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import { GlSkeletonLoader } from '@gitlab/ui';
import { shallowMountExtended } from 'helpers/vue_test_utils_helper';
import ObservabilitySkeleton from '~/observability/components/skeleton/index.vue';
import DashboardsSkeleton from '~/observability/components/skeleton/dashboards.vue';
import ExploreSkeleton from '~/observability/components/skeleton/explore.vue';
import ManageSkeleton from '~/observability/components/skeleton/manage.vue';
import { SKELETON_VARIANT } from '~/observability/constants';
describe('ObservabilitySkeleton component', () => {
let wrapper;
const mountComponent = ({ ...props } = {}) => {
wrapper = shallowMountExtended(ObservabilitySkeleton, {
propsData: props,
});
};
afterEach(() => {
wrapper.destroy();
wrapper = null;
});
describe('on mount', () => {
beforeEach(() => {
jest.spyOn(global, 'setTimeout');
mountComponent();
});
it('should call setTimeout on mount and show ObservabilitySkeleton if Observability UI is not loaded yet', () => {
jest.runAllTimers();
expect(setTimeout).toHaveBeenCalledWith(expect.any(Function), 500);
expect(wrapper.vm.loading).toBe(true);
expect(wrapper.vm.timerId).not.toBeNull();
});
it('should call setTimeout on mount and dont show ObservabilitySkeleton if Observability UI is loaded', () => {
wrapper.vm.loading = false;
jest.runAllTimers();
expect(setTimeout).toHaveBeenCalledWith(expect.any(Function), 500);
expect(wrapper.vm.loading).toBe(false);
expect(wrapper.vm.timerId).not.toBeNull();
});
});
describe('handleSkeleton', () => {
it('will not show the skeleton if Observability UI is loaded before', () => {
jest.spyOn(global, 'clearTimeout');
mountComponent();
wrapper.vm.handleSkeleton();
expect(clearTimeout).toHaveBeenCalledWith(wrapper.vm.timerId);
});
it('will hide skeleton gracefully after 400ms if skeleton was present on screen before Observability UI', () => {
jest.spyOn(global, 'setTimeout');
mountComponent();
jest.runAllTimers();
wrapper.vm.handleSkeleton();
jest.runAllTimers();
expect(setTimeout).toHaveBeenCalledWith(wrapper.vm.hideSkeleton, 400);
expect(wrapper.vm.loading).toBe(false);
});
});
describe('skeleton variant', () => {
it.each`
skeletonType | condition | variant
${'dashboards'} | ${'variant is dashboards'} | ${SKELETON_VARIANT.DASHBOARDS}
${'explore'} | ${'variant is explore'} | ${SKELETON_VARIANT.EXPLORE}
${'manage'} | ${'variant is manage'} | ${SKELETON_VARIANT.MANAGE}
${'default'} | ${'variant is not manage, dashboards or explore'} | ${'unknown'}
`('should render $skeletonType skeleton if $condition', async ({ skeletonType, variant }) => {
mountComponent({ variant });
const showsDefaultSkeleton = ![
SKELETON_VARIANT.DASHBOARDS,
SKELETON_VARIANT.EXPLORE,
SKELETON_VARIANT.MANAGE,
].includes(variant);
expect(wrapper.findComponent(DashboardsSkeleton).exists()).toBe(
skeletonType === SKELETON_VARIANT.DASHBOARDS,
);
expect(wrapper.findComponent(ExploreSkeleton).exists()).toBe(
skeletonType === SKELETON_VARIANT.EXPLORE,
);
expect(wrapper.findComponent(ManageSkeleton).exists()).toBe(
skeletonType === SKELETON_VARIANT.MANAGE,
);
expect(wrapper.findComponent(GlSkeletonLoader).exists()).toBe(showsDefaultSkeleton);
});
});
});
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