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import Vue from 'vue';
import VueApollo from 'vue-apollo';
import { shallowMountExtended } from 'helpers/vue_test_utils_helper';
import waitForPromises from 'helpers/wait_for_promises';
import createMockApollo from 'helpers/mock_apollo_helper';
import { createAlert } from '~/alert';
import CatalogHeader from '~/ci/catalog/components/list/catalog_header.vue';
import CiResourcesList from '~/ci/catalog/components/list/ci_resources_list.vue';
import CatalogListSkeletonLoader from '~/ci/catalog/components/list/catalog_list_skeleton_loader.vue';
import EmptyState from '~/ci/catalog/components/list/empty_state.vue';
import { cacheConfig } from '~/ci/catalog/graphql/settings';
import ciResourcesPage from '~/ci/catalog/components/pages/ci_resources_page.vue';
import getCatalogResources from '~/ci/catalog/graphql/queries/get_ci_catalog_resources.query.graphql';
import { emptyCatalogResponseBody, catalogResponseBody } from '../../mock';
Vue.use(VueApollo);
jest.mock('~/alert');
describe('CiResourcesPage', () => {
let wrapper;
let catalogResourcesResponse;
const createComponent = () => {
const handlers = [[getCatalogResources, catalogResourcesResponse]];
const mockApollo = createMockApollo(handlers, {}, cacheConfig);
wrapper = shallowMountExtended(ciResourcesPage, {
apolloProvider: mockApollo,
});
return waitForPromises();
};
const findCatalogHeader = () => wrapper.findComponent(CatalogHeader);
const findCiResourcesList = () => wrapper.findComponent(CiResourcesList);
const findLoadingState = () => wrapper.findComponent(CatalogListSkeletonLoader);
const findEmptyState = () => wrapper.findComponent(EmptyState);
beforeEach(() => {
catalogResourcesResponse = jest.fn();
});
describe('when initial queries are loading', () => {
beforeEach(() => {
createComponent();
});
it('shows a loading icon and no list', () => {
expect(findLoadingState().exists()).toBe(true);
expect(findEmptyState().exists()).toBe(false);
expect(findCiResourcesList().exists()).toBe(false);
});
});
describe('when queries have loaded', () => {
it('renders the Catalog Header', async () => {
await createComponent();
expect(findCatalogHeader().exists()).toBe(true);
});
describe('and there are no resources', () => {
beforeEach(async () => {
catalogResourcesResponse.mockResolvedValue(emptyCatalogResponseBody);
await createComponent();
});
it('renders the empty state', () => {
expect(findLoadingState().exists()).toBe(false);
expect(findEmptyState().exists()).toBe(true);
expect(findCiResourcesList().exists()).toBe(false);
});
});
describe('and there are resources', () => {
const { nodes, pageInfo, count } = catalogResponseBody.data.ciCatalogResources;
beforeEach(async () => {
catalogResourcesResponse.mockResolvedValue(catalogResponseBody);
await createComponent();
});
it('renders the resources list', () => {
expect(findLoadingState().exists()).toBe(false);
expect(findEmptyState().exists()).toBe(false);
expect(findCiResourcesList().exists()).toBe(true);
});
it('passes down props to the resources list', () => {
expect(findCiResourcesList().props()).toMatchObject({
currentPage: 1,
resources: nodes,
pageInfo,
totalCount: count,
});
});
});
});
describe('pagination', () => {
it.each`
eventName
${'onPrevPage'}
${'onNextPage'}
`('refetch query with new params when receiving $eventName', async ({ eventName }) => {
const { pageInfo } = catalogResponseBody.data.ciCatalogResources;
catalogResourcesResponse.mockResolvedValue(catalogResponseBody);
await createComponent();
expect(catalogResourcesResponse).toHaveBeenCalledTimes(1);
await findCiResourcesList().vm.$emit(eventName);
expect(catalogResourcesResponse).toHaveBeenCalledTimes(2);
if (eventName === 'onNextPage') {
expect(catalogResourcesResponse.mock.calls[1][0]).toEqual({
after: pageInfo.endCursor,
first: 20,
});
} else {
expect(catalogResourcesResponse.mock.calls[1][0]).toEqual({
before: pageInfo.startCursor,
last: 20,
first: null,
});
}
});
});
describe('pages count', () => {
describe('when the fetchMore call suceeds', () => {
beforeEach(async () => {
catalogResourcesResponse.mockResolvedValue(catalogResponseBody);
await createComponent();
});
it('increments and drecrements the page count correctly', async () => {
expect(findCiResourcesList().props().currentPage).toBe(1);
findCiResourcesList().vm.$emit('onNextPage');
await waitForPromises();
expect(findCiResourcesList().props().currentPage).toBe(2);
await findCiResourcesList().vm.$emit('onPrevPage');
await waitForPromises();
expect(findCiResourcesList().props().currentPage).toBe(1);
});
});
describe('when the fetchMore call fails', () => {
const errorMessage = 'there was an error';
describe('for next page', () => {
beforeEach(async () => {
catalogResourcesResponse.mockResolvedValueOnce(catalogResponseBody);
catalogResourcesResponse.mockRejectedValue({ message: errorMessage });
await createComponent();
});
it('does not increment the page and calls createAlert', async () => {
expect(findCiResourcesList().props().currentPage).toBe(1);
findCiResourcesList().vm.$emit('onNextPage');
await waitForPromises();
expect(findCiResourcesList().props().currentPage).toBe(1);
expect(createAlert).toHaveBeenCalledWith({ message: errorMessage, variant: 'danger' });
});
});
describe('for previous page', () => {
beforeEach(async () => {
// Initial query
catalogResourcesResponse.mockResolvedValueOnce(catalogResponseBody);
// When clicking on next
catalogResourcesResponse.mockResolvedValueOnce(catalogResponseBody);
// when clicking on previous
catalogResourcesResponse.mockRejectedValue({ message: errorMessage });
await createComponent();
});
it('does not decrement the page and calls createAlert', async () => {
expect(findCiResourcesList().props().currentPage).toBe(1);
findCiResourcesList().vm.$emit('onNextPage');
await waitForPromises();
expect(findCiResourcesList().props().currentPage).toBe(2);
findCiResourcesList().vm.$emit('onPrevPage');
await waitForPromises();
expect(findCiResourcesList().props().currentPage).toBe(2);
expect(createAlert).toHaveBeenCalledWith({ message: errorMessage, variant: 'danger' });
});
});
});
});
});
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