sequelize.transaction.test.js
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'use strict';
var chai = require('chai')
, expect = chai.expect
, Support = require(__dirname + '/support')
, Promise = require(__dirname + '/../lib/promise')
, Transaction = require(__dirname + '/../lib/transaction')
, current = Support.sequelize;
if (current.dialect.supports.transactions) {
describe(Support.getTestDialectTeaser('Sequelize#transaction'), function() {
this.timeout(4000);
describe('success', function() {
it('gets triggered once a transaction has been successfully committed', function(done) {
this
.sequelize
.transaction().then(function(t) { t.commit(); })
.success(function() { done(); });
});
it('gets triggered once a transaction has been successfully rollbacked', function(done) {
this
.sequelize
.transaction().then(function(t) { t.rollback(); })
.success(function() { done(); });
});
if (Support.getTestDialect() !== 'sqlite') {
it('works for long running transactions', function(done) {
Support.prepareTransactionTest(this.sequelize, function(sequelize) {
var User = sequelize.define('User', {
name: Support.Sequelize.STRING
}, { timestamps: false });
return sequelize.sync({ force: true }).success(function() {
return sequelize.transaction();
}).then(function(t) {
expect(t).to.be.ok;
var query = 'select sleep(2);';
switch (Support.getTestDialect()) {
case 'postgres':
query = 'select pg_sleep(2);';
break;
case 'sqlite':
query = 'select sqlite3_sleep(2000);';
break;
default:
break;
}
return sequelize.query(query, null, {
raw: true,
plain: true,
transaction: t
}).then(function() {
var dao = User.build({ name: 'foo' });
// this.QueryGenerator.insertQuery(tableName, values, dao.daoFactory.rawAttributes)
return query = sequelize
.getQueryInterface()
.QueryGenerator
.insertQuery(User.tableName, dao.values, User.rawAttributes);
}).then(function() {
return Promise.delay(1000);
}).then(function() {
return sequelize.query(query, null, {
raw: true,
plain: true,
transaction: t
});
}).then(function() {
return t.commit();
});
}).then(function() {
return User.all().success(function(users) {
expect(users.length).to.equal(1);
expect(users[0].name).to.equal('foo');
done();
});
}).catch (done);
});
});
}
});
describe('error', function() {
if (Support.getTestDialect() === 'sqlite') {
// not sure if we can test this in sqlite ...
// how could we enforce an authentication error in sqlite?
} else {
it('gets triggered once an error occurs', function(done) {
var sequelize = Support.createSequelizeInstance();
// lets overwrite the host to get an error
sequelize.config.username = 'foobarbaz';
sequelize
.transaction().then(function() {})
.catch (function(err) {
expect(err).to.not.be.undefined;
done();
});
});
}
});
describe('complex long running example', function() {
it('works with promise syntax', function(done) {
Support.prepareTransactionTest(this.sequelize, function(sequelize) {
var Test = sequelize.define('Test', {
id: { type: Support.Sequelize.INTEGER, primaryKey: true, autoIncrement: true},
name: { type: Support.Sequelize.STRING }
});
sequelize
.sync({ force: true })
.then(function() {
sequelize.transaction().then(function(transaction) {
expect(transaction).to.be.instanceOf(Transaction);
Test
.create({ name: 'Peter' }, { transaction: transaction })
.then(function() {
setTimeout(function() {
transaction
.commit()
.then(function() { return Test.count(); })
.then(function(count) {
expect(count).to.equal(1);
done();
});
}, 1000);
});
});
});
});
});
});
describe('concurrency', function() {
describe('having tables with uniqueness constraints', function() {
beforeEach(function(done) {
var self = this;
Support.prepareTransactionTest(this.sequelize, function(sequelize) {
self.sequelize = sequelize;
self.Model = sequelize.define('Model', {
name: { type: Support.Sequelize.STRING, unique: true }
}, {
timestamps: false
});
self.Model
.sync({ force: true })
.success(function() { done(); });
});
});
it('triggers the error event for the second transactions', function(done) {
var self = this;
this.sequelize.transaction().then(function(t1) {
self.sequelize.transaction().then(function(t2) {
self
.Model
.create({ name: 'omnom' }, { transaction: t1 })
.success(function(m1) {
self
.Model
.create({ name: 'omnom' }, { transaction: t2 })
.error(function(err) {
t2.rollback().success(function() {
expect(err).to.be.defined;
done();
});
});
setTimeout(function() { t1.commit(); }, 100);
});
});
});
});
});
});
});
}