Revert test credentials

tests/config/database.php

@@ -8,19 +8,19 @@ return [
             'name'       => 'mongodb',
             'driver'     => 'mongodb',
             'host'       => '127.0.0.1',
-            'database'   => 'mongo',
+            'database'   => 'unittest',
         ],
 
         'mysql' => [
             'driver'    => 'mysql',
             'host'      => '127.0.0.1',
-            'database'  => 'mongo',
-            'username'  => 'homestead',
-            'password'  => 'secret',
+            'database'  => 'unittest',
+            'username'  => 'travis',
+            'password'  => '',
             'charset'   => 'utf8',
             'collation' => 'utf8_unicode_ci',
             'prefix'    => '',
         ],
     ],
 
-];
+];
\ No newline at end of file