DDC-1858 Added coverage to ticket. Functionality already implemented.

tests/Doctrine/Tests/ORM/Query/LanguageRecognitionTest.php

@@ -590,6 +590,14 @@ class LanguageRecognitionTest extends \Doctrine\Tests\OrmTestCase
     {
         $this->assertValidDQL("select COALESCE(NULLIF(u.name, ''), u.username) as Display FROM Doctrine\Tests\Models\CMS\CmsUser u");
     }
+
+    /**
+     * @gorup DDC-1858
+     */
+    public function testHavingSupportIsNullExpression()
+    {
+        $this->assertValidDQL("SELECT u.name FROM Doctrine\Tests\Models\CMS\CmsUser u HAVING u.username IS NULL");
+    }
 }
 
 /** @Entity */

tests/Doctrine/Tests/ORM/Query/SelectSqlGenerationTest.php

@@ -1986,6 +1986,28 @@ class SelectSqlGenerationTest extends \Doctrine\Tests\OrmTestCase
             'SELECT r0_.id AS id0, r1_.id AS id1, r1_.passengerName AS passengerName2 FROM RoutingRoute r0_ INNER JOIN RoutingRouteBooking r1_ ON r0_.id = r1_.route_id ORDER BY r1_.passengerName DESC'
         );
     }
+
+    /**
+     * @group DDC-1858
+     */
+    public function testHavingSupportIsNullExpression()
+    {
+        $this->assertSqlGeneration(
+            'SELECT u.name FROM Doctrine\Tests\Models\CMS\CmsUser u HAVING u.username IS NULL',
+            'SELECT c0_.name AS name0 FROM cms_users c0_ HAVING c0_.username IS NULL'
+        );
+    }
+
+    /**
+     * @group DDC-1858
+     */
+    public function testHavingSupportResultVariableInExpression()
+    {
+        $this->assertSqlGeneration(
+            'SELECT u.name AS foo FROM Doctrine\Tests\Models\CMS\CmsUser u HAVING foo IN (?1)',
+            'SELECT c0_.name AS name0 FROM cms_users c0_ HAVING name0 IN (?)'
+        );
+    }
 }
 
 class MyAbsFunction extends \Doctrine\ORM\Query\AST\Functions\FunctionNode