debian-mirror-gitlab/spec/frontend/blob/sketch/index_spec.js

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import SketchLoader from '~/blob/sketch';
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import { setHTMLFixture, resetHTMLFixture } from 'helpers/fixtures';
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import waitForPromises from 'helpers/wait_for_promises';
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import htmlSketchViewer from 'test_fixtures_static/sketch_viewer.html';
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describe('Sketch viewer', () => {
beforeEach(() => {
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setHTMLFixture(htmlSketchViewer);
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});
afterEach(() => {
resetHTMLFixture();
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});
describe('with error message', () => {
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beforeEach(() => {
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jest.spyOn(SketchLoader.prototype, 'getZipContents').mockImplementation(
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() =>
new Promise((resolve, reject) => {
reject();
}),
);
return new SketchLoader(document.getElementById('js-sketch-viewer'));
});
it('renders error message', () => {
expect(document.querySelector('#js-sketch-viewer p')).not.toBeNull();
expect(document.querySelector('#js-sketch-viewer p').textContent.trim()).toContain(
'Cannot show preview.',
);
});
it('removes the loading icon', () => {
expect(document.querySelector('.js-loading-icon')).toBeNull();
});
});
describe('success', () => {
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beforeEach(() => {
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jest.spyOn(SketchLoader.prototype, 'getZipContents').mockResolvedValue({
files: {
'previews/preview.png': {
async: jest.fn().mockResolvedValue('foo'),
},
},
});
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// eslint-disable-next-line no-new
new SketchLoader(document.getElementById('js-sketch-viewer'));
return waitForPromises();
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});
it('does not render error message', () => {
expect(document.querySelector('#js-sketch-viewer p')).toBeNull();
});
it('removes the loading icon', () => {
expect(document.querySelector('.js-loading-icon')).toBeNull();
});
it('renders preview img', () => {
const img = document.querySelector('#js-sketch-viewer img');
expect(img).not.toBeNull();
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expect(img.classList.contains('img-fluid')).toBe(true);
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});
it('renders link to image', () => {
const img = document.querySelector('#js-sketch-viewer img');
const link = document.querySelector('#js-sketch-viewer a');
expect(link.href).toBe(img.src);
expect(link.target).toBe('_blank');
});
});
});