29 lines
988 B
JavaScript
29 lines
988 B
JavaScript
const { expect } = require('chai')
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const {
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stringSimilarity,
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} = require('../../../../app/src/Features/Helpers/DiffHelper')
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describe('DiffHelper', function () {
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describe('stringSimilarity', function () {
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it('should have a ratio of 1 for identical strings', function () {
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expect(stringSimilarity('abcdef', 'abcdef')).to.equal(1.0)
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})
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it('should have a ratio of 0 for completely different strings', function () {
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expect(stringSimilarity('abcdef', 'qmglzxv')).to.equal(0.0)
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})
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it('should have a ratio of between 0 and 1 for strings that are similar', function () {
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const ratio = stringSimilarity('abcdef', 'abcdef@zxvkp')
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expect(ratio).to.equal(0.66)
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})
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it('should reject non-string inputs', function () {
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expect(() => stringSimilarity(1, 'abc')).to.throw
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expect(() => stringSimilarity('abc', 2)).to.throw
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expect(() => stringSimilarity('abc', new Array(1000).fill('a').join('')))
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.to.throw
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})
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})
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})
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