Test the google tasks api connection in setup (#132657)

Improve google tasks setup

tests/components/google_tasks/conftest.py

@@ -1,10 +1,12 @@
 """Test fixtures for Google Tasks."""
 
 from collections.abc import Awaitable, Callable
+import json
 import time
 from typing import Any
-from unittest.mock import patch
+from unittest.mock import Mock, patch
 
+from httplib2 import Response
 import pytest
 
 from homeassistant.components.application_credentials import (
@@ -24,6 +26,14 @@ FAKE_ACCESS_TOKEN = "some-access-token"
 FAKE_REFRESH_TOKEN = "some-refresh-token"
 FAKE_AUTH_IMPL = "conftest-imported-cred"
 
+TASK_LIST = {
+    "id": "task-list-id-1",
+    "title": "My tasks",
+}
+LIST_TASK_LIST_RESPONSE = {
+    "items": [TASK_LIST],
+}
+
 
 @pytest.fixture
 def platforms() -> list[Platform]:
@@ -89,3 +99,31 @@ async def mock_integration_setup(
         return result
 
     return run
+
+
+@pytest.fixture(name="api_responses")
+def mock_api_responses() -> list[dict | list]:
+    """Fixture forcreate_response_object API responses to return during test."""
+    return []
+
+
+def create_response_object(api_response: dict | list) -> tuple[Response, bytes]:
+    """Create an http response."""
+    return (
+        Response({"Content-Type": "application/json"}),
+        json.dumps(api_response).encode(),
+    )
+
+
+@pytest.fixture(name="response_handler")
+def mock_response_handler(api_responses: list[dict | list]) -> list:
+    """Create a mock http2lib response handler."""
+    return [create_response_object(api_response) for api_response in api_responses]
+
+
+@pytest.fixture
+def mock_http_response(response_handler: list | Callable) -> Mock:
+    """Fixture to fake out http2lib responses."""
+
+    with patch("httplib2.Http.request", side_effect=response_handler) as mock_response:
+        yield mock_response