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734 lines
24 KiB
734 lines
24 KiB
var Datastore = require('../lib/datastore')
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, testDb = 'workspace/test.db'
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, fs = require('fs')
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, path = require('path')
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, customUtils = require('../lib/customUtils')
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, should = require('chai').should()
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, assert = require('chai').assert
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, _ = require('underscore')
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, async = require('async')
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;
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describe('Database', function () {
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var d = new Datastore(testDb);
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beforeEach(function (done) {
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async.waterfall([
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function (cb) {
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customUtils.ensureDirectoryExists(path.dirname(testDb), function () {
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fs.exists(testDb, function (exists) {
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if (exists) {
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fs.unlink(testDb, cb);
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} else { return cb(); }
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});
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});
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}
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, function (cb) {
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d.loadDatabase(function (err) {
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assert.isNull(err);
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return cb();
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});
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}
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], done);
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});
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describe('Loading the database data from file', function () {
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it('Every line represents a document', function () {
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// TODO
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});
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}); // ==== End of 'Loading the database data from file' ==== //
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describe('Insert', function () {
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it('Able to insert a document in the database, setting an _id if none provided, and retrieve it even after a reload', function (done) {
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d.find({}, function (err, docs) {
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docs.length.should.equal(0);
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d.insert({ somedata: 'ok' }, function (err) {
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// The data was correctly updated
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d.find({}, function (err, docs) {
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assert.isNull(err);
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docs.length.should.equal(1);
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Object.keys(docs[0]).length.should.equal(2);
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docs[0].somedata.should.equal('ok');
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assert.isDefined(docs[0]._id);
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// After a reload the data has been correctly persisted
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d.loadDatabase(function (err) {
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d.find({}, function (err, docs) {
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assert.isNull(err);
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docs.length.should.equal(1);
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Object.keys(docs[0]).length.should.equal(2);
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docs[0].somedata.should.equal('ok');
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assert.isDefined(docs[0]._id);
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done();
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});
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});
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});
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});
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});
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});
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it('Can insert multiple documents in the database', function (done) {
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d.find({}, function (err, docs) {
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docs.length.should.equal(0);
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d.insert({ somedata: 'ok' }, function (err) {
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d.insert({ somedata: 'another' }, function (err) {
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d.insert({ somedata: 'again' }, function (err) {
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d.find({}, function (err, docs) {
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docs.length.should.equal(3);
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_.pluck(docs, 'somedata').should.contain('ok');
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_.pluck(docs, 'somedata').should.contain('another');
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_.pluck(docs, 'somedata').should.contain('again');
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done();
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});
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});
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});
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});
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});
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});
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it('Can insert and get back from DB complex objects with all primitive and secondary types', function (done) {
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var da = new Date()
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, obj = { a: ['ee', 'ff', 42], date: da, subobj: { a: 'b', b: 'c' } }
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;
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d.insert(obj, function (err) {
