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import { GlAlert, GlListbox, GlListboxItem } from '@gitlab/ui';
import { GlAreaChart } from '@gitlab/ui/dist/charts';
import { shallowMount } from '@vue/test-utils';
import MockAdapter from 'axios-mock-adapter';
import { nextTick } from 'vue';
import waitForPromises from 'helpers/wait_for_promises';
import axios from '~/lib/utils/axios_utils';
import { HTTP_STATUS_BAD_REQUEST, HTTP_STATUS_OK } from '~/lib/utils/http_status';
import CodeCoverage from '~/pages/projects/graphs/components/code_coverage.vue';
import { codeCoverageMockData, sortedDataByDates } from './mock_data';
describe('Code Coverage', () => {
let wrapper;
let mockAxios;
const graphEndpoint = '/graph';
const graphStartDate = '13 February';
const graphEndDate = '12 May';
const graphRef = 'master';
const graphCsvPath = 'url/';
const findAlert = () => wrapper.findComponent(GlAlert);
const findAreaChart = () => wrapper.findComponent(GlAreaChart);
const findListBox = () => wrapper.findComponent(GlListbox);
const findListBoxItems = () => wrapper.findAllComponents(GlListboxItem);
const findFirstListBoxItem = () => findListBoxItems().at(0);
const findSecondListBoxItem = () => findListBoxItems().at(1);
const findDownloadButton = () => wrapper.find('[data-testid="download-button"]');
const createComponent = () => {
wrapper = shallowMount(CodeCoverage, {
propsData: {
graphEndpoint,
graphStartDate,
graphEndDate,
graphRef,
graphCsvPath,
},
stubs: { GlListbox },
});
};
afterEach(() => {
wrapper.destroy();
wrapper = null;
});
describe('when fetching data is successful', () => {
beforeEach(() => {
mockAxios = new MockAdapter(axios);
mockAxios.onGet().replyOnce(HTTP_STATUS_OK, codeCoverageMockData);
createComponent();
return waitForPromises();
});
afterEach(() => {
mockAxios.restore();
});
it('renders the area chart', () => {
expect(findAreaChart().exists()).toBe(true);
});
it('sorts the dates in ascending order', () => {
expect(wrapper.vm.sortedData).toEqual(sortedDataByDates);
});
it('matches the snapshot', () => {
expect(wrapper.element).toMatchSnapshot();
});
it('shows no error messages', () => {
expect(findAlert().exists()).toBe(false);
});
it('does not render download button', () => {
expect(findDownloadButton().exists()).toBe(true);
});
});
describe('when fetching data fails', () => {
beforeEach(() => {
mockAxios = new MockAdapter(axios);
mockAxios.onGet().replyOnce(HTTP_STATUS_BAD_REQUEST);
createComponent();
return waitForPromises();
});
afterEach(() => {
mockAxios.restore();
});
it('renders an error message', () => {
expect(findAlert().exists()).toBe(true);
expect(findAlert().attributes().variant).toBe('danger');
});
it('still renders an empty graph', () => {
expect(findAreaChart().exists()).toBe(true);
});
});
describe('when fetching data succeed but returns an empty state', () => {
beforeEach(() => {
mockAxios = new MockAdapter(axios);
mockAxios.onGet().replyOnce(HTTP_STATUS_OK, []);
createComponent();
return waitForPromises();
});
afterEach(() => {
mockAxios.restore();
});
it('renders an information message', () => {
expect(findAlert().exists()).toBe(true);
expect(findAlert().attributes().variant).toBe('info');
});
it('still renders an empty graph', () => {
expect(findAreaChart().exists()).toBe(true);
});
it('does not render download button', () => {
expect(findDownloadButton().exists()).toBe(false);
});
});
describe('dropdown options', () => {
beforeEach(() => {
mockAxios = new MockAdapter(axios);
mockAxios.onGet().replyOnce(HTTP_STATUS_OK, codeCoverageMockData);
createComponent();
return waitForPromises();
});
it('renders the dropdown with all custom names as options', () => {
expect(findListBox().exists()).toBe(true);
expect(findListBoxItems()).toHaveLength(codeCoverageMockData.length);
expect(findFirstListBoxItem().text()).toBe(codeCoverageMockData[0].group_name);
});
});
describe('interactions', () => {
beforeEach(() => {
mockAxios = new MockAdapter(axios);
mockAxios.onGet().replyOnce(HTTP_STATUS_OK, codeCoverageMockData);
createComponent();
return waitForPromises();
});
it('updates the selected dropdown option with an icon', async () => {
findListBox().vm.$emit('select', '1');
await nextTick();
expect(findFirstListBoxItem().attributes('isselected')).toBeUndefined();
expect(findSecondListBoxItem().attributes('isselected')).toBe('true');
});
it('updates the graph data when selecting a different option in dropdown', async () => {
const originalSelectedData = wrapper.vm.selectedDailyCoverage;
const expectedData = codeCoverageMockData[1];
findListBox().vm.$emit('select', '1');
await nextTick();
expect(wrapper.vm.selectedDailyCoverage).not.toBe(originalSelectedData);
expect(wrapper.vm.selectedDailyCoverage).toBe(expectedData);
});
});
});
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