214 lines
8 KiB
JavaScript
214 lines
8 KiB
JavaScript
import { shallowMount } from '@vue/test-utils';
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import DagGraph from '~/pipelines/components/dag/dag_graph.vue';
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import { IS_HIGHLIGHTED, LINK_SELECTOR, NODE_SELECTOR } from '~/pipelines/components/dag/constants';
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import { highlightIn, highlightOut } from '~/pipelines/components/dag/interactions';
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import { createSankey } from '~/pipelines/components/dag/drawing_utils';
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import { removeOrphanNodes } from '~/pipelines/components/parsing_utils';
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import { parsedData } from './mock_data';
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describe('The DAG graph', () => {
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let wrapper;
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const getGraph = () => wrapper.find('.dag-graph-container > svg');
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const getAllLinks = () => wrapper.findAll(`.${LINK_SELECTOR}`);
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const getAllNodes = () => wrapper.findAll(`.${NODE_SELECTOR}`);
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const getAllLabels = () => wrapper.findAll('foreignObject');
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const createComponent = (propsData = {}) => {
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if (wrapper?.destroy) {
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wrapper.destroy();
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}
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wrapper = shallowMount(DagGraph, {
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attachTo: document.body,
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propsData,
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data() {
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return {
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color: () => {},
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width: 0,
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height: 0,
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};
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},
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});
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};
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beforeEach(() => {
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createComponent({ graphData: parsedData });
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});
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afterEach(() => {
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wrapper.destroy();
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wrapper = null;
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});
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describe('in the basic case', () => {
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beforeEach(() => {
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/*
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The graph uses random to offset links. To keep the snapshot consistent,
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we mock Math.random. Wheeeee!
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*/
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const randomNumber = jest.spyOn(global.Math, 'random');
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randomNumber.mockImplementation(() => 0.2);
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createComponent({ graphData: parsedData });
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});
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it('renders the graph svg', () => {
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expect(getGraph().exists()).toBe(true);
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expect(getGraph().html()).toMatchSnapshot();
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});
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});
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describe('links', () => {
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it('renders the expected number of links', () => {
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expect(getAllLinks()).toHaveLength(parsedData.links.length);
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});
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it('renders the expected number of gradients', () => {
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expect(wrapper.findAll('linearGradient')).toHaveLength(parsedData.links.length);
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});
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it('renders the expected number of clip paths', () => {
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expect(wrapper.findAll('clipPath')).toHaveLength(parsedData.links.length);
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});
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});
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describe('nodes and labels', () => {
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const sankeyNodes = createSankey()(parsedData).nodes;
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const processedNodes = removeOrphanNodes(sankeyNodes);
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describe('nodes', () => {
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it('renders the expected number of nodes', () => {
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expect(getAllNodes()).toHaveLength(processedNodes.length);
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});
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});
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describe('labels', () => {
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it('renders the expected number of labels as foreignObjects', () => {
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expect(getAllLabels()).toHaveLength(processedNodes.length);
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});
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it('renders the title as text', () => {
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expect(getAllLabels().at(0).text()).toBe(parsedData.nodes[0].name);
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});
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});
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});
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describe('interactions', () => {
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const strokeOpacity = (opacity) => `stroke-opacity: ${opacity};`;
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const baseOpacity = () => wrapper.vm.$options.viewOptions.baseOpacity;
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describe('links', () => {
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const liveLink = () => getAllLinks().at(4);
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const otherLink = () => getAllLinks().at(1);
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describe('on hover', () => {
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it('sets the link opacity to baseOpacity and background links to 0.2', () => {
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liveLink().trigger('mouseover');
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expect(liveLink().attributes('style')).toBe(strokeOpacity(highlightIn));
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expect(otherLink().attributes('style')).toBe(strokeOpacity(highlightOut));
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});
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it('reverts the styles on mouseout', () => {
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liveLink().trigger('mouseover');
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liveLink().trigger('mouseout');