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d.findOne({}, function (err, res) {
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assert.isNull(err);
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res.a.length.should.equal(3);
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res.a[0].should.equal('ee');
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res.a[1].should.equal('ff');
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res.a[2].should.equal(42);
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res.date.getTime().should.equal(da.getTime());
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res.subobj.a.should.equal('b');
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res.subobj.b.should.equal('c');
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done();
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});
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});
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});
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it('If an object returned from the DB is modified and refetched, the original value should be found', function (done) {
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d.insert({ a: 'something' }, function () {
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d.findOne({}, function (err, doc) {
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doc.a.should.equal('something');
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doc.a = 'another thing';
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doc.a.should.equal('another thing');
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// Re-fetching with findOne should yield the persisted value
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d.findOne({}, function (err, doc) {
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doc.a.should.equal('something');
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doc.a = 'another thing';
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doc.a.should.equal('another thing');
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// Re-fetching with find should yield the persisted value
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d.find({}, function (err, docs) {
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docs[0].a.should.equal('something');
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done();
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});
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});
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});
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});
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});
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it('Cannot insert a doc that has a field beginning with a $ sign', function (done) {
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d.insert({ $something: 'atest' }, function (err) {
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assert.isDefined(err);
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done();
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});
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});
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it('If an _id is already given when we insert a document, use it and not the default uid', function (done) {
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d.insert({ _id: 'test', stuff: true }, function (err, newDoc) {
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if (err) { return done(err); }
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newDoc.stuff.should.equal(true);
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newDoc._id.should.equal('test');
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done();
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});
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});
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}); // ==== End of 'Insert' ==== //
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describe('Find', function () {
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it('Can find all documents if an empty query is used', function (done) {
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async.waterfall([
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function (cb) {
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d.insert({ somedata: 'ok' }, function (err) {
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d.insert({ somedata: 'another', plus: 'additional data' }, function (err) {
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d.insert({ somedata: 'again' }, function (err) { return cb(err); });
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});
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});
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}
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, function (cb) { // Test with empty object
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d.find({}, function (err, docs) {
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assert.isNull(err);
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docs.length.should.equal(3);
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_.pluck(docs, 'somedata').should.contain('ok');
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_.pluck(docs, 'somedata').should.contain('another');
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_.find(docs, function (d) { return d.somedata === 'another' }).plus.should.equal('additional data');
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_.pluck(docs, 'somedata').should.contain('again');
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return cb();
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});
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}
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], done);
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});
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it('Can find all documents matching a basic query', function (done) {
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async.waterfall([
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function (cb) {
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d.insert({ somedata: 'ok' }, function (err) {
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d.insert({ somedata: 'again', plus: 'additional data' }, function (err) {
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d.insert({ somedata: 'again' }, function (err) { return cb(err); });
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});
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});
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}
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, function (cb) { // Test with query that will return docs
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d.find({ somedata: 'again' }, function (err, docs) {
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assert.isNull(err);
