50 lines
1.3 KiB
TypeScript
50 lines
1.3 KiB
TypeScript
import { Edge, TreeNodeFactory } from '../'
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import { expect } from 'chai'
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import 'mocha'
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describe('Edge', () => {
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it('should contain a name', () => {
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const e = new Edge('foo')
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expect(e.name).to.equal('foo')
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})
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it('firstEdge should retrieve the first edge', () => {
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const topics = 'foo/bar/baz'.split('/')
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const leaf = TreeNodeFactory.fromEdgesAndValue(topics, undefined)
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const bazEdge = leaf.sourceEdge
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if (!bazEdge) {
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expect.fail('should not be undefined')
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return
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}
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expect(bazEdge.name).to.eq('baz')
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expect(bazEdge.firstEdge().name).to.eq('foo')
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})
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it('hash should not be empty', () => {
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const e = new Edge('bar')
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expect(e.hash().length).to.be.gt(0)
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})
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it('hash should be stable', () => {
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const e = new Edge('bar')
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const previousHash = e.hash()
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expect(e.hash()).to.eq(previousHash)
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})
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it('hash should include change if parents are different', () => {
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const topics1 = 'foo/bar/baz'.split('/')
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const bazEdge1 = TreeNodeFactory.fromEdgesAndValue(topics1, undefined).sourceEdge
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const topics2 = 'foo/foo/baz'.split('/')
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const bazEdge2 = TreeNodeFactory.fromEdgesAndValue(topics2, undefined).sourceEdge
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if (!bazEdge1 || !bazEdge2) {
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throw Error('should not happen')
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}
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expect(bazEdge1.hash()).to.not.eq(bazEdge2.hash())
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})
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})
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