mattermost-mobile/app/components/channel_loader/channel_loader.test.js
Miguel Alatzar 68d76af4dd
[MM-29381] Show an indicator if channel is still loading after 10 seconds (#5031)
* Show still-loading indicator

* Update snapshot test

* Call retryLoadChannels on a 10 second interval

* Select default team on retryLoad if no currentTeamId

* Fix use of jest.useFakeTimers
2020-12-11 11:32:56 -07:00

41 lines
1.4 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 '@mm-redux/constants/preferences';
import ChannelLoader from './channel_loader';
jest.useFakeTimers();
describe('ChannelLoader', () => {
const baseProps = {
channelIsLoading: true,
theme: Preferences.THEMES.default,
retryLoad: jest.fn(),
};
test('should match snapshot', () => {
const wrapper = shallow(<ChannelLoader {...baseProps}/>);
expect(wrapper.getElement()).toMatchSnapshot();
});
test('should call setTimeout and setInterval for showIndicator and retryLoad on mount', () => {
const wrapper = shallow(<ChannelLoader {...baseProps}/>);
const instance = wrapper.instance();
expect(setTimeout).toHaveBeenCalledWith(instance.showIndicator, 10000);
expect(setInterval).toHaveBeenCalledWith(baseProps.retryLoad, 10000);
});
test('should clear timer and interval on unmount', () => {
const wrapper = shallow(<ChannelLoader {...baseProps}/>);
const instance = wrapper.instance();
instance.componentWillUnmount();
expect(clearTimeout).toHaveBeenCalledWith(instance.stillLoadingTimeout);
expect(clearInterval).toHaveBeenCalledWith(instance.retryLoadInterval);
});
});