Updated unit test.

Author: lu-ohai

ads/common/auth.py

@@ -66,6 +66,7 @@ def __post_init__(self):
         )
         self.oci_config = self.oci_config or {}
         self.oci_signer = self.oci_signer
+        self.oci_signer_callable = self.oci_signer_callable
         self.oci_signer_kwargs = self.oci_signer_kwargs or {}
         self.oci_client_kwargs = self.oci_client_kwargs or {}