overleaf/libraries/overleaf-editor-core/test/change.test.js

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'use strict'
const { expect } = require('chai')
const core = require('..')
const Change = core.Change
const File = core.File
const Operation = core.Operation
describe('Change', function () {
describe('findBlobHashes', function () {
it('finds blob hashes from operations', function () {
const blobHashes = new Set()
const change = Change.fromRaw({
operations: [],
timestamp: '2015-03-05T12:03:53.035Z',
authors: [null],
})
change.findBlobHashes(blobHashes)
expect(blobHashes.size).to.equal(0)
// AddFile with content doesn't have a hash.
change.pushOperation(Operation.addFile('a.txt', File.fromString('a')))
change.findBlobHashes(blobHashes)
expect(blobHashes.size).to.equal(0)
// AddFile with hash should give us a hash.
change.pushOperation(
Operation.addFile('b.txt', File.fromHash(File.EMPTY_FILE_HASH))
)
change.findBlobHashes(blobHashes)
expect(blobHashes.size).to.equal(1)
expect(blobHashes.has(File.EMPTY_FILE_HASH)).to.be.true
})
})
describe('RestoreFileOrigin', function () {
it('should convert to and from raw', function () {
const origin = new core.RestoreFileOrigin(1, 'path', new Date())
const raw = origin.toRaw()
const newOrigin = core.Origin.fromRaw(raw)
expect(newOrigin).to.eql(origin)
})
it('change should have a correct origin class', function () {
const change = Change.fromRaw({
operations: [],
timestamp: '2015-03-05T12:03:53.035Z',
authors: [null],
origin: {
kind: 'file-restore',
version: 1,
path: 'path',
timestamp: '2015-03-05T12:03:53.035Z',
},
})
expect(change.getOrigin()).to.be.an.instanceof(core.RestoreFileOrigin)
})
})
})