cls.test.js
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'use strict';
/* jshint camelcase: false */
/* jshint -W030 */
var chai = require('chai')
, expect = chai.expect
, Support = require(__dirname + '/support')
, Sequelize = Support.Sequelize
, Promise = Sequelize.Promise
, cls = require('continuation-local-storage')
, current = Support.sequelize;
if (current.dialect.supports.transactions) {
describe(Support.getTestDialectTeaser('Continuation local storage'), function () {
before(function () {
Sequelize.cls = cls.createNamespace('sequelize');
});
after(function () {
delete Sequelize.cls;
});
beforeEach(function () {
return Support.prepareTransactionTest(this.sequelize).bind(this).then(function (sequelize) {
this.sequelize = sequelize;
this.ns = cls.getNamespace('sequelize');
this.User = this.sequelize.define('user', {
name: Sequelize.STRING
});
return this.sequelize.sync({ force: true });
});
});
describe('context', function () {
it('supports several concurrent transactions', function () {
var t1id, t2id, self = this;
return Promise.join(
this.sequelize.transaction(function () {
t1id = self.ns.get('transaction').id;
return Promise.resolve();
}),
this.sequelize.transaction(function () {
t2id = self.ns.get('transaction').id;
return Promise.resolve();
}),
function () {
expect(t1id).to.be.ok;
expect(t2id).to.be.ok;
expect(t1id).not.to.equal(t2id);
}
);
});
it('supports nested promise chains', function () {
var self = this;
return this.sequelize.transaction(function () {
var tid = self.ns.get('transaction').id;
return self.User.findAll().then(function () {
expect(self.ns.get('transaction').id).to.be.ok;
expect(self.ns.get('transaction').id).to.equal(tid);
});
});
});
it('does not leak variables to the outer scope', function () {
// This is a little tricky. We want to check the values in the outer scope, when the transaction has been successfully set up, but before it has been comitted.
// We can't just call another function from inside that transaction, since that would transfer the context to that function - exactly what we are trying to prevent;
var self = this
, transactionSetup = false
, transactionEnded = false;
this.sequelize.transaction(function () {
transactionSetup = true;
return Promise.delay(500).then(function () {
expect(self.ns.get('transaction')).to.be.ok;
transactionEnded = true;
});
});
return new Promise(function (resolve) {
// Wait for the transaction to be setup
var interval = setInterval(function () {
if (transactionSetup) {
clearInterval(interval);
resolve();
}
}, 200);
}).bind(this).then(function () {
expect(transactionEnded).not.to.be.ok;
expect(this.ns.get('transaction')).not.to.be.ok;
// Just to make sure it didn't change between our last check and the assertion
expect(transactionEnded).not.to.be.ok;
});
});
it('does not leak variables to the following promise chain', function () {
return this.sequelize.transaction(function () {
return Promise.resolve();
}).bind(this).then(function () {
expect(this.ns.get('transaction')).not.to.be.ok;
});
});
it('does not leak outside findOrCreate', function () {
var self = this;
return this.User.findOrCreate({
where: {
name: 'Kafka'
}
}).then(function () {
return self.User.findAll();
});
});
});
describe('sequelize.query integration', function () {
it('automagically uses the transaction in all calls', function () {
var self = this;
return this.sequelize.transaction(function () {
return self.User.create({ name: 'bob' }).then(function () {
return Promise.all([
expect(self.User.findAll({ transaction: null })).to.eventually.have.length(0),
expect(self.User.findAll({})).to.eventually.have.length(1)
]);
});
});
});
});
describe('bluebird shims', function () {
beforeEach(function () {
// Make sure we have some data so the each, map, filter, ... actually run and validate asserts
return this.sequelize.Promise.all([this.User.create({ name: 'bob' }), this.User.create({ name: 'joe' })]);
});
it('join', function () {
var self = this;
return this.sequelize.transaction(function () {
var tid = self.ns.get('transaction').id;
return self.sequelize.Promise.join(self.User.findAll(), function () {
expect(self.ns.get('transaction').id).to.be.ok;
expect(self.ns.get('transaction').id).to.equal(tid);
});
});
});
it('then fulfilled', function () {
var self = this;
return this.sequelize.transaction(function () {
var tid = self.ns.get('transaction').id;
return self.User.findAll().then(function () {
expect(self.ns.get('transaction').id).to.be.ok;
expect(self.ns.get('transaction').id).to.equal(tid);
});
});
});
it('then rejected', function () {
var self = this;
return this.sequelize.transaction(function () {
var tid = self.ns.get('transaction').id;
