sequelize.transaction.test.js
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'use strict';
/* jshint -W030 */
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() {
describe('then', function() {
it('gets triggered once a transaction has been successfully committed', function() {
var called = false;
return this
.sequelize
.transaction().then(function(t) {
return t.commit().then(function () {
called = 1;
});
})
.then(function() {
expect(called).to.be.ok;
});
});
it('gets triggered once a transaction has been successfully rolled back', function() {
var called = false;
return this
.sequelize
.transaction().then(function(t) {
return t.rollback().then(function () {
called = 1;
});
})
.then(function() {
expect(called).to.be.ok;
});
});
if (Support.getTestDialect() !== 'sqlite') {
it('works for long running transactions', function() {
this.timeout(10000);
return Support.prepareTransactionTest(this.sequelize).bind(this).then(function(sequelize) {
this.sequelize = sequelize;
this.User = sequelize.define('User', {
name: Support.Sequelize.STRING
}, { timestamps: false });
return sequelize.sync({ force: true });
}).then(function() {
return this.sequelize.transaction();
}).then(function(t) {
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 this.sequelize.query(query, { transaction: t }).bind(this).then(function() {
return this.User.create({ name: 'foo' });
}).then(function() {
return this.sequelize.query(query, { transaction: t });
}).then(function() {
return t.commit();
});
}).then(function() {
return this.User.all();
}).then(function(users) {
expect(users.length).to.equal(1);
expect(users[0].name).to.equal('foo');
});
});
}
});
describe('complex long running example', function() {
it('works with promise syntax', function() {
return Support.prepareTransactionTest(this.sequelize).then(function(sequelize) {
var Test = sequelize.define('Test', {
id: { type: Support.Sequelize.INTEGER, primaryKey: true, autoIncrement: true},
name: { type: Support.Sequelize.STRING }
});
return sequelize.sync({ force: true }).then(function() {
return sequelize.transaction().then(function(transaction) {
expect(transaction).to.be.instanceOf(Transaction);
return Test
.create({ name: 'Peter' }, { transaction: transaction })
.then(function() {
return Promise.delay(1000).then(function () {
return transaction
.commit()
.then(function() { return Test.count(); })
.then(function(count) {
expect(count).to.equal(1);
});
});
});
});
});
});
});
});
describe('concurrency', function() {
describe('having tables with uniqueness constraints', function() {
beforeEach(function() {
var self = this;
return Support.prepareTransactionTest(this.sequelize).then(function(sequelize) {
self.sequelize = sequelize;
self.Model = sequelize.define('Model', {
name: { type: Support.Sequelize.STRING, unique: true }
}, {
timestamps: false
});
return self.Model.sync({ force: true });
});
});
it('triggers the error event for the second transactions', function() {
var self = this;
return this.sequelize.transaction().then(function(t1) {
return self.sequelize.transaction().then(function(t2) {
return self.Model.create({ name: 'omnom' }, { transaction: t1 }).then(function() {
return Promise.all([
self.Model.create({ name: 'omnom' }, { transaction: t2 }).catch(function(err) {
expect(err).to.be.ok;
return t2.rollback();
}),
Promise.delay(100).then(function() {
return t1.commit();
})
]);
});
});
});
});
});
});
});
}