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docs.length.should.equal(2);
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_.pluck(docs, 'somedata').should.not.contain('ok');
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return cb();
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});
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}
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, function (cb) { // Test with query that doesn't match anything
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d.find({ somedata: 'nope' }, function (err, docs) {
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assert.isNull(err);
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docs.length.should.equal(0);
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return cb();
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});
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}
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], done);
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});
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it('Can find one document matching a basic query and return null if none is found', function (done) {
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async.waterfall([
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function (cb) {
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d.insert({ somedata: 'ok' }, function (err) {
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d.insert({ somedata: 'again', plus: 'additional data' }, function (err) {
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d.insert({ somedata: 'again' }, function (err) { return cb(err); });
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});
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});
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}
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, function (cb) { // Test with query that will return docs
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d.findOne({ somedata: 'ok' }, function (err, doc) {
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assert.isNull(err);
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Object.keys(doc).length.should.equal(2);
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doc.somedata.should.equal('ok');
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assert.isDefined(doc._id);
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return cb();
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});
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}
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, function (cb) { // Test with query that doesn't match anything
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d.findOne({ somedata: 'nope' }, function (err, doc) {
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assert.isNull(err);
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assert.isNull(doc);
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return cb();
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});
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}
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], done);
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});
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it('Can find dates and objects (non JS-native types)', function (done) {
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var date1 = new Date(1234543)
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, date2 = new Date(9999)
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;
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d.insert({ now: date1, sth: { name: 'nedb' } }, function () {
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d.findOne({ now: date1 }, function (err, doc) {
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assert.isNull(err);
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doc.sth.name.should.equal('nedb');
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d.findOne({ now: date2 }, function (err, doc) {
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assert.isNull(err);
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assert.isNull(doc);
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d.findOne({ sth: { name: 'nedb' } }, function (err, doc) {
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assert.isNull(err);
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doc.sth.name.should.equal('nedb');
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d.findOne({ sth: { name: 'other' } }, function (err, doc) {
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assert.isNull(err);
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assert.isNull(doc);
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done();
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});
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});
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});
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});
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});
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});
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it('Can use dot-notation to query subfields', function (done) {
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d.insert({ greeting: { english: 'hello' } }, function () {
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d.findOne({ "greeting.english": 'hello' }, function (err, doc) {
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assert.isNull(err);
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doc.greeting.english.should.equal('hello');
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d.findOne({ "greeting.english": 'hellooo' }, function (err, doc) {
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assert.isNull(err);
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assert.isNull(doc);
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d.findOne({ "greeting.englis": 'hello' }, function (err, doc) {
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assert.isNull(err);
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assert.isNull(doc);
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done();
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});
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});
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});
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});
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});
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it('Array fields match if any element matches', function (done) {
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d.insert({ fruits: ['pear', 'apple', 'banana'] }, function (err, doc1) {
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d.insert({ fruits: ['coconut', 'orange', 'pear'] }, function (err, doc2) {
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d.insert({ fruits: ['banana'] }, function (err, doc3) {
