add ability to test for dialect transaction support

Transaction support is currently very limited in the MSSQL dialect,
this allows us to conditionally skip transaction related tests for
a given dialect. I imagine it's also a nice feature to have when
adding a new dialect, so you don't have to solve all one thousand
errors at the same time

lib/dialects/abstract/index.js

@@ -32,6 +32,7 @@ AbstractDialect.prototype.supports = {
   /* What is the dialect's keyword for INSERT IGNORE */
   /* What is the dialect's keyword for INSERT IGNORE */
   'IGNORE': '',
   'IGNORE': '',
   schemas: false,
   schemas: false,
+  transactions: true,
   constraints: {
   constraints: {
     restrict: true
     restrict: true
   },
   },

test/associations/belongs-to.test.js

@@ -25,26 +25,29 @@ describe(Support.getTestDialectTeaser("BelongsTo"), function() {
   })
   })
 
 
   describe('getAssociation', function() {
   describe('getAssociation', function() {
-    it('supports transactions', function(done) {
-      Support.prepareTransactionTest(this.sequelize, function(sequelize) {
-        var User  = sequelize.define('User', { username: Support.Sequelize.STRING })
-          , Group = sequelize.define('Group', { name: Support.Sequelize.STRING })
 
 
-        Group.belongsTo(User)
-
-        sequelize.sync({ force: true }).success(function() {
-          User.create({ username: 'foo' }).success(function(user) {
-            Group.create({ name: 'bar' }).success(function(group) {
-              sequelize.transaction().then(function(t) {
-                group.setUser(user, { transaction: t }).success(function() {
-                  Group.all().success(function(groups) {
-                    groups[0].getUser().success(function(associatedUser) {
-                      expect(associatedUser).to.be.null
-                      Group.all({ transaction: t }).success(function(groups) {
-                        groups[0].getUser({ transaction: t }).success(function(associatedUser) {
-                          expect(associatedUser).to.be.not.null
-                          t.rollback().success(function() {
-                            done()
+    if (current.dialect.supports.transactions) {
+      it('supports transactions', function(done) {
+        Support.prepareTransactionTest(this.sequelize, function(sequelize) {
+          var User  = sequelize.define('User', { username: Support.Sequelize.STRING })
+            , Group = sequelize.define('Group', { name: Support.Sequelize.STRING })
+
+          Group.belongsTo(User)
+
+          sequelize.sync({ force: true }).success(function() {
+            User.create({ username: 'foo' }).success(function(user) {
+              Group.create({ name: 'bar' }).success(function(group) {
+                sequelize.transaction().then(function(t) {
+                  group.setUser(user, { transaction: t }).success(function() {
+                    Group.all().success(function(groups) {
+                      groups[0].getUser().success(function(associatedUser) {
+                        expect(associatedUser).to.be.null
+                        Group.all({ transaction: t }).success(function(groups) {
+                          groups[0].getUser({ transaction: t }).success(function(associatedUser) {
+                            expect(associatedUser).to.be.not.null
+                            t.rollback().success(function() {
+                              done()
+                            })
                           })
                           })
                         })
                         })
                       })
                       })
@@ -56,7 +59,7 @@ describe(Support.getTestDialectTeaser("BelongsTo"), function() {
           })
           })
         })
         })
       })
       })
-    })
+    }
 
 
     it('does not modify the passed arguments', function () {
     it('does not modify the passed arguments', function () {
       var User = this.sequelize.define('user', {})
       var User = this.sequelize.define('user', {})
@@ -126,22 +129,25 @@ describe(Support.getTestDialectTeaser("BelongsTo"), function() {
   })
   })
 
 
   describe('setAssociation', function() {
   describe('setAssociation', function() {
-    it('supports transactions', function(done) {
-      Support.prepareTransactionTest(this.sequelize, function(sequelize) {
-        var User  = sequelize.define('User', { username: Support.Sequelize.STRING })
-          , Group = sequelize.define('Group', { name: Support.Sequelize.STRING })
 
