Update test_metabase_api.py

Author: vvaezian

tests/test_metabase_api.py

@@ -281,7 +281,7 @@ def test_copy_collection(self):
 
 
   def test_search(self):
-    res = mb.search('test_db')
+    res = mb.search('test_db2')
     self.assertEqual(len(res), 1)
     self.assertEqual(res[0]['model'], 'database')