('.js-file-title')));
expect(diff.isOpen).toBe(true);
expect(diff.content).not.toBeNull();
// Collapsing again
await diff.toggleDiff($(document.querySelector('.js-file-title')));
expect(diff.isOpen).toBe(false);
expect(diff.content).not.toBeNull();
mock.onGet(blobDiffPath).replyOnce(400, '');
// Opening again
await diff.toggleDiff($(document.querySelector('.js-file-title')));
expect(diff.isOpen).toBe(true);
expect(diff.content).not.toBeNull();
expect(mock.history.get.length).toBe(1);
});
it('does not load diffs via axios for already expanded diffs', async () => {
setHTMLFixture(`
<div class="diff-file">
<div class="js-file-title">
MOCK TITLE
</div>
<div class="diff-content">
EXPANDED MOCK CONTENT
</div>
</div>
`);
// Opened is the default state
const diff = new SingleFileDiff(document.querySelector('.diff-file'));
expect(diff.isOpen).toBe(true);
expect(diff.content).not.toBeNull();
expect(diff.diffForPath).toEqual(undefined);
// Collapsing for the first time
await diff.toggleDiff($(document.querySelector('.js-file-title')));
expect(diff.isOpen).toBe(false);
expect(diff.content).not.toBeNull();
// Opening again
await diff.toggleDiff($(document.querySelector('.js-file-title')));
expect(diff.isOpen).toBe(true);
expect(mock.history.get.length).toBe(0);
});
});
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