 
-        Group.belongsTo(User)
-
-        sequelize.sync({ force: true }).success(function() {
-          User.create({ username: 'foo' }).success(function(user) {
-            Group.create({ name: 'bar' }).success(function(group) {
-              sequelize.transaction().then(function(t) {
-                group.setUser(user, { transaction: t }).success(function() {
-                  Group.all().success(function(groups) {
-                    groups[0].getUser().success(function(associatedUser) {
-                      expect(associatedUser).to.be.null
-                      t.rollback().success(function() { done() })
+    if (current.dialect.supports.transactions) {
+      it('supports transactions', function(done) {
+        Support.prepareTransactionTest(this.sequelize, function(sequelize) {
+          var User  = sequelize.define('User', { username: Support.Sequelize.STRING })
+            , Group = sequelize.define('Group', { name: Support.Sequelize.STRING })
+
+          Group.belongsTo(User)
+
+          sequelize.sync({ force: true }).success(function() {
+            User.create({ username: 'foo' }).success(function(user) {
+              Group.create({ name: 'bar' }).success(function(group) {
+                sequelize.transaction().then(function(t) {
+                  group.setUser(user, { transaction: t }).success(function() {
+                    Group.all().success(function(groups) {
+                      groups[0].getUser().success(function(associatedUser) {
+                        expect(associatedUser).to.be.null
+                        t.rollback().success(function() { done() })
+                      })
                     })
                     })
                   })
                   })
                 })
                 })
@@ -150,7 +156,7 @@ describe(Support.getTestDialectTeaser("BelongsTo"), function() {
           })
           })
         })
         })
       })
       })
-    })
+    }
 
 
     it('can set the association with declared primary keys...', function(done) {
     it('can set the association with declared primary keys...', function(done) {
       var User = this.sequelize.define('UserXYZ', { user_id: {type: DataTypes.INTEGER, primaryKey: true }, username: DataTypes.STRING })
       var User = this.sequelize.define('UserXYZ', { user_id: {type: DataTypes.INTEGER, primaryKey: true }, username: DataTypes.STRING })
@@ -277,24 +283,26 @@ describe(Support.getTestDialectTeaser("BelongsTo"), function() {
       })
       })
     })
     })
 
 
-    it('supports transactions', function(done) {
-      Support.prepareTransactionTest(this.sequelize, function(sequelize) {
-        var User  = sequelize.define('User', { username: Support.Sequelize.STRING })
-          , Group = sequelize.define('Group', { name: Support.Sequelize.STRING })
+    if (current.dialect.supports.transactions) {
+      it('supports transactions', function(done) {
+        Support.prepareTransactionTest(this.sequelize, function(sequelize) {
+          var User  = sequelize.define('User', { username: Support.Sequelize.STRING })
+            , Group = sequelize.define('Group', { name: Support.Sequelize.STRING })
 
 
-        Group.belongsTo(User)
+          Group.belongsTo(User)
 
 
-        sequelize.sync({ force: true }).success(function() {
-          Group.create({ name: 'bar' }).success(function(group) {
-            sequelize.transaction().then(function(t) {
-              group.createUser({ username: 'foo' }, { transaction: t }).success(function() {
-                group.getUser().success(function(user) {
-                  expect(user).to.be.null
+          sequelize.sync({ force: true }).success(function() {
+            Group.create({ name: 'bar' }).success(function(group) {
+              sequelize.transaction().then(function(t) {
+                group.createUser({ username: 'foo' }, { transaction: t }).success(function() {
+                  group.getUser().success(function(user) {
+                    expect(user).to.be.null
 
 
-                  group.getUser({ transaction: t }).success(function(user) {
-                    expect(user).not.to.be.null
+                    group.getUser({ transaction: t }).success(function(user) {
+                      expect(user).not.to.be.null
 
 
-                    t.rollback().success(function() { done() })
+                      t.rollback().success(function() { done() })
+                    })
                   })
                   })
                 })
                 })
               })
               })
@@ -302,7 +310,7 @@ describe(Support.getTestDialectTeaser("BelongsTo"), function() {
           })
           })
         })
         })
       })
       })
-    })
+    }
   })
   })
 
 
   describe("foreign key", function () {
   describe("foreign key", function () {

test/associations/has-one.test.js

@@ -23,28 +23,30 @@ describe(Support.getTestDialectTeaser("HasOne"), function() {
   })
   })
 
