fix

Author: Mini256

tests/conftest.py

@@ -15,8 +15,8 @@ def env():
 @pytest.fixture(scope="session", autouse=True)
 def db(env) -> TiDBClient:
     return TiDBClient.connect(
-        host=os.getenv("TIDB_HOST"),
+        host=os.getenv("TIDB_HOST", "localhost"),
         port=int(os.getenv("TIDB_PORT", "4000")),
-        username=os.getenv("TIDB_USERNAME"),
-        password=os.getenv("TIDB_PASSWORD"),
+        username=os.getenv("TIDB_USERNAME", "root"),
+        password=os.getenv("TIDB_PASSWORD", ""),
     )