diff --git a/tests/Doctrine/Tests/ORM/Query/SelectSqlGenerationTest.php b/tests/Doctrine/Tests/ORM/Query/SelectSqlGenerationTest.php
index b3543d329..8d18ccce9 100644
--- a/tests/Doctrine/Tests/ORM/Query/SelectSqlGenerationTest.php
+++ b/tests/Doctrine/Tests/ORM/Query/SelectSqlGenerationTest.php
@@ -1866,6 +1866,27 @@ class SelectSqlGenerationTest extends \Doctrine\Tests\OrmTestCase
             'SELECT SUM(CASE WHEN c0_.salary <= ? THEN c0_.salary - ? WHEN c0_.salary >= ? THEN ? - c0_.salary ELSE c0_.salary + ? END) AS sclr0 FROM company_employees c0_ INNER JOIN company_persons c1_ ON c0_.id = c1_.id'
         );
     }
+
+    /**
+    * @group DDC-2268
+    */
+    public function testCaseThenFunction()
+    {
+        $this->assertSqlGeneration(
+            'SELECT CASE WHEN LENGTH(u.name) <> 0 THEN CONCAT(u.id, u.name) ELSE u.id END AS name  FROM Doctrine\Tests\Models\CMS\CmsUser u',
+            'SELECT CASE WHEN LENGTH(c0_.name) <> 0 THEN c0_.id || c0_.name ELSE c0_.id END AS sclr0 FROM cms_users c0_'
+        );
+
+        $this->assertSqlGeneration(
+            'SELECT CASE WHEN LENGTH(u.name) <> LENGTH(TRIM(u.name)) THEN TRIM(u.name) ELSE u.name END AS name  FROM Doctrine\Tests\Models\CMS\CmsUser u',
+            'SELECT CASE WHEN LENGTH(c0_.name) <> LENGTH(TRIM(c0_.name)) THEN TRIM(c0_.name) ELSE c0_.name END AS sclr0 FROM cms_users c0_'
+        );
+
+        $this->assertSqlGeneration(
+            'SELECT CASE WHEN LENGTH(u.name) > :value THEN SUBSTRING(u.name, 0, :value) ELSE TRIM(u.name) END AS name  FROM Doctrine\Tests\Models\CMS\CmsUser u',
+            'SELECT CASE WHEN LENGTH(c0_.name) > ? THEN SUBSTRING(c0_.name FROM 0 FOR ?) ELSE TRIM(c0_.name) END AS sclr0 FROM cms_users c0_'
+        );
+    }
 }
 
 class MyAbsFunction extends \Doctrine\ORM\Query\AST\Functions\FunctionNode