 
   describe('getAssocation', function() {
   describe('getAssocation', function() {
-    it('supports transactions', function(done) {
-      Support.prepareTransactionTest(this.sequelize, function(sequelize) {
-        var User  = sequelize.define('User', { username: Support.Sequelize.STRING })
-          , Group = sequelize.define('Group', { name: Support.Sequelize.STRING })
-
-        Group.hasOne(User)
-
-        sequelize.sync({ force: true }).success(function() {
-          User.create({ username: 'foo' }).success(function(fakeUser) {
-            User.create({ username: 'foo' }).success(function(user) {
-              Group.create({ name: 'bar' }).success(function(group) {
-                sequelize.transaction().then(function(t) {
-                  group.setUser(user, { transaction: t }).success(function() {
-                    Group.all().success(function(groups) {
-                      groups[0].getUser().success(function(associatedUser) {
-                        expect(associatedUser).to.be.null
-                        Group.all({ transaction: t }).success(function(groups) {
-                          groups[0].getUser({ transaction: t }).success(function(associatedUser) {
-                            expect(associatedUser).not.to.be.null
-                            expect(associatedUser.id).to.equal(user.id)
-                            expect(associatedUser.id).not.to.equal(fakeUser.id)
-                            t.rollback().success(function() { done() })
+    if (current.dialect.supports.transactions) {
+      it('supports transactions', function(done) {
+        Support.prepareTransactionTest(this.sequelize, function(sequelize) {
+          var User  = sequelize.define('User', { username: Support.Sequelize.STRING })
+            , Group = sequelize.define('Group', { name: Support.Sequelize.STRING })
+
+          Group.hasOne(User)
+
+          sequelize.sync({ force: true }).success(function() {
+            User.create({ username: 'foo' }).success(function(fakeUser) {
+              User.create({ username: 'foo' }).success(function(user) {
+                Group.create({ name: 'bar' }).success(function(group) {
+                  sequelize.transaction().then(function(t) {
+                    group.setUser(user, { transaction: t }).success(function() {
+                      Group.all().success(function(groups) {
+                        groups[0].getUser().success(function(associatedUser) {
+                          expect(associatedUser).to.be.null
+                          Group.all({ transaction: t }).success(function(groups) {
+                            groups[0].getUser({ transaction: t }).success(function(associatedUser) {
+                              expect(associatedUser).not.to.be.null
+                              expect(associatedUser.id).to.equal(user.id)
+                              expect(associatedUser.id).not.to.equal(fakeUser.id)
+                              t.rollback().success(function() { done() })
+                            })
                           })
                           })
                         })
                         })
                       })
                       })
@@ -56,7 +58,7 @@ describe(Support.getTestDialectTeaser("HasOne"), function() {
           })
           })
         })
         })
       })
       })
-    })
+    }
 
 
     it('does not modify the passed arguments', function () {
     it('does not modify the passed arguments', function () {
       var User = this.sequelize.define('user', {})
       var User = this.sequelize.define('user', {})
@@ -98,36 +100,38 @@ describe(Support.getTestDialectTeaser("HasOne"), function() {
   })
   })
 
 
   describe('setAssociation', function() {
   describe('setAssociation', function() {
-    it('supports transactions', function(done) {
-      Support.prepareTransactionTest(this.sequelize, function(sequelize) {
-        var User  = sequelize.define('User', { username: Support.Sequelize.STRING })
-          , Group = sequelize.define('Group', { name: Support.Sequelize.STRING })
+    if (current.dialect.supports.transactions) {
+      it('supports transactions', function(done) {
+        Support.prepareTransactionTest(this.sequelize, function(sequelize) {
+          var User  = sequelize.define('User', { username: Support.Sequelize.STRING })
+            , Group = sequelize.define('Group', { name: Support.Sequelize.STRING })
 
 
-        Group.hasOne(User)
+          Group.hasOne(User)
 
 
-        sequelize.sync({ force: true }).success(function() {
-          User.create({ username: 'foo' }).success(function(user) {
-            Group.create({ name: 'bar' }).success(function(group) {
-              sequelize.transaction().then(function(t) {
-                group
-                  .setUser(user, { transaction: t })
-                  .success(function() {
-                    Group.all().success(function(groups) {
-                      groups[0].getUser().success(function(associatedUser) {
-                        expect(associatedUser).to.be.null
-                        t.rollback().success(function() { done() })
+          sequelize.sync({ force: true }).success(function() {
+            User.create({ username: 'foo' }).success(function(user) {
+              Group.create({ name: 'bar' }).success(function(group) {
+                sequelize.transaction().then(function(t) {
+                  group
+                    .setUser(user, { transaction: t })
+                    .success(function() {
+                      Group.all().success(function(groups) {
+                        groups[0].getUser().success(function(associatedUser) {
+                          expect(associatedUser).to.be.null
+                          t.rollback().success(function() { done() })
+                        })
                       })
                       })
                     })
                     })
-                  })
-                  .on('sql', function(sql, uuid) {
-                    expect(uuid).to.not.equal('default')
-                  })
+                    .on('sql', function(sql, uuid) {
+                      expect(uuid).to.not.equal('default')
+                    })
+                })
               })
               })
             })
             })
           })
           })
         })
         })
       })
       })
-    })
+    }
 
 
     it('can set an association with predefined primary keys', function(done) {
     it('can set an association with predefined primary keys', function(done) {
       var User = this.sequelize.define('UserXYZZ', { userCoolIdTag: { type: Sequelize.INTEGER, primaryKey: true }, username: Sequelize.STRING })
       var User = this.sequelize.define('UserXYZZ', { userCoolIdTag: { type: Sequelize.INTEGER, primaryKey: true }, username: Sequelize.STRING })
@@ -227,24 +231,26 @@ describe(Support.getTestDialectTeaser("HasOne"), function() {
       })
       })
     })
     })
 
