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import Vue, { nextTick } from 'vue';
import { mount } from '@vue/test-utils';
import GlCountdown from '~/vue_shared/components/gl_countdown.vue';
describe('GlCountdown', () => {
let wrapper;
let now = '2000-01-01T00:00:00Z';
beforeEach(() => {
jest.spyOn(Date, 'now').mockImplementation(() => new Date(now).getTime());
});
describe('when there is time remaining', () => {
beforeEach(() => {
wrapper = mount(GlCountdown, {
propsData: {
endDateString: '2000-01-01T01:02:03Z',
},
});
});
it('displays remaining time', () => {
expect(wrapper.text()).toContain('01:02:03');
});
it('updates remaining time', async () => {
now = '2000-01-01T00:00:01Z';
jest.advanceTimersByTime(1000);
await nextTick();
expect(wrapper.text()).toContain('01:02:02');
});
});
describe('when there is no time remaining', () => {
beforeEach(() => {
wrapper = mount(GlCountdown, {
propsData: {
endDateString: '1900-01-01T00:00:00Z',
},
});
});
it('displays 00:00:00', () => {
expect(wrapper.text()).toContain('00:00:00');
});
});
describe('when an invalid date is passed', () => {
beforeEach(() => {
Vue.config.warnHandler = jest.fn();
});
afterEach(() => {
Vue.config.warnHandler = null;
});
it('throws a validation error', () => {
wrapper = mount(GlCountdown, {
propsData: {
endDateString: 'this is invalid',
},
});
expect(Vue.config.warnHandler).toHaveBeenCalledTimes(1);
const [errorMessage] = Vue.config.warnHandler.mock.calls[0];
expect(errorMessage).toMatch(/^Invalid prop: .* "endDateString"/);
});
});
});
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