Add test suite for examples/assets and confirm v19 API usage.

This commit introduces a test suite for the Python scripts located in the
`examples/assets` directory. Unit tests have been created for each script,
mocking the GoogleAdsClient and associated services to verify the core
functionality and API interactions.

The tests cover:
- `add_call.py`
- `add_hotel_callout.py`
- `add_lead_form_asset.py`
- `add_prices.py`
- `add_sitelinks.py`
- `upload_image_asset.py`

Key aspects verified:
- Correct creation and configuration of various asset types.
- Proper linking of assets to accounts or campaigns.
- Appropriate parameters being passed to API service calls.

The scripts themselves instantiate the GoogleAdsClient using `version="v19"`.
While directly testing the `if __name__ == "__main__":` block for the
`load_from_storage` call proved challenging,
the tests for the main functional logic of each script operate under the
assumption of a v19 client, and the client instantiation in the scripts
confirms this version usage.

`__init__.py` files have been added to relevant directories to ensure
proper test discovery.

Author: google-labs-jules[bot]

examples/assets/__init__.py

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+# This file is intentionally left blank.
+# It is used to ensure that the 'tests' directory is tracked by Git.

examples/assets/tests/.gitkeep

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+import unittest
+from unittest.mock import MagicMock, patch, call
+import sys
+import argparse
+import importlib
+import runpy # For running the module/script
+import os # For path joining
+
+sys.path.insert(0, os.path.abspath("."))
+
+try:
+    from google.ads.googleads.client import GoogleAdsClient as RealGoogleAdsClient
+except ImportError:
+    RealGoogleAdsClient = MagicMock()
+
+from examples.assets import add_call
+
+
+class TestAddCall(unittest.TestCase):
+    @patch("examples.assets.add_call.GoogleAdsClient")
+    def test_add_call_asset(self, mock_google_ads_client_constructor):
+        mock_client_instance = mock_google_ads_client_constructor.return_value
+        mock_asset_service = MagicMock()
+        mock_google_ads_service = MagicMock()
+        def get_service_side_effect(service_name):
+            if service_name == "AssetService": return mock_asset_service
+            elif service_name == "GoogleAdsService": return mock_google_ads_service
+            return MagicMock()
+        mock_client_instance.get_service.side_effect = get_service_side_effect
+        mock_asset_operation = MagicMock(spec=["create"])
+        mock_call_asset = mock_asset_operation.create.call_asset
+        mock_ad_schedule_targets_list = MagicMock(spec=["append"])
+        mock_call_asset.ad_schedule_targets = mock_ad_schedule_targets_list
+        mock_ad_schedule_info = MagicMock()
+        def get_type_side_effect(type_name):
+            if type_name == "AssetOperation": return mock_asset_operation
+            elif type_name == "AdScheduleInfo": return mock_ad_schedule_info
+            return MagicMock()
+        mock_client_instance.get_type.side_effect = get_type_side_effect
+        mock_client_instance.enums.DayOfWeekEnum.MONDAY = "MONDAY_ENUM"
+        mock_client_instance.enums.MinuteOfHourEnum.ZERO = "ZERO_ENUM"
+        mock_client_instance.enums.CallConversionReportingStateEnum.USE_RESOURCE_LEVEL_CALL_CONVERSION_ACTION = "REPORTING_STATE_ENUM"
+        customer_id = "1234567890"; phone_number = "(800) 555-0100"; phone_country = "US"; conversion_action_id = "987654321"
+        mock_asset_service.mutate_assets.return_value.results = [MagicMock(resource_name="asset_resource_name")]
+        mock_google_ads_service.conversion_action_path.return_value = "conversion_action_path"
+        returned_resource_name = add_call.add_call_asset(
+            mock_client_instance, customer_id, phone_number, phone_country, conversion_action_id
+        )
+        self.assertEqual(returned_resource_name, "asset_resource_name")
+        mock_client_instance.get_service.assert_any_call("AssetService")
+        mock_client_instance.get_service.assert_any_call("GoogleAdsService")
+        mock_client_instance.get_type.assert_any_call("AssetOperation")
+        mock_client_instance.get_type.assert_any_call("AdScheduleInfo")
+        self.assertEqual(mock_call_asset.country_code, phone_country)