 
-    it('supports transactions', function(done) {
-      Support.prepareTransactionTest(this.sequelize, function(sequelize) {
-        var User  = sequelize.define('User', { username: Sequelize.STRING })
-          , Group = sequelize.define('Group', { name: Sequelize.STRING })
-
-        User.hasOne(Group)
-
-        sequelize.sync({ force: true }).success(function() {
-          User.create({ username: 'bob' }).success(function(user) {
-            sequelize.transaction().then(function(t) {
-              user.createGroup({ name: 'testgroup' }, { transaction: t }).success(function() {
-                User.all().success(function (users) {
-                  users[0].getGroup().success(function (group) {
-                    expect(group).to.be.null;
-                    User.all({ transaction: t }).success(function (users) {
-                      users[0].getGroup({ transaction: t }).success(function (group) {
-                        expect(group).to.be.not.null;
-                        t.rollback().success(function() { done() })
+    if (current.dialect.supports.transactions) {
+      it('supports transactions', function(done) {
+        Support.prepareTransactionTest(this.sequelize, function(sequelize) {
+          var User  = sequelize.define('User', { username: Sequelize.STRING })
+            , Group = sequelize.define('Group', { name: Sequelize.STRING })
+
+          User.hasOne(Group)
+
+          sequelize.sync({ force: true }).success(function() {
+            User.create({ username: 'bob' }).success(function(user) {
+              sequelize.transaction().then(function(t) {
+                user.createGroup({ name: 'testgroup' }, { transaction: t }).success(function() {
+                  User.all().success(function (users) {
+                    users[0].getGroup().success(function (group) {
+                      expect(group).to.be.null;
+                      User.all({ transaction: t }).success(function (users) {
+                        users[0].getGroup({ transaction: t }).success(function (group) {
+                          expect(group).to.be.not.null;
+                          t.rollback().success(function() { done() })
+                        })
                       })
                       })
                     })
                     })
                   })
                   })
@@ -254,7 +260,8 @@ describe(Support.getTestDialectTeaser("HasOne"), function() {
           })
           })
         })
         })
       })
       })
-    })
+    }
+
   })
   })
 
 
   describe('foreign key', function () {
   describe('foreign key', function () {

test/dao-factory/create.test.js

@@ -10,6 +10,8 @@ var chai      = require('chai')
   , datetime  = require('chai-datetime')
   , datetime  = require('chai-datetime')
   , _         = require('lodash')
   , _         = require('lodash')
   , assert    = require('assert')
   , assert    = require('assert')
+  , current   = Support.sequelize;
+
 
 
 chai.use(datetime)
 chai.use(datetime)
 chai.config.includeStack = true
 chai.config.includeStack = true
@@ -41,35 +43,37 @@ describe(Support.getTestDialectTeaser("DAOFactory"), function () {
   });
   });
 
 
   describe('findOrCreate', function () {
   describe('findOrCreate', function () {
-    it("supports transactions", function(done) {
-      var self = this;
-      this.sequelize.transaction().then(function(t) {
-        self.User.findOrCreate({ where: { username: 'Username' }, defaults: { data: 'some data' }}, { transaction: t }).then(function() {
-          self.User.count().success(function(count) {
-            expect(count).to.equal(0)
-            t.commit().success(function() {
-              self.User.count().success(function(count) {
-                expect(count).to.equal(1)
-                done()
+    if (current.dialect.supports.transactions) {
+      it("supports transactions", function(done) {
+        var self = this;
+        this.sequelize.transaction().then(function(t) {
+          self.User.findOrCreate({ where: { username: 'Username' }, defaults: { data: 'some data' }}, { transaction: t }).then(function() {
+            self.User.count().success(function(count) {
+              expect(count).to.equal(0)
+              t.commit().success(function() {
+                self.User.count().success(function(count) {
+                  expect(count).to.equal(1)
+                  done()
+                })
               })
               })
             })
             })
           })
           })
         })
         })
       })
       })
-    })
 
