Test fixes (#6038)

* Fix this reference in instance test

* Fix instance validation test

test/integration/instance.test.js

@@ -223,7 +223,7 @@ describe(Support.getTestDialectTeaser('Instance'), function() {
     it('should still work right with other concurrent increments', function() {
     it('should still work right with other concurrent increments', function() {
       var self = this;
       var self = this;
       return this.User.findById(1).then(function(user1) {
       return this.User.findById(1).then(function(user1) {
-        return this.sequelize.Promise.all([
+        return self.sequelize.Promise.all([
           user1.increment(['aNumber'], { by: 2 }),
           user1.increment(['aNumber'], { by: 2 }),
           user1.increment(['aNumber'], { by: 2 }),
           user1.increment(['aNumber'], { by: 2 }),
           user1.increment(['aNumber'], { by: 2 })
           user1.increment(['aNumber'], { by: 2 })
@@ -349,7 +349,7 @@ describe(Support.getTestDialectTeaser('Instance'), function() {
     it('should still work right with other concurrent increments', function() {
     it('should still work right with other concurrent increments', function() {
       var self = this;
       var self = this;
       return this.User.findById(1).then(function(user1) {
       return this.User.findById(1).then(function(user1) {
-        return this.sequelize.Promise.all([
+        return self.sequelize.Promise.all([
           user1.decrement(['aNumber'], { by: 2 }),
           user1.decrement(['aNumber'], { by: 2 }),
           user1.decrement(['aNumber'], { by: 2 }),
           user1.decrement(['aNumber'], { by: 2 }),
           user1.decrement(['aNumber'], { by: 2 })
           user1.decrement(['aNumber'], { by: 2 })

test/integration/instance.validations.test.js

@@ -342,7 +342,7 @@ describe(Support.getTestDialectTeaser('InstanceValidator'), function() {
         return this.Project.create({}).catch(function(err) {
         return this.Project.create({}).catch(function(err) {
           expect(err).to.be.an.instanceOf(Error);
           expect(err).to.be.an.instanceOf(Error);
           delete err.stack; // longStackTraces
           delete err.stack; // longStackTraces
-          expect(Object.keys(err)).to.have.length(3);
+          expect(err.errors).to.have.length(3);
         });
         });
       });
       });
     });
     });