feat: disallow setting non-existent properties in BigQuery tools and credentials config

This will save the agent builder getting wrong impression if by mistake they set a property that does not exist.

PiperOrigin-RevId: 803208559

tests/unittests/tools/bigquery/test_bigquery_credentials.py

@@ -14,7 +14,7 @@
 
 from unittest import mock
 
-from google.adk.tools.bigquery.bigquery_credentials import BigQueryCredentialsConfig
+from google.adk.tools.bigquery import BigQueryCredentialsConfig
 # Mock the Google OAuth and API dependencies
 import google.auth.credentials
 import google.oauth2.credentials
@@ -171,3 +171,12 @@ class TestBigQueryCredentials:
         ),
     ):
       BigQueryCredentialsConfig()
+
+  def test_invalid_property_raises_error(self):
+    """Test BigQueryCredentialsConfig raises exception when setting invalid property."""
+    with pytest.raises(ValueError):
+      BigQueryCredentialsConfig(
+          client_id="test_client_id",
+          client_secret="test_client_secret",
+          non_existent_field="some value",
+      )

tests/unittests/tools/bigquery/test_bigquery_tool_config.py

@@ -27,8 +27,16 @@ def test_bigquery_tool_config_experimental_warning():
     BigQueryToolConfig()
 
 
+def test_bigquery_tool_config_invalid_property():
+  """Test BigQueryToolConfig raises exception when setting invalid property."""
+  with pytest.raises(
+      ValueError,
+  ):
+    BigQueryToolConfig(non_existent_field="some value")
+
+
 def test_bigquery_tool_config_invalid_application_name():
-  """Test BigQueryToolConfig with invalid application name."""
+  """Test BigQueryToolConfig raises exception with invalid application name."""
   with pytest.raises(
       ValueError,
       match="Application name should not contain spaces.",