success/error event tests for transactions

test/sequelize.transaction.test.js

+var chai        = require('chai')
+  , expect      = chai.expect
+  , Support     = require(__dirname + '/support')
+  , Transaction = require(__dirname + '/../lib/transaction')
+
+describe(Support.getTestDialectTeaser("Sequelize#transaction"), function () {
+  describe('success', function() {
+    it("gets triggered once a transaction has been successfully committed", function(done) {
+      this
+        .sequelize
+        .transaction(function(t) { t.commit() })
+        .success(function() { done() })
+    })
+
+    it("gets triggered once a transaction has been successfully rollbacked", function(done) {
+      this
+        .sequelize
+        .transaction(function(t) { t.rollback() })
+        .success(function() { done() })
+    })
+  })
+
+  describe('error', function() {
+    it("gets triggered once an error occurs", function(done) {
+      var sequelize = Support.createSequelizeInstance({ dialect: Support.getTestDialect() })
+
+      // lets overwrite the host to get an error
+      sequelize.config.username = 'foobarbaz'
+
+      sequelize
+        .transaction(function() {})
+        .error(function(err) {
+          expect(err).to.not.be.undefined
+          done()
+        })
+    })
+  })
+
+  describe('callback', function() {
+    it("receives the transaction if only one argument is passed", function(done) {
+      this.sequelize.transaction(function(t) {
+        expect(t).to.be.instanceOf(Transaction)
+        t.commit()
+      }).done(done)
+    })
+
+    it("receives an error and the transaction if two arguments are passed", function(done) {
+      this.sequelize.transaction(function(err, t) {
+        expect(err).to.not.be.instanceOf(Transaction)
+        expect(t).to.be.instanceOf(Transaction)
+        t.commit()
+      }).done(done)
+    })
+  })
+})