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4101f4efeb
* implement in-house sha1 hash function * add comment * add test description Co-authored-by: Antoine Clausse <antoine.clausse@overleaf.com> * add more tests * dedupe test strings and remove unneeded toString calls --------- Co-authored-by: Antoine Clausse <antoine.clausse@overleaf.com> GitOrigin-RevId: aa3f5ab3ff412696c715521381eebf176f503197
80 lines
2.4 KiB
JavaScript
80 lines
2.4 KiB
JavaScript
import { expect } from 'chai'
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import { generateSHA1Hash } from '../../../../frontend/js/shared/utils/sha1'
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function generateRandomString(length) {
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const characters =
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'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789'
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let result = ''
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const charactersLength = characters.length
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for (let i = 0; i < length; i++) {
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result += characters.charAt(Math.floor(Math.random() * charactersLength))
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}
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return result
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}
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function generateMultipleRandomStrings(numStrings, maxLength) {
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const randomStrings = []
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for (let i = 0; i < numStrings; i++) {
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const length = Math.floor(Math.random() * maxLength)
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randomStrings.push(generateRandomString(length))
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}
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return [...new Set(randomStrings)]
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}
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describe('sha1', function () {
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describe('generateSHA1Hash', function () {
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const strings = generateMultipleRandomStrings(100, 1000)
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it('generates 40 base16 characters', function () {
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for (const str of strings)
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expect(generateSHA1Hash(str)).to.match(/^[\da-f]{40}$/)
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})
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it("doesn't have collisions on a small set", function () {
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expect(new Set(strings.map(generateSHA1Hash)).size).to.equal(
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strings.length
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)
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})
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it('sample string 1', function () {
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expect(generateSHA1Hash('sample string 1')).to.equal(
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'135028161629af5901ea2f15554730dc0de38a01'
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)
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})
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it('sample string 2', function () {
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expect(generateSHA1Hash('sample string 2')).to.equal(
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'db9460374e49a7c737b609c2fb37302381f345d6'
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)
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})
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it('abc', function () {
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expect(generateSHA1Hash('abc')).to.equal(
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'a9993e364706816aba3e25717850c26c9cd0d89d'
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)
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})
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it('generates a sha1 for an empty string', function () {
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expect(generateSHA1Hash('')).to.equal(
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'da39a3ee5e6b4b0d3255bfef95601890afd80709'
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)
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})
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it('abcdbcdecdefdefgefghfghighijhijkijkljklmklmnlmnomnopnopq', function () {
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expect(
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generateSHA1Hash(
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'abcdbcdecdefdefgefghfghighijhijkijkljklmklmnlmnomnopnopq'
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)
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).to.equal('84983e441c3bd26ebaae4aa1f95129e5e54670f1')
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})
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it('abcdefghbcdefghicdefghijdefghijkefghijklfghijklmghijklmnhijklmnoijklmnopjklmnopqklmnopqrlmnopqrsmnopqrstnopqrstu', function () {
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expect(
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generateSHA1Hash(
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'abcdefghbcdefghicdefghijdefghijkefghijklfghijklmghijklmnhijklmnoijklmnopjklmnopqklmnopqrlmnopqrsmnopqrstnopqrstu'
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)
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).to.equal('a49b2446a02c645bf419f995b67091253a04a259')
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})
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})
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})
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