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import {
createNodeDict,
makeLinksFromNodes,
filterByAncestors,
parseData,
removeOrphanNodes,
getMaxNodes,
} from '~/pipelines/components/parsing_utils';
import { createSankey } from '~/pipelines/components/dag/drawing_utils';
import { mockParsedGraphQLNodes } from './mock_data';
describe('DAG visualization parsing utilities', () => {
const nodeDict = createNodeDict(mockParsedGraphQLNodes);
const unfilteredLinks = makeLinksFromNodes(mockParsedGraphQLNodes, nodeDict);
const parsed = parseData(mockParsedGraphQLNodes);
describe('makeLinksFromNodes', () => {
it('returns the expected link structure', () => {
expect(unfilteredLinks[0]).toHaveProperty('source', 'build_a');
expect(unfilteredLinks[0]).toHaveProperty('target', 'test_a');
expect(unfilteredLinks[0]).toHaveProperty('value', 10);
});
});
describe('filterByAncestors', () => {
const allLinks = [
{ source: 'job1', target: 'job4' },
{ source: 'job1', target: 'job2' },
{ source: 'job2', target: 'job4' },
];
const dedupedLinks = [{ source: 'job1', target: 'job2' }, { source: 'job2', target: 'job4' }];
const nodeLookup = {
job1: {
name: 'job1',
},
job2: {
name: 'job2',
needs: ['job1'],
},
job4: {
name: 'job4',
needs: ['job1', 'job2'],
category: 'build',
},
};
it('dedupes links', () => {
expect(filterByAncestors(allLinks, nodeLookup)).toMatchObject(dedupedLinks);
});
});
describe('parseData parent function', () => {
it('returns an object containing a list of nodes and links', () => {
// an array of nodes exist and the values are defined
expect(parsed).toHaveProperty('nodes');
expect(Array.isArray(parsed.nodes)).toBe(true);
expect(parsed.nodes.filter(Boolean)).not.toHaveLength(0);
// an array of links exist and the values are defined
expect(parsed).toHaveProperty('links');
expect(Array.isArray(parsed.links)).toBe(true);
expect(parsed.links.filter(Boolean)).not.toHaveLength(0);
});
});
describe('removeOrphanNodes', () => {
it('removes sankey nodes that have no needs and are not needed', () => {
const layoutSettings = {
width: 200,
height: 200,
nodeWidth: 10,
nodePadding: 20,
paddingForLabels: 100,
};
const sankeyLayout = createSankey(layoutSettings)(parsed);
const cleanedNodes = removeOrphanNodes(sankeyLayout.nodes);
/*
These lengths are determined by the mock data.
If the data changes, the numbers may also change.
*/
expect(parsed.nodes).toHaveLength(21);
expect(cleanedNodes).toHaveLength(12);
});
});
describe('getMaxNodes', () => {
it('returns the number of nodes in the most populous generation', () => {
const layerNodes = [
{ layer: 0 },
{ layer: 0 },
{ layer: 1 },
{ layer: 1 },
{ layer: 0 },
{ layer: 3 },
{ layer: 2 },
{ layer: 4 },
{ layer: 1 },
{ layer: 3 },
{ layer: 4 },
];
expect(getMaxNodes(layerNodes)).toBe(3);
});
});
});
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