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import { GlAlert } from '@gitlab/ui';
import { shallowMount } from '@vue/test-utils';
import Vue from 'vue';
import VueApollo from 'vue-apollo';
import createMockApollo from 'helpers/mock_apollo_helper';
import waitForPromises from 'helpers/wait_for_promises';
import WorkItemDetail from '~/work_items/components/work_item_detail.vue';
import WorkItemTitle from '~/work_items/components/work_item_title.vue';
import { i18n } from '~/work_items/constants';
import workItemQuery from '~/work_items/graphql/work_item.query.graphql';
import workItemTitleSubscription from '~/work_items/graphql/work_item_title.subscription.graphql';
import { workItemTitleSubscriptionResponse, workItemQueryResponse } from '../mock_data';
describe('WorkItemDetail component', () => {
let wrapper;
Vue.use(VueApollo);
const successHandler = jest.fn().mockResolvedValue(workItemQueryResponse);
const initialSubscriptionHandler = jest.fn().mockResolvedValue(workItemTitleSubscriptionResponse);
const findAlert = () => wrapper.findComponent(GlAlert);
const findWorkItemTitle = () => wrapper.findComponent(WorkItemTitle);
const createComponent = ({
workItemId = workItemQueryResponse.data.workItem.id,
handler = successHandler,
subscriptionHandler = initialSubscriptionHandler,
} = {}) => {
wrapper = shallowMount(WorkItemDetail, {
apolloProvider: createMockApollo([
[workItemQuery, handler],
[workItemTitleSubscription, subscriptionHandler],
]),
propsData: { workItemId },
});
};
afterEach(() => {
wrapper.destroy();
});
describe('when there is no `workItemId` prop', () => {
beforeEach(() => {
createComponent({ workItemId: null });
});
it('skips the work item query', () => {
expect(successHandler).not.toHaveBeenCalled();
});
});
describe('when loading', () => {
beforeEach(() => {
createComponent();
});
it('renders WorkItemTitle in loading state', () => {
expect(findWorkItemTitle().props('loading')).toBe(true);
});
});
describe('when loaded', () => {
beforeEach(() => {
createComponent();
return waitForPromises();
});
it('does not render WorkItemTitle in loading state', () => {
expect(findWorkItemTitle().props('loading')).toBe(false);
});
});
it('shows an error message when the work item query was unsuccessful', async () => {
const errorHandler = jest.fn().mockRejectedValue('Oops');
createComponent({ handler: errorHandler });
await waitForPromises();
expect(errorHandler).toHaveBeenCalled();
expect(findAlert().text()).toBe(i18n.fetchError);
});
it('shows an error message when WorkItemTitle emits an `error` event', async () => {
createComponent();
findWorkItemTitle().vm.$emit('error', i18n.updateError);
await waitForPromises();
expect(findAlert().text()).toBe(i18n.updateError);
});
it('calls the subscription', () => {
createComponent();
expect(initialSubscriptionHandler).toHaveBeenCalledWith({
issuableId: workItemQueryResponse.data.workItem.id,
});
});
});
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