diff --git a/tests/functional/acp_groups_test.php b/tests/functional/acp_groups_test.php
new file mode 100644
index 0000000000..152f05c7a7
--- /dev/null
+++ b/tests/functional/acp_groups_test.php
@@ -0,0 +1,45 @@
+<?php
+/**
+*
+* @package testing
+* @copyright (c) 2013 phpBB Group
+* @license http://opensource.org/licenses/gpl-2.0.php GNU General Public License v2
+*
+*/
+
+/**
+* @group functional
+*/
+class phpbb_functional_acp_groups_test extends phpbb_functional_test_case
+{
+	public function groups_manage_test_data()
+	{
+		return array(
+			array('#AA0000', 'WRONG_DATA_COLOUR'),
+			array('AA0000', 'GROUP_UPDATED'),
+			array('AA0000v', 'WRONG_DATA_COLOUR'),
+			array('vAA0000', 'WRONG_DATA_COLOUR'),
+			array('AAG000','WRONG_DATA_COLOUR'),
+			array('a00', 'GROUP_UPDATED'),
+			array('ag0', 'WRONG_DATA_COLOUR'),
+			array('#aa0', 'WRONG_DATA_COLOUR'),
+		);
+	}
+
+	/**
+	* @dataProvider groups_manage_test_data
+	*/
+	public function test_groups_manage($input, $expected)
+	{
+		$this->login();
+		$this->admin_login();
+		$this->add_lang(array('ucp', 'acp/groups'));
+
+		$crawler = $this->request('GET', 'adm/index.php?i=groups&mode=manage&action=edit&g=5&sid=' . $this->sid);
+		$this->assert_response_success();
+		$form = $crawler->selectButton($this->lang('SUBMIT'))->form();
+		$form['group_colour']->setValue($input);
+		$crawler = $this->client->submit($form);
+		$this->assertContains($this->lang($expected), $crawler->text());
+	}
+}