GROUP BY clause API code-coverage
diff --git a/.travis.yml b/.travis.yml
index 97ea042..971f62f 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -25,4 +25,5 @@
 branches:
   only:
     - develop
-    - master
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+    - master
+    - db-tests
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diff --git a/tests/codeigniter/database/query_builder/group_test.php b/tests/codeigniter/database/query_builder/group_test.php
new file mode 100644
index 0000000..ddb2d0d
--- /dev/null
+++ b/tests/codeigniter/database/query_builder/group_test.php
@@ -0,0 +1,37 @@
+<?php
+
+class Group_test extends CI_TestCase {
+
+	/**
+	 * @var object Database/Query Builder holder
+	 */
+	protected $db;
+
+	public function set_up()
+	{
+		$this->db = Mock_Database_Schema_Skeleton::init(DB_DRIVER);
+
+		Mock_Database_Schema_Skeleton::create_tables();
+		Mock_Database_Schema_Skeleton::create_data();
+	}
+
+	// ------------------------------------------------------------------------
+
+	/**
+	 * @see ./mocks/schema/skeleton.php
+	 */
+	public function test_group_by()
+	{
+		$jobs = $this->db->select('name')
+							  ->from('job')
+							  ->group_by('name HAVING SUM(id) > 2')
+		                      ->get()
+		                      ->result_array();
+		
+		// Check the result
+		$this->assertEquals(2, count($jobs));
+		$this->assertEquals('Accountant', $jobs[0]['name']);
+		$this->assertEquals('Musician', $jobs[1]['name']);
+	}
+	
+}
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