support AsyncMock on 3.7

Author: daniel-sanche

tests/transport/aio/test_aiohttp.py

@@ -13,7 +13,12 @@
 # limitations under the License.
 
 import asyncio
-from unittest.mock import AsyncMock, Mock, patch
+from unittest.mock import Mock, patch
+try:
+    from unittest.mock import AsyncMock
+except ImportError:
+    # Fallback for Python < 3.8
+    from mock import AsyncMock
 
 from aioresponses import aioresponses  # type: ignore
 import pytest  # type: ignore

tests_async/oauth2/test_reauth_async.py

@@ -14,6 +14,11 @@
 
 import copy
 from unittest import mock
+try:
+    from unittest.mock import AsyncMock
+except ImportError:
+    # Fallback for Python < 3.8
+    from mock import AsyncMock
 
 import pytest  # type: ignore
 
@@ -22,7 +27,7 @@
 from google.oauth2 import reauth
 
 
-MOCK_REQUEST = mock.AsyncMock(spec=["transport.Request"])
+MOCK_REQUEST = AsyncMock(spec=["transport.Request"])
 CHALLENGES_RESPONSE_TEMPLATE = {
     "status": "CHALLENGE_REQUIRED",
     "sessionId": "123",