mattermost-mobile/app/components/progressive_image/progressive_image.test.js
CJ 0204722627
MM-19037 Updated Progressive Image Loader (#3414)
* MM-19037 Updated Progressive Image Loader

Set the return for the listener to return a null for hte loader images, stopping the component from thinking it had a loaded image on a failure.

Also enabled the thumbnail to make an additional attempt to load when it receives the null response.

* MM-19037 Updated Eslint

Eslint issue resolved

* MM-19037 Add Unit Tests

Added Unit tests

* empty commit
2019-11-17 23:35:44 -05:00

43 lines
No EOL
1.2 KiB
JavaScript

// Copyright (c) 2015-present Mattermost, Inc. All Rights Reserved.
// See LICENSE.txt for license information.
import React from 'react';
import {shallow} from 'enzyme';
import Preferences from 'mattermost-redux/constants/preferences';
import ProgressiveImage from './progressive_image';
describe('ProgressiveImage', () => {
const baseProps = {
isBackgroundImage: false,
defaultSource: 0,
filename: 'defaultImage',
imageUri: 'https://images.com/image.png',
onError: jest.fn(),
resizeMethod: 'auto',
resizeMode: 'contain',
theme: Preferences.THEMES.default,
thumbnailUri: 'https://images.com/image.png',
tintDefaultSource: false,
};
test('should match snapshot when just a image loads', () => {
const wrapper = shallow(
<ProgressiveImage {...baseProps}/>
);
expect(wrapper.getElement()).toMatchSnapshot();
});
test('should match snapshot when no thumbnail', () => {
const props = {
...baseProps,
thumbnailUri: null,
};
const wrapper = shallow(
<ProgressiveImage {...props}/>
);
expect(wrapper.getElement()).toMatchSnapshot();
});
});