 
-    it("supports more than one models per transaction", function(done) {
-      var self = this;
-      this.sequelize.transaction().then(function(t) {
-        self.User.findOrCreate({ where: { username: 'Username'}, defaults: { data: 'some data' }}, { transaction: t }).then(function() {
-          self.Account.findOrCreate({ where: { accountName: 'accountName'}}, { transaction: t}).then(function(){
-            t.commit().success(function() {
-              done()
+      it("supports more than one models per transaction", function(done) {
+        var self = this;
+        this.sequelize.transaction().then(function(t) {
+          self.User.findOrCreate({ where: { username: 'Username'}, defaults: { data: 'some data' }}, { transaction: t }).then(function() {
+            self.Account.findOrCreate({ where: { accountName: 'accountName'}}, { transaction: t}).then(function(){
+              t.commit().success(function() {
+                done()
+              })
             })
             })
           })
           })
         })
         })
       })
       })
-    })
+    }
 
 
     it("returns instance if already existent. Single find field.", function(done) {
     it("returns instance if already existent. Single find field.", function(done) {
       var self = this,
       var self = this,
@@ -137,55 +141,59 @@ describe(Support.getTestDialectTeaser("DAOFactory"), function () {
       })
       })
     })
     })
 
 
-    it("should release transaction when meeting errors", function(){
-        var self = this
+    if (current.dialect.supports.transactions) {
+      it("should release transaction when meeting errors", function(){
+          var self = this
 
 
-        var test = function(times) {
-            if (times > 10) {
-                return true;
-            }
-            return self.Student.findOrCreate({
-              where: {
-                no: 1
+          var test = function(times) {
+              if (times > 10) {
+                  return true;
               }
               }
-            })
-            .timeout(1000)
-            .catch(Promise.TimeoutError,function(e){
-                throw new Error(e)
-            })
-            .catch(Sequelize.ValidationError,function(err){
-                return test(times+1);
-            })
-        }
+              return self.Student.findOrCreate({
+                where: {
+                  no: 1
+                }
+              })
+              .timeout(1000)
+              .catch(Promise.TimeoutError,function(e){
+                  throw new Error(e)
+              })
+              .catch(Sequelize.ValidationError,function(err){
+                  return test(times+1);
+              })
+          }
 
 
-        return test(0);
-    })
+          return test(0);
+      })
+    }
 
 
     describe('several concurrent calls', function () {
     describe('several concurrent calls', function () {
-      it('works with a transaction', function () {
-        return this.sequelize.transaction().bind(this).then(function (transaction) {
-          return Promise.join(
-            this.User.findOrCreate({ where: { uniqueName: 'winner' }}, { transaction: transaction }),
-            this.User.findOrCreate({ where: { uniqueName: 'winner' }}, { transaction: transaction }),
-            function (first, second) {
-               var firstInstance = first[0]
-              , firstCreated = first[1]
-              , secondInstance = second[0]
-              , secondCreated = second[1];
-
-              // Depending on execution order and MAGIC either the first OR the second call should return true
-              expect(firstCreated ? !secondCreated : secondCreated).to.be.ok // XOR
-
-              expect(firstInstance).to.be.ok;
-              expect(secondInstance).to.be.ok;
-
-              expect(firstInstance.id).to.equal(secondInstance.id);
-
-              return transaction.commit();
-            }
-          );
+      if (current.dialect.supports.transactions) {
+        it('works with a transaction', function () {
+          return this.sequelize.transaction().bind(this).then(function (transaction) {
+            return Promise.join(
+              this.User.findOrCreate({ where: { uniqueName: 'winner' }}, { transaction: transaction }),
+              this.User.findOrCreate({ where: { uniqueName: 'winner' }}, { transaction: transaction }),
+              function (first, second) {
+                 var firstInstance = first[0]
+                , firstCreated = first[1]
+                , secondInstance = second[0]
+                , secondCreated = second[1];
+
+                // Depending on execution order and MAGIC either the first OR the second call should return true
+                expect(firstCreated ? !secondCreated : secondCreated).to.be.ok // XOR
+
+                expect(firstInstance).to.be.ok;
+                expect(secondInstance).to.be.ok;
+
+                expect(firstInstance.id).to.equal(secondInstance.id);
+
+                return transaction.commit();
+              }
+            );
+          });
         });
         });
-      });
+      }
 
 
       // Creating two concurrent transactions and selecting / inserting from the same table throws sqlite off
       // Creating two concurrent transactions and selecting / inserting from the same table throws sqlite off
       (dialect !== 'sqlite' ? it : it.skip)('works without a transaction', function () {
       (dialect !== 'sqlite' ? it : it.skip)('works without a transaction', function () {
@@ -287,22 +295,24 @@ describe(Support.getTestDialectTeaser("DAOFactory"), function () {
       });
       });
     });
     });
 