+        self.assertEqual(mock_call_asset.phone_number, phone_number)
+        self.assertEqual(mock_call_asset.call_conversion_action, "conversion_action_path")
+        self.assertEqual(mock_call_asset.call_conversion_reporting_state, "REPORTING_STATE_ENUM")
+        mock_ad_schedule_targets_list.append.assert_called_once_with(mock_ad_schedule_info)
+        self.assertEqual(mock_ad_schedule_info.day_of_week, "MONDAY_ENUM")
+        self.assertEqual(mock_ad_schedule_info.start_hour, 9)
+        self.assertEqual(mock_ad_schedule_info.end_hour, 17)
+        self.assertEqual(mock_ad_schedule_info.start_minute, "ZERO_ENUM")
+        self.assertEqual(mock_ad_schedule_info.end_minute, "ZERO_ENUM")
+        mock_asset_service.mutate_assets.assert_called_once_with(customer_id=customer_id, operations=[mock_asset_operation])
+        self.assertIs(mock_asset_operation.create.call_asset, mock_call_asset)
+
+    @patch("examples.assets.add_call.GoogleAdsClient")
+    def test_link_asset_to_account(self, mock_google_ads_client_constructor):
+        mock_client_instance = mock_google_ads_client_constructor.return_value
+        mock_customer_asset_service = MagicMock()
+        mock_client_instance.get_service.return_value = mock_customer_asset_service
+        mock_customer_asset_operation = MagicMock(spec=["create"])
+        mock_client_instance.get_type.return_value = mock_customer_asset_operation
+        mock_customer_asset = mock_customer_asset_operation.create
+        mock_client_instance.enums.AssetFieldTypeEnum.CALL = "CALL_ENUM"
+        customer_id = "1234567890"; asset_resource_name = "asset_resource_name"
+        mock_customer_asset_service.mutate_customer_assets.return_value.results = [MagicMock(resource_name="customer_asset_resource_name")]
+        add_call.link_asset_to_account(mock_client_instance, customer_id, asset_resource_name)
+        mock_client_instance.get_service.assert_called_once_with("CustomerAssetService")
+        mock_client_instance.get_type.assert_called_once_with("CustomerAssetOperation")
+        self.assertEqual(mock_customer_asset.asset, asset_resource_name)
+        self.assertEqual(mock_customer_asset.field_type, "CALL_ENUM")
+        mock_customer_asset_service.mutate_customer_assets.assert_called_once_with(customer_id=customer_id, operations=[mock_customer_asset_operation])
+
+    # This test directly invokes the 'main' function from add_call.py,
+    # ensuring its internal logic (calls to add_call_asset and link_asset_to_account) is tested.
+    # It relies on those functions being correctly patched if they interact with external services.
+    @patch("examples.assets.add_call.link_asset_to_account") # Mock the function that links asset to account
+    @patch("examples.assets.add_call.add_call_asset")    # Mock the function that creates the asset
+    def test_main_function_logic(self, mock_add_call_asset, mock_link_asset_to_account):
+        mock_client_instance = MagicMock()  # Mock the GoogleAdsClient instance
+        mock_add_call_asset.return_value = "test_asset_resource_name" # Mock return value for asset creation
+
+        # Define test parameters
+        customer_id = "cust123"
+        phone_number = "123-456-7890"
+        phone_country = "CA"
+        conversion_action_id = "conv123"
+
+        # Call the main function from the add_call module
+        add_call.main(
+            mock_client_instance,
+            customer_id,
+            phone_number,
+            phone_country,
+            conversion_action_id
+        )
+
+        # Assert that add_call_asset was called correctly
+        mock_add_call_asset.assert_called_once_with(
+            mock_client_instance,
+            customer_id,
+            phone_number,
+            phone_country,
+            conversion_action_id
+        )
+        # Assert that link_asset_to_account was called correctly with the mocked asset name
+        mock_link_asset_to_account.assert_called_once_with(
+            mock_client_instance,
+            customer_id,
+            "test_asset_resource_name"
+        )
+
+# TestMainExecution class is removed as testing the __main__ block via runpy proved intractable.
+# The test_main_function_logic above provides good coverage for the main function's orchestration.
+
+if __name__ == "__main__":
+    unittest.main()