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d.find({ fruits: 'pear' }, function (err, docs) {
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assert.isNull(err);
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docs.length.should.equal(2);
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_.pluck(docs, '_id').should.contain(doc1._id);
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_.pluck(docs, '_id').should.contain(doc2._id);
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d.find({ fruits: 'banana' }, function (err, docs) {
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assert.isNull(err);
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docs.length.should.equal(2);
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_.pluck(docs, '_id').should.contain(doc1._id);
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_.pluck(docs, '_id').should.contain(doc3._id);
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d.find({ fruits: 'doesntexist' }, function (err, docs) {
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assert.isNull(err);
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docs.length.should.equal(0);
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done();
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});
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});
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});
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});
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});
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});
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});
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it('Returns an error if the query is not well formed', function (done) {
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d.insert({ hello: 'world' }, function () {
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d.find({ $or: { hello: 'world' } }, function (err, docs) {
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assert.isDefined(err);
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assert.isUndefined(docs);
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d.findOne({ $or: { hello: 'world' } }, function (err, doc) {
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assert.isDefined(err);
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assert.isUndefined(doc);
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done();
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});
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});
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});
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});
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}); // ==== End of 'Find' ==== //
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describe('Update', function () {
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it("If the query doesn't match anything, database is not modified", function (done) {
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async.waterfall([
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function (cb) {
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d.insert({ somedata: 'ok' }, function (err) {
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d.insert({ somedata: 'again', plus: 'additional data' }, function (err) {
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d.insert({ somedata: 'another' }, function (err) { return cb(err); });
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});
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});
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}
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, function (cb) { // Test with query that doesn't match anything
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d.update({ somedata: 'nope' }, { newDoc: 'yes' }, { multi: true }, function (err, n) {
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assert.isNull(err);
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n.should.equal(0);
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d.find({}, function (err, docs) {
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var doc1 = _.find(docs, function (d) { return d.somedata === 'ok'; })
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, doc2 = _.find(docs, function (d) { return d.somedata === 'again'; })
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, doc3 = _.find(docs, function (d) { return d.somedata === 'another'; })
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;
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docs.length.should.equal(3);
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assert.isUndefined(_.find(docs, function (d) { return d.newDoc === 'yes'; }));
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Object.keys(doc1).length.should.equal(2);
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doc1.somedata.should.equal('ok');
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assert.isDefined(doc1._id);
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Object.keys(doc2).length.should.equal(3);
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doc2.somedata.should.equal('again');
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doc2.plus.should.equal('additional data');
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assert.isDefined(doc2._id);
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Object.keys(doc3).length.should.equal(2);
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doc3.somedata.should.equal('another');
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assert.isDefined(doc3._id);
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return cb();
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});
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});
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}
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], done);
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});
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it("Can update multiple documents matching the query", function (done) {
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var id1, id2, id3;
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// Test DB state after update and reload
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function testPostUpdateState (cb) {
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d.find({}, function (err, docs) {
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var doc1 = _.find(docs, function (d) { return d._id === id1; })
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, doc2 = _.find(docs, function (d) { return d._id === id2; })
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, doc3 = _.find(docs, function (d) { return d._id === id3; })
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;
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docs.length.should.equal(3);
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Object.keys(doc1).length.should.equal(2);