 
-    it('supports transactions', function(done) {
-      var self = this;
-      this.sequelize.transaction().then(function(t) {
-        self.User.create({ username: 'user' }, { transaction: t }).success(function() {
-          self.User.count().success(function(count) {
-            expect(count).to.equal(0)
-            t.commit().success(function() {
-              self.User.count().success(function(count) {
-                expect(count).to.equal(1)
-                done()
+    if (current.dialect.supports.transactions) {
+      it('supports transactions', function(done) {
+        var self = this;
+        this.sequelize.transaction().then(function(t) {
+          self.User.create({ username: 'user' }, { transaction: t }).success(function() {
+            self.User.count().success(function(count) {
+              expect(count).to.equal(0)
+              t.commit().success(function() {
+                self.User.count().success(function(count) {
+                  expect(count).to.equal(1)
+                  done()
+                })
               })
               })
             })
             })
           })
           })
         })
         })
       })
       })
-    })
+    }
 
 
     it('is possible to use casting when creating an instance', function (done) {
     it('is possible to use casting when creating an instance', function (done) {
       var self = this
       var self = this
@@ -960,22 +970,24 @@ describe(Support.getTestDialectTeaser("DAOFactory"), function () {
   })
   })
 
 
   describe('bulkCreate', function() {
   describe('bulkCreate', function() {
-    it("supports transactions", function(done) {
-      var self = this;
-      this.sequelize.transaction().then(function(t) {
-        self.User
-          .bulkCreate([{ username: 'foo' }, { username: 'bar' }], { transaction: t })
-          .success(function() {
-            self.User.count().success(function(count1) {
-              self.User.count({ transaction: t }).success(function(count2) {
-                expect(count1).to.equal(0)
-                expect(count2).to.equal(2)
-                t.rollback().success(function(){ done() })
+    if (current.dialect.supports.transactions) {
+      it("supports transactions", function(done) {
+        var self = this;
+        this.sequelize.transaction().then(function(t) {
+          self.User
+            .bulkCreate([{ username: 'foo' }, { username: 'bar' }], { transaction: t })
+            .success(function() {
+              self.User.count().success(function(count1) {
+                self.User.count({ transaction: t }).success(function(count2) {
+                  expect(count1).to.equal(0)
+                  expect(count2).to.equal(2)
+                  t.rollback().success(function(){ done() })
+                })
               })
               })
             })
             })
-          })
+        })
       })
       })
-    })
+    }
 
 
     it('properly handles disparate field lists', function(done) {
     it('properly handles disparate field lists', function(done) {
       var self = this
       var self = this

test/dao-factory/find.test.js

@@ -11,6 +11,8 @@ var chai      = require('chai')
   , promised  =  require("chai-as-promised")
   , promised  =  require("chai-as-promised")
   , _         = require('lodash')
   , _         = require('lodash')
   , async     = require('async')
   , async     = require('async')
+  , current   = Support.sequelize;
+
 
 
 chai.use(promised);
 chai.use(promised);
 chai.use(datetime)
 chai.use(datetime)
@@ -33,24 +35,26 @@ describe(Support.getTestDialectTeaser("DAOFactory"), function () {
   })
   })
 
 
   describe('find', function() {
   describe('find', function() {
-    it('supports transactions', function(done) {
-      Support.prepareTransactionTest(this.sequelize, function(sequelize) {
-        var User = sequelize.define('User', { username: Sequelize.STRING })
-
-        User.sync({ force: true }).success(function() {
-          sequelize.transaction().then(function(t) {
-            User.create({ username: 'foo' }, { transaction: t }).success(function() {
-              User.find({
-                where: { username: 'foo' }
-              }).success(function(user1) {
+    if (current.dialect.supports.transactions) {
+      it('supports transactions', function(done) {
+        Support.prepareTransactionTest(this.sequelize, function(sequelize) {
+          var User = sequelize.define('User', { username: Sequelize.STRING })
+
+          User.sync({ force: true }).success(function() {
+            sequelize.transaction().then(function(t) {
+              User.create({ username: 'foo' }, { transaction: t }).success(function() {
                 User.find({
                 User.find({
-                  where: { username: 'foo' },
-                }, { transaction: t }).success(function(user2) {
-                  expect(user1).to.be.null
-                  expect(user2).to.not.be.null
-
-                  t.rollback().success(function() {
-                    done()
+                  where: { username: 'foo' }
+                }).success(function(user1) {
+                  User.find({
+                    where: { username: 'foo' },
+                  }, { transaction: t }).success(function(user2) {
+                    expect(user1).to.be.null
+                    expect(user2).to.not.be.null
+
+                    t.rollback().success(function() {
+                      done()
+                    })
                   })
                   })
                 })
                 })
               })
               })
@@ -58,7 +62,7 @@ describe(Support.getTestDialectTeaser("DAOFactory"), function () {
           })
           })
         })
         })
       })
       })
-    })
+    }
 
