diff --git a/tests/mocks/database/schema/skeleton.php b/tests/mocks/database/schema/skeleton.php
index b6d4b78..5fe5b0f 100644
--- a/tests/mocks/database/schema/skeleton.php
+++ b/tests/mocks/database/schema/skeleton.php
@@ -24,6 +24,13 @@
 	{
 		if (empty(self::$db) && empty(self::$forge))
 		{
+			// E_DEPRECATED notices thrown by mysql_connect(), mysql_pconnect()
+			// on PHP 5.5+ cause the tests to fail
+			if ($driver === 'mysql' && version_compare(PHP_VERSION, '5.5', '>='))
+			{
+				error_reporting(E_ALL & ~E_DEPRECATED);
+			}
+
 			$config = Mock_Database_DB::config($driver);
 			$connection = new Mock_Database_DB($config);
 			$db = Mock_Database_DB::DB($connection->set_dsn($driver), TRUE);