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doc1.somedata.should.equal('ok');
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doc1._id.should.equal(id1);
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Object.keys(doc2).length.should.equal(2);
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doc2.newDoc.should.equal('yes');
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doc2._id.should.equal(id2);
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Object.keys(doc3).length.should.equal(2);
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doc3.newDoc.should.equal('yes');
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doc3._id.should.equal(id3);
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return cb();
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});
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}
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// Actually launch the tests
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async.waterfall([
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function (cb) {
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d.insert({ somedata: 'ok' }, function (err, doc1) {
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id1 = doc1._id;
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d.insert({ somedata: 'again', plus: 'additional data' }, function (err, doc2) {
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id2 = doc2._id;
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d.insert({ somedata: 'again' }, function (err, doc3) {
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id3 = doc3._id;
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return cb(err);
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});
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});
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});
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}
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, function (cb) { // Test with query that doesn't match anything
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d.update({ somedata: 'again' }, { newDoc: 'yes' }, { multi: true }, function (err, n) {
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assert.isNull(err);
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n.should.equal(2);
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return cb();
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});
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}
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, async.apply(testPostUpdateState)
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, function (cb) {
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d.loadDatabase(function (err) { cb(err); });
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}
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, async.apply(testPostUpdateState)
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], done);
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});
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it("Can update only one document matching the query", function (done) {
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var id1, id2, id3;
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// Test DB state after update and reload
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function testPostUpdateState (cb) {
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d.find({}, function (err, docs) {
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var doc1 = _.find(docs, function (d) { return d._id === id1; })
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, doc2 = _.find(docs, function (d) { return d._id === id2; })
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, doc3 = _.find(docs, function (d) { return d._id === id3; })
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;
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docs.length.should.equal(3);
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Object.keys(doc1).length.should.equal(2);
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doc1.somedata.should.equal('ok');
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doc1._id.should.equal(id1);
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Object.keys(doc2).length.should.equal(2);
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doc2.newDoc.should.equal('yes');
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doc2._id.should.equal(id2);
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// Third object was not updated
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Object.keys(doc3).length.should.equal(2);
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doc3.somedata.should.equal('again');
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doc3._id.should.equal(id3);
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return cb();
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});
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}
|
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|
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// Actually launch the test
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async.waterfall([
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function (cb) {
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d.insert({ somedata: 'ok' }, function (err, doc1) {
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id1 = doc1._id;
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d.insert({ somedata: 'again', plus: 'additional data' }, function (err, doc2) {
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id2 = doc2._id;
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d.insert({ somedata: 'again' }, function (err, doc3) {
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id3 = doc3._id;
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return cb(err);
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});
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});
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});
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}
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, function (cb) { // Test with query that doesn't match anything
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d.update({ somedata: 'again' }, { newDoc: 'yes' }, { multi: false }, function (err, n) {
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assert.isNull(err);
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n.should.equal(1);
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return cb();
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});
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}
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, async.apply(testPostUpdateState)
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, function (cb) {
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d.loadDatabase(function (err) { return cb(err); });
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}