 
     describe('general / basic function', function() {
     describe('general / basic function', function() {
       beforeEach(function(done) {
       beforeEach(function(done) {

test/dao-factory/findAll.test.js

@@ -11,6 +11,8 @@ var chai      = require('chai')
   , _         = require('lodash')
   , _         = require('lodash')
   , moment    = require('moment')
   , moment    = require('moment')
   , async     = require('async')
   , async     = require('async')
+  , current   = Support.sequelize;
+
 
 
 chai.use(datetime)
 chai.use(datetime)
 chai.config.includeStack = true
 chai.config.includeStack = true
@@ -33,22 +35,24 @@ describe(Support.getTestDialectTeaser("DAOFactory"), function () {
   })
   })
 
 
   describe('findAll', function() {
   describe('findAll', function() {
-    it('supports transactions', function(done) {
-      Support.prepareTransactionTest(this.sequelize, function(sequelize) {
-        var User = sequelize.define('User', { username: Sequelize.STRING })
-
-        User.sync({ force: true }).success(function() {
-          sequelize.transaction().then(function(t) {
-            User.create({ username: 'foo' }, { transaction: t }).success(function() {
-              User.findAll({ username: 'foo' }).success(function(users1) {
-                User.findAll({ transaction: t }).success(function(users2) {
-                  User.findAll({ username: 'foo' }, { transaction: t }).success(function(users3) {
-                    expect(users1.length).to.equal(0)
-                    expect(users2.length).to.equal(1)
-                    expect(users3.length).to.equal(1)
-
-                    t.rollback().success(function() {
-                      done()
+    if (current.dialect.supports.transactions) {
+      it('supports transactions', function(done) {
+        Support.prepareTransactionTest(this.sequelize, function(sequelize) {
+          var User = sequelize.define('User', { username: Sequelize.STRING })
+
+          User.sync({ force: true }).success(function() {
+            sequelize.transaction().then(function(t) {
+              User.create({ username: 'foo' }, { transaction: t }).success(function() {
+                User.findAll({ username: 'foo' }).success(function(users1) {
+                  User.findAll({ transaction: t }).success(function(users2) {
+                    User.findAll({ username: 'foo' }, { transaction: t }).success(function(users3) {
+                      expect(users1.length).to.equal(0)
+                      expect(users2.length).to.equal(1)
+                      expect(users3.length).to.equal(1)
+
+                      t.rollback().success(function() {
+                        done()
+                      })
                     })
                     })
                   })
                   })
                 })
                 })
@@ -57,7 +61,7 @@ describe(Support.getTestDialectTeaser("DAOFactory"), function () {
           })
           })
         })
         })
       })
       })
-    })
+    }
 
 
     describe('special where conditions/smartWhere object', function() {
     describe('special where conditions/smartWhere object', function() {
       beforeEach(function(done) {
       beforeEach(function(done) {
@@ -1364,26 +1368,28 @@ describe(Support.getTestDialectTeaser("DAOFactory"), function () {
       })
       })
     })
     })
 
 
-    it('supports transactions', function(done) {
-      Support.prepareTransactionTest(this.sequelize, function(sequelize) {
-        var User = sequelize.define('User', { username: Sequelize.STRING })
+    if (current.dialect.supports.transactions) {
+      it('supports transactions', function(done) {
+        Support.prepareTransactionTest(this.sequelize, function(sequelize) {
+          var User = sequelize.define('User', { username: Sequelize.STRING })
 
 
-        User.sync({ force: true }).success(function() {
-          sequelize.transaction().then(function(t) {
-            User.create({ username: 'foo' }, { transaction: t }).success(function() {
-
-              User.findAndCountAll().success(function(info1) {
-                User.findAndCountAll({ transaction: t }).success(function(info2) {
-                  expect(info1.count).to.equal(0)
-                  expect(info2.count).to.equal(1)
-                  t.rollback().success(function(){ done() })
+          User.sync({ force: true }).success(function() {
+            sequelize.transaction().then(function(t) {
+              User.create({ username: 'foo' }, { transaction: t }).success(function() {
+
+                User.findAndCountAll().success(function(info1) {
+                  User.findAndCountAll({ transaction: t }).success(function(info2) {
+                    expect(info1.count).to.equal(0)
+                    expect(info2.count).to.equal(1)
+                    t.rollback().success(function(){ done() })
+                  })
                 })
                 })
               })
               })
             })
             })
           })
           })
         })
         })
       })
       })
-    })
+    }
 
