fixed a few more failing cases

  - missed a case for addLimitAndOffset for subqueries with a single model
  - formatResults should return undefined if there is no data
  - there are a few possible error messages in an invalid connection scenario

lib/dialects/mssql/query-generator.js

@@ -1236,10 +1236,16 @@ module.exports = (function() {
       if (options.order) {
         if (Array.isArray(options.order)) {
           options.order.forEach(function(t) {
+            if (!Array.isArray(t)) {
+              if (isSubQuery && !(t instanceof Model) && !(t.model instanceof Model)) {
+                subQueryOrder.push(this.quote(t, model));
+              }
+            } else {
               if (isSubQuery && !(t[0] instanceof Model) && !(t[0].model instanceof Model)) {
                 subQueryOrder.push(this.quote(t, model));
               }
               mainQueryOrder.push(this.quote(t, model));
+            }
           }.bind(this));
         } else {
           mainQueryOrder.push(options.order);

lib/dialects/mssql/query.js

@@ -113,11 +113,11 @@ module.exports = (function() {
    */
   Query.prototype.formatResults = function(data) {
     var result = this.callee;
-
-    if (data) {
     if (this.isInsertQuery(data)) {
       this.handleInsertQuery(data);
-      } else if (this.isShowTableQuery()) {
+    }
+
+    if (this.isShowTableQuery()) {
       result = this.handleShowTableQuery(data);
     } else if (this.isShowOrDescribeQuery()) {
       result = data;
@@ -145,9 +145,6 @@ module.exports = (function() {
     } else if (this.isBulkDeleteQuery()){
       result = data[0].AFFECTEDROWS;
     }
-    } else if (!result) {
-      result = data;
-    }
 
     return result;
   };

test/sequelize.test.js

@@ -113,23 +113,26 @@ describe(Support.getTestDialectTeaser("Sequelize"), function () {
             .authenticate()
             .complete(function(err, result) {
               if (dialect === 'mariadb') {
-                expect(err.message).to.match(/Access denied for user/)
+                expect(err.message).to.match(/Access denied for user/);
               } else if (dialect === 'postgres') {
                 expect(
                   err.message.match(/connect ECONNREFUSED/) ||
                   err.message.match(/invalid port number/)
-                ).to.be.ok
+                ).to.be.ok;
               } else if (dialect === 'mssql'){
-                expect(err.message.match(/ConnectionError: Login failed for user/)).to.be.ok
+                expect(
+                  err.message.match(/ConnectionError: Login failed for user/) ||
+                  err.message.match(/RangeError: Port should be > 0 and < 65536/)
+                ).to.be.ok;
               } else {
                 expect(err.message).to.match(/connect ECONNREFUSED/)
               }
 
-              done()
+              done();
 
-            })
-        })
-      })
+            });
+        });
+      });
 
       describe('with invalid credentials', function() {
         beforeEach(function() {