Added unit tests for query generator

test/mysql/query-generator.test.js

@@ -235,6 +235,30 @@ if (Support.dialectIsMySQL()) {
           arguments: ['myTable', {group: "name", order: "id DESC"}],
           arguments: ['myTable', {group: "name", order: "id DESC"}],
           expectation: "SELECT * FROM `myTable` GROUP BY name ORDER BY id DESC;",
           expectation: "SELECT * FROM `myTable` GROUP BY name ORDER BY id DESC;",
           context: QueryGenerator
           context: QueryGenerator
+        },{
+          title: 'HAVING clause works with string replacements',
+          arguments: ['myTable', function (sequelize) {
+            return {
+              attributes: ['*', [sequelize.fn('YEAR', sequelize.col('createdAt')), 'creationYear']],
+              group: ['creationYear', 'title'],
+              having: ['creationYear > ?', 2002]
+            }
+          }],
+          expectation: "SELECT *, YEAR(`createdAt`) as `creationYear` FROM `myTable` GROUP BY `creationYear`, `title` HAVING creationYear > 2002;",
+          context: QueryGenerator,
+          needsSequelize: true
+        }, {
+          title: 'HAVING clause works with where-like hash',
+          arguments: ['myTable', function (sequelize) {
+            return {
+              attributes: ['*', [sequelize.fn('YEAR', sequelize.col('createdAt')), 'creationYear']],
+              group: ['creationYear', 'title'],
+              having: { creationYear: { gt: 2002 } }
+            }
+          }],
+          expectation: "SELECT *, YEAR(`createdAt`) as `creationYear` FROM `myTable` GROUP BY `creationYear`, `title` HAVING `creationYear` > 2002;",
+          context: QueryGenerator,
+          needsSequelize: true
         }, {
         }, {
           arguments: ['myTable', {limit: 10}],
           arguments: ['myTable', {limit: 10}],
           expectation: "SELECT * FROM `myTable` LIMIT 10;",
           expectation: "SELECT * FROM `myTable` LIMIT 10;",