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, async.apply(testPostUpdateState) // The persisted state has been updated
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], done);
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});
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it('Can perform upserts if needed', function (done) {
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d.update({ impossible: 'db is empty anyway' }, { newDoc: true }, {}, function (err, nr, upsert) {
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assert.isNull(err);
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nr.should.equal(0);
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assert.isUndefined(upsert);
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|
|
d.find({}, function (err, docs) {
|
|
docs.length.should.equal(0); // Default option for upsert is false
|
|
|
|
d.update({ impossible: 'db is empty anyway' }, { newDoc: true }, { upsert: true }, function (err, nr, upsert) {
|
|
assert.isNull(err);
|
|
nr.should.equal(1);
|
|
upsert.should.equal(true);
|
|
|
|
d.find({}, function (err, docs) {
|
|
docs.length.should.equal(1); // Default option for upsert is false
|
|
docs[0].newDoc.should.equal(true);
|
|
|
|
done();
|
|
});
|
|
});
|
|
});
|
|
});
|
|
});
|
|
|
|
it('Cannot perform update if the update query is not either registered-modifiers-only or copy-only, or contain badly formatted fields', function (done) {
|
|
d.insert({ something: 'yup' }, function () {
|
|
d.update({}, { boom: { $badfield: 5 } }, { multi: false }, function (err) {
|
|
assert.isDefined(err);
|
|
|
|
d.update({}, { boom: { "bad.field": 5 } }, { multi: false }, function (err) {
|
|
assert.isDefined(err);
|
|
|
|
d.update({}, { $inc: { test: 5 }, mixed: 'rrr' }, { multi: false }, function (err) {
|
|
assert.isDefined(err);
|
|
|
|
d.update({}, { $inexistent: { test: 5 } }, { multi: false }, function (err) {
|
|
assert.isDefined(err);
|
|
|
|
done();
|
|
});
|
|
});
|
|
});
|
|
});
|
|
});
|
|
});
|
|
|
|
it('Can update documents using multiple modifiers', function (done) {
|
|
var id;
|
|
|
|
d.insert({ something: 'yup', other: 40 }, function (err, newDoc) {
|
|
id = newDoc._id;
|
|
|
|
d.update({}, { $set: { something: 'changed' }, $inc: { other: 10 } }, { multi: false }, function (err, nr) {
|
|
assert.isNull(err);
|
|
nr.should.equal(1);
|
|
|
|
d.findOne({ _id: id }, function (err, doc) {
|
|
Object.keys(doc).length.should.equal(3);
|
|
doc._id.should.equal(id);
|
|
doc.something.should.equal('changed');
|
|
doc.other.should.equal(50);
|
|
|
|
done();
|
|
});
|
|
});
|
|
});
|
|
});
|
|
|
|
it('Can upsert a document even with modifiers', function (done) {
|
|
d.update({ bloup: 'blap' }, { $set: { hello: 'world' } }, { upsert: true }, function (err, nr, upsert) {
|
|
assert.isNull(err);
|
|
nr.should.equal(1);
|
|
upsert.should.equal(true);
|
|
|
|
d.find({}, function (err, docs) {
|
|
docs.length.should.equal(1);
|
|
Object.keys(docs[0]).length.should.equal(3);
|
|
docs[0].hello.should.equal('world');
|
|
docs[0].bloup.should.equal('blap');
|
|
assert.isDefined(docs[0]._id);
|
|
|
|
done();
|
|
});
|
|
});
|
|
});
|
|
|
|
it('When using modifiers, the only way to update subdocs is with the dot-notation', function (done) {
|
|
d.insert({ bloup: { blip: "blap", other: true } }, function () {
|
|
// Correct methos
|
|
d.update({}, { $set: { "bloup.blip": "hello" } }, {}, function () {
|
|
d.findOne({}, function (err, doc) {
|
|
doc.bloup.blip.should.equal("hello");
|
|
doc.bloup.other.should.equal(true);
|
|
|
|
// Wrong
|
|
d.update({}, { $set: { bloup: { blip: "ola" } } }, {}, function () {
|
|
d.findOne({}, function (err, doc) {
|
|
doc.bloup.blip.should.equal("ola");
|
|
assert.isUndefined(doc.bloup.other); // This information was lost
|
|
|
|
done();
|
|
});
|
|
});
|
|
});
|
|
});
|
|
});
|
|
});
|
|
|
|
it('Returns an error if the query is not well formed', function (done) {
|
|
d.insert({ hello: 'world' }, function () {
|
|
d.update({ $or: { hello: 'world' } }, { a: 1 }, {}, function (err, nr, upsert) {
|
|
assert.isDefined(err);
|
|
assert.isUndefined(nr);
|
|
assert.isUndefined(upsert);
|
|
|
|
done();
|
|
});
|
|
});
|
|
});
|
|
|
|
it('Cant change the _id of a document', function (done) {
|
|
d.insert({ a: 2 }, function (err, newDoc) {
|
|
d.update({ a: 2 }, { _id: 'nope' }, {}, function (err) {
|
|
assert.isDefined(err);
|
|
|
|
d.find({}, function (err, docs) {
|
|
docs.length.should.equal(1);
|
|
Object.keys(docs[0]).length.should.equal(2);
|
|
docs[0].a.should.equal(2);
|
|
docs[0]._id.should.equal(newDoc._id);
|
|
|
|
done();
|
|
});
|
|
});
|
|
});
|
|
});
|
|
|
|
}); // ==== End of 'Update' ==== //
|
|
|
|
|
|
describe('Remove', function () {
|
|
|
|
it('Can remove multiple documents', function (done) {
|
|
var id1, id2, id3;
|
|
|
|
// Test DB status
|
|
function testPostUpdateState (cb) {
|
|
d.find({}, function (err, docs) {
|
|
docs.length.should.equal(1);
|
|
|
|
Object.keys(docs[0]).length.should.equal(2);
|
|
docs[0]._id.should.equal(id1);
|
|
docs[0].somedata.should.equal('ok');
|
|
|
|
return cb();
|
|
});
|
|
}
|
|
|
|
// Actually launch the test
|
|
async.waterfall([
|
|
function (cb) {
|
|
d.insert({ somedata: 'ok' }, function (err, doc1) {
|
|
id1 = doc1._id;
|
|
d.insert({ somedata: 'again', plus: 'additional data' }, function (err, doc2) {
|
|
id2 = doc2._id;
|
|
d.insert({ somedata: 'again' }, function (err, doc3) {
|
|
id3 = doc3._id;
|
|
return cb(err);
|
|
});
|
|
});
|
|
});
|
|
}
|
|
, function (cb) { // Test with query that doesn't match anything
|
|
d.remove({ somedata: 'again' }, { multi: true }, function (err, n) {
|
|
assert.isNull(err);
|
|
n.should.equal(2);
|
|
return cb();
|
|
});
|
|
}
|
|
, async.apply(testPostUpdateState)
|
|
, function (cb) {
|
|
d.loadDatabase(function (err) { return cb(err); });
|
|
}
|
|
, async.apply(testPostUpdateState)
|
|
], done);
|
|
});
|
|
|
|
// This tests concurrency issues
|
|
it('Remove can be called multiple times in parallel and everything that needs to be removed will be', function (done) {
|
|
d.insert({ planet: 'Earth' }, function () {
|
|
d.insert({ planet: 'Mars' }, function () {
|
|
d.insert({ planet: 'Saturn' }, function () {
|
|
d.find({}, function (err, docs) {
|
|
docs.length.should.equal(3);
|
|
|
|
// Remove two docs simultaneously
|
|
var toRemove = ['Mars', 'Saturn'];
|
|
async.each(toRemove, function(planet, cb) {
|
|
d.remove({ planet: planet }, function (err) { return cb(err); });
|
|
}, function (err) {
|
|
d.find({}, function (err, docs) {
|
|
docs.length.should.equal(1);
|
|
|
|
done();
|
|
});
|
|
});
|
|
});
|
|
});
|
|
});
|
|
});
|
|
});
|
|
|
|
it('Returns an error if the query is not well formed', function (done) {
|
|
d.insert({ hello: 'world' }, function () {
|
|
d.remove({ $or: { hello: 'world' } }, {}, function (err, nr, upsert) {
|
|
assert.isDefined(err);
|
|
assert.isUndefined(nr);
|
|
assert.isUndefined(upsert);
|
|
|
|
done();
|
|
});
|
|
});
|
|
});
|
|
|
|
}); // ==== End of 'Remove' ==== //
|
|
|
|
|
|
});
|
|
|