diff --git a/tests/test_framework/phpbb_ui_test_case.php b/tests/test_framework/phpbb_ui_test_case.php
index c8ca2a9003..e3f636679c 100644
--- a/tests/test_framework/phpbb_ui_test_case.php
+++ b/tests/test_framework/phpbb_ui_test_case.php
@@ -32,7 +32,9 @@ class phpbb_ui_test_case extends phpbb_test_case
 	static protected $root_url;
 	static protected $already_installed = false;
 	static protected $install_success = false;
-	static protected $db;
+	protected $cache = null;
+	protected $db = null;
+	protected $extension_manager = null;
 
 	/**
 	 * Session ID for current test's session (each test makes its own)
@@ -93,6 +95,14 @@ class phpbb_ui_test_case extends phpbb_test_case
 		}
 	}
 
+	/**
+	 * @return array List of extensions that should be set up
+	 */
+	static protected function setup_extensions()
+	{
+		return array();
+	}
+
 	public function setUp()
 	{
 		if (!self::$install_success)
@@ -104,16 +114,35 @@ class phpbb_ui_test_case extends phpbb_test_case
 		// that were added in other tests are gone
 		$this->lang = array();
 		$this->add_lang('common');
+
+		$db = $this->get_db();
+
+		foreach (static::setup_extensions() as $extension)
+		{
+			$this->purge_cache();
+
+			$sql = 'SELECT ext_active
+				FROM ' . EXT_TABLE . "
+				WHERE ext_name = '" . $db->sql_escape($extension). "'";
+			$result = $db->sql_query($sql);
+			$status = (bool) $db->sql_fetchfield('ext_active');
+			$db->sql_freeresult($result);
+
+			if (!$status)
+			{
+				$this->install_ext($extension);
+			}
+		}
 	}
 
 	protected function tearDown()
 	{
 		parent::tearDown();
 
-		if (self::$db instanceof \phpbb\db\driver\driver_interface)
+		if ($this->db instanceof \phpbb\db\driver\driver_interface)
 		{
 			// Close the database connections again this test
-			self::$db->sql_close();
+			$this->db->sql_close();
 		}
 	}
 
@@ -139,14 +168,12 @@ class phpbb_ui_test_case extends phpbb_test_case
 		$element->click();
 	}
 
-	static public function install_board()
+	static protected function install_board()
 	{
 		global $phpbb_root_path, $phpEx, $db;
 
 		self::recreate_database(self::$config);
 
-		$db = self::get_db();
-
 		$config_file = $phpbb_root_path . "config.$phpEx";
 		$config_file_dev = $phpbb_root_path . "config_dev.$phpEx";
 		$config_file_test = $phpbb_root_path . "config_test.$phpEx";
@@ -270,19 +297,112 @@ class phpbb_ui_test_case extends phpbb_test_case
 		}
 	}
 
-	static protected function get_db()
+	public function install_ext($extension)
+	{
+		$this->login();
+		$this->admin_login();
+
+		$ext_path = str_replace('/', '%2F', $extension);
+
+		$this->visit('adm/index.php?i=acp_extensions&mode=main&action=enable_pre&ext_name=' . $ext_path . '&sid=' . $this->sid);
+		$this->assertNotEmpty(count(self::find_element('cssSelector', '.submit-buttons')));
+
+		self::find_element('cssSelector', "input[value='Enable']")->submit();
+		$this->add_lang('acp/extensions');
+
+		try
+		{
+			$meta_refresh = self::find_element('cssSelector', 'meta[http-equiv="refresh"]');
+
+			// Wait for extension to be fully enabled
+			while (sizeof($meta_refresh))
+			{
+				preg_match('#url=.+/(adm+.+)#', $meta_refresh->getAttribute('content'), $match);
+				self::$webDriver->execute(array('method' => 'post', 'url' => $match[1]));
+				$meta_refresh = self::find_element('cssSelector', 'meta[http-equiv="refresh"]');
+			}
+		}
+		catch (\Facebook\WebDriver\Exception\NoSuchElementException $e)
+		{
+			// Probably no refresh triggered
+		}
+
+		$this->assertContainsLang('EXTENSION_ENABLE_SUCCESS', self::find_element('cssSelector', 'div.successbox')->getText());
+
+		$this->logout();
+	}
+
+	protected function get_cache_driver()
+	{
+		if (!$this->cache)
+		{
+			$this->cache = new \phpbb\cache\driver\file;
+		}
+
+		return $this->cache;
+	}
+
+	protected function purge_cache()
+	{
+		$cache = $this->get_cache_driver();
+
+		$cache->purge();
+		$cache->unload();
+		$cache->load();
+	}
+
+	protected function get_extension_manager()
 	{
 		global $phpbb_root_path, $phpEx;
+
+		$config = new \phpbb\config\config(array());
+		$db = $this->get_db();
+		$db_tools = new \phpbb\db\tools($db);
+
+		$container = new phpbb_mock_container_builder();
+		$migrator = new \phpbb\db\migrator(
+			$container,
+			$config,
+			$db,
+			$db_tools,
+			self::$config['table_prefix'] . 'migrations',
+			$phpbb_root_path,
+			$phpEx,
+			self::$config['table_prefix'],
+			array(),
+			new \phpbb\db\migration\helper()
+		);
+		$container->set('migrator', $migrator);
+		$container->set('dispatcher', new phpbb_mock_event_dispatcher());
+		$user = new \phpbb\user('\phpbb\datetime');
+
+		$extension_manager = new \phpbb\extension\manager(
+			$container,
+			$db,
+			$config,
+			new phpbb\filesystem(),
+			$user,
+			self::$config['table_prefix'] . 'ext',
+			dirname(__FILE__) . '/',
+			$phpEx,
+			$this->get_cache_driver()
+		);
+
+		return $extension_manager;
+	}
+
+	protected function get_db()
+	{
 		// so we don't reopen an open connection
-		if (!(self::$db instanceof \phpbb\db\driver\driver_interface))
+		if (!($this->db instanceof \phpbb\db\driver\driver_interface))
 		{
 			$dbms = self::$config['dbms'];
 			/** @var \phpbb\db\driver\driver_interface $db */
 			$db = new $dbms();
 			$db->sql_connect(self::$config['dbhost'], self::$config['dbuser'], self::$config['dbpasswd'], self::$config['dbname'], self::$config['dbport']);
-			self::$db = $db;
+			$this->db = $db;
 		}
-		return self::$db;
+		return $this->db;
 	}
 
 	protected function logout()
@@ -430,6 +550,8 @@ class phpbb_ui_test_case extends phpbb_test_case
 	{
 		$this->add_lang('ucp');
 
+		self::$webDriver->manage()->deleteAllCookies();
+
 		$this->visit('ucp.php');
 		$this->assertContains($this->lang('LOGIN_EXPLAIN_UCP'), self::$webDriver->getPageSource());