examples/assets/tests/__init__.py

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+import unittest
+from unittest.mock import MagicMock, patch, call
+import sys
+import argparse
+import os
+
+# Add the repository root directory to the system path
+sys.path.insert(0, os.path.abspath(os.path.join(os.path.dirname(__file__), "..", "..", "..")))
+
+from examples.assets import add_hotel_callout
+try:
+    from google.ads.googleads.client import GoogleAdsClient as RealGoogleAdsClient
+except ImportError:
+    RealGoogleAdsClient = MagicMock()
+
+class TestAddHotelCallout(unittest.TestCase):
+
+    @patch("examples.assets.add_hotel_callout.GoogleAdsClient")
+    def test_add_hotel_callout_assets(self, mock_google_ads_client_constructor):
+        mock_client_instance = mock_google_ads_client_constructor.return_value
+        mock_asset_service = MagicMock()
+        mock_client_instance.get_service.return_value = mock_asset_service
+
+        mock_operations = [MagicMock(), MagicMock()]
+        mock_client_instance.get_type.side_effect = mock_operations
+
+        customer_id = "test_customer_123"
+        language_code = "en"
+        expected_texts = ["Activities", "Facilities"]
+
+        mock_results = [MagicMock(resource_name=f"asset_rn_{i}") for i in range(len(expected_texts))]
+        mock_asset_service.mutate_assets.return_value.results = mock_results
+
+        returned_resource_names = add_hotel_callout.add_hotel_callout_assets(
+            mock_client_instance, customer_id, language_code
+        )
+
+        self.assertEqual(mock_client_instance.get_type.call_count, len(expected_texts))
+        mock_client_instance.get_type.assert_called_with("AssetOperation")
+
+        for i, text in enumerate(expected_texts):
+            asset_mock = mock_operations[i].create
+            self.assertEqual(asset_mock.hotel_callout_asset.text, text)
+            self.assertEqual(asset_mock.hotel_callout_asset.language_code, language_code)
+
+        mock_asset_service.mutate_assets.assert_called_once_with(
+            customer_id=customer_id, operations=mock_operations
+        )
+        self.assertEqual(returned_resource_names, [res.resource_name for res in mock_results])
+
+    @patch("examples.assets.add_hotel_callout.GoogleAdsClient")
+    def test_link_asset_to_account(self, mock_google_ads_client_constructor):
+        mock_client_instance = mock_google_ads_client_constructor.return_value
+        mock_customer_asset_service = MagicMock()
+        mock_client_instance.get_service.return_value = mock_customer_asset_service
+
+        mock_operations = [MagicMock(), MagicMock()]
+        mock_client_instance.get_type.side_effect = mock_operations
+        mock_client_instance.enums.AssetFieldTypeEnum.HOTEL_CALLOUT = "HOTEL_CALLOUT_ENUM"
+
+        customer_id = "test_customer_123"
+        resource_names = ["asset_rn_0", "asset_rn_1"]
+
+        mock_results = [MagicMock(resource_name=f"ca_asset_rn_{i}") for i in range(len(resource_names))]
+        mock_customer_asset_service.mutate_customer_assets.return_value.results = mock_results
+
+        add_hotel_callout.link_asset_to_account(
+            mock_client_instance, customer_id, resource_names
+        )
+
+        self.assertEqual(mock_client_instance.get_type.call_count, len(resource_names))
+        mock_client_instance.get_type.assert_called_with("CustomerAssetOperation")
+
+        for i, rn in enumerate(resource_names):
+            customer_asset_mock = mock_operations[i].create
+            self.assertEqual(customer_asset_mock.asset, rn)
+            self.assertEqual(customer_asset_mock.field_type, "HOTEL_CALLOUT_ENUM")
+
+        mock_customer_asset_service.mutate_customer_assets.assert_called_once_with(
+            customer_id=customer_id, operations=mock_operations
+        )
+
+    @patch("examples.assets.add_hotel_callout.link_asset_to_account")
+    @patch("examples.assets.add_hotel_callout.add_hotel_callout_assets")
+    def test_main_function_logic(self, mock_add_assets, mock_link_assets):
+        mock_client_instance = MagicMock()
+        customer_id = "test_customer_123"
+        language_code = "fr"
+
+        mock_asset_resource_names = ["asset1", "asset2"]
+        mock_add_assets.return_value = mock_asset_resource_names
+
+        add_hotel_callout.main(mock_client_instance, customer_id, language_code)
+
+        mock_add_assets.assert_called_once_with(mock_client_instance, customer_id, language_code)
+        mock_link_assets.assert_called_once_with(mock_client_instance, customer_id, mock_asset_resource_names)
+
+# TestMainExecution class removed due to persistent issues with runpy and mock interaction.
+
+if __name__ == "__main__":
+    unittest.main()