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Merge pull request #17282 from overleaf/bg-object-id-unit-tests-ii
add unit tests for ObjectId comparison with chai and sinon GitOrigin-RevId: e23156f6fd95f37d447f7569a01916c71bf04ede
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4 changed files with 169 additions and 20 deletions
3
services/web/test/acceptance/bootstrap.js
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3
services/web/test/acceptance/bootstrap.js
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@ -6,3 +6,6 @@ chai.use(require('chai-exclude'))
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// Do not truncate assertion errors
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chai.config.truncateThreshold = 0
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// ensure every ObjectId has the id string as a property for correct comparisons
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require('mongodb').ObjectId.cacheHexString = true
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4
services/web/test/unit/bootstrap.js
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4
services/web/test/unit/bootstrap.js
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@ -22,6 +22,9 @@ chai.config.truncateThreshold = 0
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// add support for mongoose in sinon
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require('sinon-mongoose')
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// ensure every ObjectId has the id string as a property for correct comparisons
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require('mongodb').ObjectId.cacheHexString = true
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/*
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* Global stubs
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*/
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@ -78,6 +81,7 @@ function getSandboxedModuleRequires() {
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'sanitize-html',
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'sshpk',
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'xml2js',
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'mongodb',
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]
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for (const modulePath of internalModules) {
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requires[Path.resolve(__dirname, modulePath)] = require(modulePath)
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@ -1,24 +1,14 @@
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const { expect } = require('chai')
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const SandboxedModule = require('sandboxed-module')
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const { ObjectId } = require('mongodb')
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const sinon = require('sinon')
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const MODULE_PATH =
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'../../../../app/src/Features/Project/FolderStructureBuilder'
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const MOCK_OBJECT_ID = new ObjectId('657306930a1cf28031c358da')
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describe('FolderStructureBuilder', function () {
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beforeEach(function () {
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this.FolderStructureBuilder = SandboxedModule.require(MODULE_PATH, {
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requires: {
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mongodb: {
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ObjectId: class {
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constructor() {
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return MOCK_OBJECT_ID
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}
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},
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},
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},
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})
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this.FolderStructureBuilder = SandboxedModule.require(MODULE_PATH, {})
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})
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describe('buildFolderStructure', function () {
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@ -28,8 +18,8 @@ describe('FolderStructureBuilder', function () {
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})
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it('returns an empty root folder', function () {
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expect(this.result).to.deep.equal({
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_id: MOCK_OBJECT_ID,
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sinon.assert.match(this.result, {
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_id: sinon.match.instanceOf(ObjectId),
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name: 'rootFolder',
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folders: [],
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docs: [],
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@ -61,14 +51,14 @@ describe('FolderStructureBuilder', function () {
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})
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it('returns a full folder structure', function () {
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expect(this.result).to.deep.equal({
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_id: MOCK_OBJECT_ID,
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sinon.assert.match(this.result, {
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_id: sinon.match.instanceOf(ObjectId),
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name: 'rootFolder',
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docs: [{ _id: 'doc-1', name: 'main.tex' }],
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fileRefs: [{ _id: 'file-1', name: 'aaa.jpg' }],
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folders: [
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{
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_id: MOCK_OBJECT_ID,
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_id: sinon.match.instanceOf(ObjectId),
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name: 'foo',
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docs: [
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{ _id: 'doc-2', name: 'other.tex' },
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@ -77,13 +67,13 @@ describe('FolderStructureBuilder', function () {
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fileRefs: [{ _id: 'file-2', name: 'bbb.jpg' }],
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folders: [
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{
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_id: MOCK_OBJECT_ID,
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_id: sinon.match.instanceOf(ObjectId),
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name: 'foo1',
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docs: [],
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fileRefs: [],
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folders: [
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{
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_id: MOCK_OBJECT_ID,
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_id: sinon.match.instanceOf(ObjectId),
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name: 'foo2',
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docs: [{ _id: 'doc-4', name: 'another.tex' }],
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fileRefs: [],
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@ -94,7 +84,7 @@ describe('FolderStructureBuilder', function () {
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],
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},
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{
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_id: MOCK_OBJECT_ID,
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_id: sinon.match.instanceOf(ObjectId),
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name: 'bar',
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docs: [],
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fileRefs: [{ _id: 'file-3', name: 'ccc.jpg' }],
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152
services/web/test/unit/src/infrastructure/MongodbTests.js
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152
services/web/test/unit/src/infrastructure/MongodbTests.js
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@ -0,0 +1,152 @@
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const { ObjectId } = require('mongodb')
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const { expect } = require('chai')
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const sinon = require('sinon')
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describe('Mongo ObjectId comparison', function () {
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const ObjectId1 = new ObjectId('111111111111111111111111')
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const ObjectId2 = new ObjectId('65d8607441ef95170e89bd2a')
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const ObjectId1a = new ObjectId('111111111111111111111111')
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const ObjectId1b = new ObjectId('111111111111111111111111')
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const string1 = ObjectId1.toString()
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const string2 = ObjectId2.toString()
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const number1 = Number(ObjectId1)
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const repr1 = 'new ObjectId("111111111111111111111111")'
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describe('using chai', function () {
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describe('equal (===)', function () {
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it('object ids should equal themselves', function () {
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expect(ObjectId1).to.equal(ObjectId1)
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expect(ObjectId2).to.equal(ObjectId2)
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})
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it('different objects with the same id should not be equal', function () {
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expect(ObjectId1a).to.not.equal(ObjectId1b)
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})
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it('different object ids should not be equal', function () {
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expect(ObjectId1).to.not.equal(ObjectId2)
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})
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it('object id should not equal a string with the same id (left operand)', function () {
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expect(ObjectId1).to.not.equal(string1)