 
     it("handles where clause [only]", function(done) {
     it("handles where clause [only]", function(done) {
       this.User.findAndCountAll({where: "id != " + this.users[0].id}).success(function(info) {
       this.User.findAndCountAll({where: "id != " + this.users[0].id}).success(function(info) {
@@ -1503,25 +1509,27 @@ describe(Support.getTestDialectTeaser("DAOFactory"), function () {
       })
       })
     })
     })
 
 
-    it('supports transactions', function(done) {
-      Support.prepareTransactionTest(this.sequelize, function(sequelize) {
-        var User = sequelize.define('User', { username: Sequelize.STRING })
+    if (current.dialect.supports.transactions) {
+      it('supports transactions', function(done) {
+        Support.prepareTransactionTest(this.sequelize, function(sequelize) {
+          var User = sequelize.define('User', { username: Sequelize.STRING })
 
 
-        User.sync({ force: true }).success(function() {
-          sequelize.transaction().then(function(t) {
-            User.create({ username: 'foo' }, { transaction: t }).success(function() {
-              User.all().success(function(users1) {
-                User.all({ transaction: t }).success(function(users2) {
-                  expect(users1.length).to.equal(0)
-                  expect(users2.length).to.equal(1)
-                  t.rollback().success(function(){ done() })
+          User.sync({ force: true }).success(function() {
+            sequelize.transaction().then(function(t) {
+              User.create({ username: 'foo' }, { transaction: t }).success(function() {
+                User.all().success(function(users1) {
+                  User.all({ transaction: t }).success(function(users2) {
+                    expect(users1.length).to.equal(0)
+                    expect(users2.length).to.equal(1)
+                    t.rollback().success(function(){ done() })
+                  })
                 })
                 })
               })
               })
             })
             })
           })
           })
         })
         })
       })
       })
-    })
+    }
 
 
     it("should return all users", function(done) {
     it("should return all users", function(done) {
       this.User.all().on('success', function(users) {
       this.User.all().on('success', function(users) {

test/sequelize.transaction.test.js

@@ -3,6 +3,10 @@ var chai        = require('chai')
   , Support     = require(__dirname + '/support')
   , Support     = require(__dirname + '/support')
   , Promise     = require(__dirname + '/../lib/promise')
   , Promise     = require(__dirname + '/../lib/promise')
   , Transaction = require(__dirname + '/../lib/transaction')
   , Transaction = require(__dirname + '/../lib/transaction')
+  , current   = Support.sequelize;
+
+
+if (current.dialect.supports.transactions) {
 
 
 describe(Support.getTestDialectTeaser("Sequelize#transaction"), function () {
 describe(Support.getTestDialectTeaser("Sequelize#transaction"), function () {
   this.timeout(4000);
   this.timeout(4000);
@@ -182,3 +186,5 @@ describe(Support.getTestDialectTeaser("Sequelize#transaction"), function () {
     })
     })
   })
   })
 })
 })
+
+}

test/timezone.test.js

@@ -4,7 +4,6 @@ var chai        = require('chai')
   , expect      = chai.expect
   , expect      = chai.expect
   , Support     = require(__dirname + '/support')
   , Support     = require(__dirname + '/support')
   , dialect     = Support.getTestDialect()
   , dialect     = Support.getTestDialect()
-  , Transaction = require(__dirname + '/../lib/transaction')
   , Sequelize   = require(__dirname + '/../index')
   , Sequelize   = require(__dirname + '/../index')
   , Promise     = Sequelize.Promise
   , Promise     = Sequelize.Promise
   , sinon       = require('sinon');
   , sinon       = require('sinon');

test/transaction.test.js

@@ -7,6 +7,8 @@ var chai        = require('chai')
   , sinon       = require('sinon')
   , sinon       = require('sinon')
   , current     = Support.sequelize;
   , current     = Support.sequelize;
 
 
+if (current.dialect.supports.transactions) {
+
 describe(Support.getTestDialectTeaser("Transaction"), function () {
 describe(Support.getTestDialectTeaser("Transaction"), function () {
   this.timeout(4000);
   this.timeout(4000);
   describe('constructor', function() {
   describe('constructor', function() {
@@ -173,3 +175,5 @@ describe(Support.getTestDialectTeaser("Transaction"), function () {
     });
     });
   }
   }
 });
 });
+
+}