return self.sequelize.Promise.reject('test rejection handler').then(null,function () {
expect(self.ns.get('transaction').id).to.be.ok;
expect(self.ns.get('transaction').id).to.equal(tid);
});
});
});
it('spread', function () {
var self = this;
return this.sequelize.transaction(function () {
var tid = self.ns.get('transaction').id;
return self.User.findAll().spread(function () {
expect(self.ns.get('transaction').id).to.be.ok;
expect(self.ns.get('transaction').id).to.equal(tid);
},function () {
expect(self.ns.get('transaction').id).to.be.ok;
expect(self.ns.get('transaction').id).to.equal(tid);
});
});
});
it('catch', function () {
var self = this;
return this.sequelize.transaction(function () {
var tid = self.ns.get('transaction').id;
return self.sequelize.Promise.try(function () {
throw new Error('To test catch');
}).catch(function () {
expect(self.ns.get('transaction').id).to.be.ok;
expect(self.ns.get('transaction').id).to.equal(tid);
});
});
});
it('error', function () {
var self = this;
return this.sequelize.transaction(function () {
var tid = self.ns.get('transaction').id;
return self.sequelize.Promise.try(function () {
throw new self.sequelize.Promise.OperationalError('To test catch');
}).error(function () {
expect(self.ns.get('transaction').id).to.be.ok;
expect(self.ns.get('transaction').id).to.equal(tid);
});
});
});
it('finally', function () {
var self = this;
return this.sequelize.transaction(function () {
var tid = self.ns.get('transaction').id;
return self.User.findAll().finally( function(){
expect(self.ns.get('transaction').id).to.be.ok;
expect(self.ns.get('transaction').id).to.equal(tid);
});
});
});
it('map', function () {
var self = this;
return this.sequelize.transaction(function () {
var tid = self.ns.get('transaction').id;
return self.User.findAll().map(function () {
expect(self.ns.get('transaction').id).to.be.ok;
expect(self.ns.get('transaction').id).to.equal(tid);
});
});
});
it('static map', function () {
var self = this;
return this.sequelize.transaction(function () {
var tid = self.ns.get('transaction').id;
return self.sequelize.Promise.map(self.User.findAll(), function () {
expect(self.ns.get('transaction').id).to.be.ok;
expect(self.ns.get('transaction').id).to.equal(tid);
});
});
});
it('reduce', function () {
var self = this;
return this.sequelize.transaction(function () {
var tid = self.ns.get('transaction').id;
return self.User.findAll().reduce(function () {
expect(self.ns.get('transaction').id).to.be.ok;
expect(self.ns.get('transaction').id).to.equal(tid);
});
});
});
it('static reduce', function () {
var self = this;
return this.sequelize.transaction(function () {
var tid = self.ns.get('transaction').id;
return self.sequelize.Promise.reduce(self.User.findAll(), function () {
expect(self.ns.get('transaction').id).to.be.ok;
expect(self.ns.get('transaction').id).to.equal(tid);
});
});
});
it('filter', function () {
var self = this;
return this.sequelize.transaction(function () {
var tid = self.ns.get('transaction').id;
return self.User.findAll().filter(function () {
expect(self.ns.get('transaction').id).to.be.ok;
expect(self.ns.get('transaction').id).to.equal(tid);
});
});
});
it('static filter', function () {
var self = this;
return this.sequelize.transaction(function () {
var tid = self.ns.get('transaction').id;
return self.sequelize.Promise.filter(self.User.findAll(), function () {
expect(self.ns.get('transaction').id).to.be.ok;
expect(self.ns.get('transaction').id).to.equal(tid);
});
});
});
it('each', function () {
var self = this;
return this.sequelize.transaction(function () {
var tid = self.ns.get('transaction').id;
return self.User.findAll().each(function () {
expect(self.ns.get('transaction').id).to.be.ok;
expect(self.ns.get('transaction').id).to.equal(tid);
});
});
});
it('static each', function () {
var self = this;
return this.sequelize.transaction(function () {
var tid = self.ns.get('transaction').id;
return self.sequelize.Promise.each(self.User.findAll(), function () {
expect(self.ns.get('transaction').id).to.be.ok;
expect(self.ns.get('transaction').id).to.equal(tid);
});
});
});
it('nodeify', function () {
var self = this;
return this.sequelize.transaction(function () {
var tid = self.ns.get('transaction').id;
return self.User.findAll().nodeify(function () {
expect(self.ns.get('transaction').id).to.be.ok;
expect(self.ns.get('transaction').id).to.equal(tid);
});
});
});
it('tap', function () {
var self = this;
return this.sequelize.transaction(function () {
var tid = self.ns.get('transaction').id;
return self.User.findAll().tap(function () {
expect(self.ns.get('transaction').id).to.be.ok;
expect(self.ns.get('transaction').id).to.equal(tid);
});
});
});
});
});
}