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expect(liveLink().attributes('style')).toBe(strokeOpacity(baseOpacity()));
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expect(otherLink().attributes('style')).toBe(strokeOpacity(baseOpacity()));
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});
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});
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describe('on click', () => {
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describe('toggles link liveness', () => {
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it('turns link on', () => {
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liveLink().trigger('click');
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expect(liveLink().attributes('style')).toBe(strokeOpacity(highlightIn));
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expect(otherLink().attributes('style')).toBe(strokeOpacity(highlightOut));
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});
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it('turns link off on second click', () => {
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liveLink().trigger('click');
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liveLink().trigger('click');
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expect(liveLink().attributes('style')).toBe(strokeOpacity(baseOpacity()));
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expect(otherLink().attributes('style')).toBe(strokeOpacity(baseOpacity()));
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});
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});
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it('the link remains live even after mouseout', () => {
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liveLink().trigger('click');
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liveLink().trigger('mouseout');
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expect(liveLink().attributes('style')).toBe(strokeOpacity(highlightIn));
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expect(otherLink().attributes('style')).toBe(strokeOpacity(highlightOut));
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});
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it('preserves state when multiple links are toggled on and off', () => {
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const anotherLiveLink = () => getAllLinks().at(2);
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liveLink().trigger('click');
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anotherLiveLink().trigger('click');
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expect(liveLink().attributes('style')).toBe(strokeOpacity(highlightIn));
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expect(anotherLiveLink().attributes('style')).toBe(strokeOpacity(highlightIn));
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expect(otherLink().attributes('style')).toBe(strokeOpacity(highlightOut));
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anotherLiveLink().trigger('click');
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expect(liveLink().attributes('style')).toBe(strokeOpacity(highlightIn));
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expect(anotherLiveLink().attributes('style')).toBe(strokeOpacity(highlightOut));
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expect(otherLink().attributes('style')).toBe(strokeOpacity(highlightOut));
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liveLink().trigger('click');
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expect(liveLink().attributes('style')).toBe(strokeOpacity(baseOpacity()));
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expect(anotherLiveLink().attributes('style')).toBe(strokeOpacity(baseOpacity()));
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expect(otherLink().attributes('style')).toBe(strokeOpacity(baseOpacity()));
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});
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});
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});
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describe('nodes', () => {
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const liveNode = () => getAllNodes().at(10);
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const anotherLiveNode = () => getAllNodes().at(5);
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const nodesNotHighlighted = () => getAllNodes().filter((n) => !n.classes(IS_HIGHLIGHTED));
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const linksNotHighlighted = () => getAllLinks().filter((n) => !n.classes(IS_HIGHLIGHTED));
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const nodesHighlighted = () => getAllNodes().filter((n) => n.classes(IS_HIGHLIGHTED));
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const linksHighlighted = () => getAllLinks().filter((n) => n.classes(IS_HIGHLIGHTED));
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describe('on click', () => {
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it('highlights the clicked node and predecessors', () => {
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liveNode().trigger('click');
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expect(nodesNotHighlighted().length < getAllNodes().length).toBe(true);
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expect(linksNotHighlighted().length < getAllLinks().length).toBe(true);
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linksHighlighted().wrappers.forEach((link) => {
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expect(link.attributes('style')).toBe(strokeOpacity(highlightIn));
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});
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nodesHighlighted().wrappers.forEach((node) => {
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expect(node.attributes('stroke')).not.toBe('#f2f2f2');
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});
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linksNotHighlighted().wrappers.forEach((link) => {
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expect(link.attributes('style')).toBe(strokeOpacity(highlightOut));
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});
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nodesNotHighlighted().wrappers.forEach((node) => {
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expect(node.attributes('stroke')).toBe('#f2f2f2');
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});
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});
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it('toggles path off on second click', () => {
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liveNode().trigger('click');
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liveNode().trigger('click');
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expect(nodesNotHighlighted().length).toBe(getAllNodes().length);
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expect(linksNotHighlighted().length).toBe(getAllLinks().length);
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});
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it('preserves state when multiple nodes are toggled on and off', () => {
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anotherLiveNode().trigger('click');
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liveNode().trigger('click');
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anotherLiveNode().trigger('click');
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expect(nodesNotHighlighted().length < getAllNodes().length).toBe(true);
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expect(linksNotHighlighted().length < getAllLinks().length).toBe(true);
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});
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});
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});
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});
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});
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