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})
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it('object id should not equal a string with the same id (right operand)', function () {
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expect(string1).to.not.equal(ObjectId1)
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})
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it('object id should not equal a string with a different id', function () {
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expect(ObjectId1).to.not.equal(string2)
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})
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it('object id should not equal a number with the same id (left operand)', function () {
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expect(ObjectId1).to.not.equal(number1)
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})
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it('object id should not equal a number with the same id (right operand)', function () {
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expect(number1).to.not.equal(ObjectId1)
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})
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it('object id should not equal the string representation with the same id (left operand)', function () {
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expect(ObjectId1).to.not.equal(repr1)
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})
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it('object id should not equal the string representation with the same id (right operand)', function () {
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expect(repr1).to.not.equal(ObjectId1)
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})
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})
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describe('deep equal', function () {
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it('object ids should deep equal themselves', function () {
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expect(ObjectId1).to.deep.equal(ObjectId1)
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expect(ObjectId2).to.deep.equal(ObjectId2)
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})
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it('different objects with the same id should be deep equal', function () {
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expect(ObjectId1a).to.deep.equal(ObjectId1b)
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})
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it('different object ids should not be deep equal', function () {
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expect(ObjectId1).to.not.deep.equal(ObjectId2)
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})
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it('object id should not deep equal a string with the same id (left operand)', function () {
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expect(ObjectId1).to.not.deep.equal(string1)
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})
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it('object id should not deep equal a string with the same id (right operand)', function () {
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expect(string1).to.not.deep.equal(ObjectId1)
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})
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it('object id should not deep equal a string with a different id', function () {
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expect(ObjectId1).to.not.deep.equal(string2)
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})
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it('object id should not deep equal a number with the same id (left operand)', function () {
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expect(ObjectId1).to.not.deep.equal(number1)
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})
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it('object id should not deep equal a number with the same id (right operand)', function () {
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expect(number1).to.not.deep.equal(ObjectId1)
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})
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it('object id should not deep equal the string representation with the same id (left operand)', function () {
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expect(ObjectId1).to.not.deep.equal(repr1)
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})
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it('object id should not deep equal the string representation with the same id (right operand)', function () {
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expect(repr1).to.not.deep.equal(ObjectId1)
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})
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})
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})
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describe('using sinon', function () {
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describe('match', function () {
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it('object ids should match themselves', function () {
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sinon.assert.match(ObjectId1, ObjectId1)
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sinon.assert.match(ObjectId2, ObjectId2)
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})
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it('different objects with the same id should match', function () {
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sinon.assert.match(ObjectId1a, ObjectId1b)
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})
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it('different object ids should not match', function () {
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expect(() => {
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sinon.assert.match(ObjectId1, ObjectId2)
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}).to.throw()
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})
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it('object id should not match a string with the same id (left operand)', function () {
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expect(() => {
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sinon.assert.match(ObjectId1, string1)
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}).to.throw()
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})
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it('object id should not match a string with the same id (right operand)', function () {
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expect(() => {
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sinon.assert.match(string1, ObjectId1)
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}).to.throw()
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})
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it('object id should not match a string with a different id', function () {
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expect(() => {
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sinon.assert.match(ObjectId1, string2)
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}).to.throw()
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})
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it('object id should not match a number with the same id (left operand)', function () {
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// This assertion fails because ObjectId2 becomes NaN when coerced to a number.
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expect(() => {
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sinon.assert.match(ObjectId2, 123)
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}).to.throw()
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})
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it('object id should not match a number with the same id (left operand) but does match when the ObjectId has decimal digits only', function () {
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// We would want this assertion to fail, but ObjectId1 becomes 1.1111...e+23
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// when coerced to a number, and this can match a number with the same value.
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//
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// For an(object, number) comparison sinon coerces the object to a number using ==
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// which takes the string representation of the object id and converts it to a number
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// via .valueOf. Most of the time this gives NaN because the object ids
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// are hexadecimal but if the ObjectId is a valid **decimal** number then it will
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// be coerced to that number. This behaviour is by design in sinon but I think we
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// can live with it because it is unlikely that we will compare an ObjectId to a
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// number and get a false positive.
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expect(() => {
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sinon.assert.match(ObjectId1, number1)
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}).to.not.throw()
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})
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it('object id should not match a number with the same id (right operand)', function () {
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expect(() => {
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sinon.assert.match(number1, ObjectId1)
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}).to.throw()
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})
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it('object id should not match the string representation with the same id (left operand)', function () {
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expect(() => {
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sinon.assert.match(ObjectId1, repr1)
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}).to.throw()
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})
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it('object id should not match the string representation with the same id (right operand)', function () {
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expect(() => {
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sinon.assert.match(repr1, ObjectId1)
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}).to.throw()
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})
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})
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})
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})
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