91 lines
3.2 KiB
JavaScript
91 lines
3.2 KiB
JavaScript
import { getLayersArray, topoSort } from 'src/services/theme_data/theme_data.service.js'
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describe('Theme Data utility functions', () => {
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describe('getLayersArray', () => {
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const fixture = {
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layer1: null,
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layer2: 'layer1',
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layer3a: 'layer2',
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layer3b: 'layer2'
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}
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it('should expand layers properly (3b)', () => {
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const out = getLayersArray('layer3b', fixture)
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expect(out).to.eql(['layer1', 'layer2', 'layer3b'])
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})
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it('should expand layers properly (3a)', () => {
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const out = getLayersArray('layer3a', fixture)
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expect(out).to.eql(['layer1', 'layer2', 'layer3a'])
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})
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it('should expand layers properly (2)', () => {
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const out = getLayersArray('layer2', fixture)
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expect(out).to.eql(['layer1', 'layer2'])
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})
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it('should expand layers properly (1)', () => {
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const out = getLayersArray('layer1', fixture)
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expect(out).to.eql(['layer1'])
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})
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})
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describe('topoSort', () => {
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const fixture1 = {
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layerA: [],
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layer1A: ['layerA'],
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layer2A: ['layer1A'],
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layerB: [],
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layer1B: ['layerB'],
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layer2B: ['layer1B'],
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layer3AB: ['layer2B', 'layer2A']
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}
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// Same thing but messed up order
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const fixture2 = {
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layer1A: ['layerA'],
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layer1B: ['layerB'],
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layer2A: ['layer1A'],
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layerB: [],
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layer3AB: ['layer2B', 'layer2A'],
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layer2B: ['layer1B'],
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layerA: []
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}
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it('should make a topologically sorted array', () => {
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const out = topoSort(fixture1, (node, inheritance) => inheritance[node])
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// This basically checks all ordering that matters
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expect(out.indexOf('layerA')).to.be.below(out.indexOf('layer1A'))
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expect(out.indexOf('layer1A')).to.be.below(out.indexOf('layer2A'))
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expect(out.indexOf('layerB')).to.be.below(out.indexOf('layer1B'))
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expect(out.indexOf('layer1B')).to.be.below(out.indexOf('layer2B'))
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expect(out.indexOf('layer2A')).to.be.below(out.indexOf('layer3AB'))
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expect(out.indexOf('layer2B')).to.be.below(out.indexOf('layer3AB'))
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})
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it('order in object shouldn\'t matter', () => {
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const out = topoSort(fixture2, (node, inheritance) => inheritance[node])
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// This basically checks all ordering that matters
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expect(out.indexOf('layerA')).to.be.below(out.indexOf('layer1A'))
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expect(out.indexOf('layer1A')).to.be.below(out.indexOf('layer2A'))
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expect(out.indexOf('layerB')).to.be.below(out.indexOf('layer1B'))
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expect(out.indexOf('layer1B')).to.be.below(out.indexOf('layer2B'))
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expect(out.indexOf('layer2A')).to.be.below(out.indexOf('layer3AB'))
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expect(out.indexOf('layer2B')).to.be.below(out.indexOf('layer3AB'))
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})
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it('dependentless nodes should be first', () => {
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const out = topoSort(fixture2, (node, inheritance) => inheritance[node])
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// This basically checks all ordering that matters
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expect(out.indexOf('layerA')).to.eql(0)
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expect(out.indexOf('layerB')).to.eql(1)
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})
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it('ignores cyclic dependencies', () => {
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const out = topoSort({ a: 'b', b: 'a', c: 'a' }, (node, inheritance) => [inheritance[node]])
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expect(out.indexOf('a')).to.be.below(out.indexOf('c'))
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})
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})
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})
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