Clean async tests transport (Azure#16973)

sdk/storage/azure-storage-blob/tests/test_blob_client_async.py

@@ -15,9 +15,6 @@
     ContainerClient,
     BlobClient,
 )
-from devtools_testutils import ResourceGroupPreparer, StorageAccountPreparer
-from azure.core.pipeline.transport import AioHttpTransport
-from multidict import CIMultiDict, CIMultiDictProxy
 from _shared.testcase import GlobalStorageAccountPreparer
 from devtools_testutils.storage.aio import AsyncStorageTestCase
 
@@ -33,17 +30,6 @@
 _CONNECTION_ENDPOINTS_SECONDARY = {'blob': 'BlobSecondaryEndpoint'}
 
 
-class AiohttpTestTransport(AioHttpTransport):
-    """Workaround to vcrpy bug: https://github.com/kevin1024/vcrpy/pull/461
-    """
-    async def send(self, request, **config):
-        response = await super(AiohttpTestTransport, self).send(request, **config)
-        if not isinstance(response.headers, CIMultiDictProxy):
-            response.headers = CIMultiDictProxy(CIMultiDict(response.internal_response.headers))
-            response.content_type = response.headers.get("content-type")
-        return response
-
-
 class StorageClientTestAsync(AsyncStorageTestCase):
     def setUp(self):
         super(StorageClientTestAsync, self).setUp()
@@ -494,7 +480,7 @@ def test_create_blob_client_with_sub_directory_path_in_blob_name(self):
     @AsyncStorageTestCase.await_prepared_test
     async def test_request_callback_signed_header_async(self, resource_group, location, storage_account, storage_account_key):
         # Arrange
-        service = BlobServiceClient(self.account_url(storage_account, "blob"), credential=storage_account_key, transport=AiohttpTestTransport())
+        service = BlobServiceClient(self.account_url(storage_account, "blob"), credential=storage_account_key)
         name = self.get_resource_name('cont')
 
         # Act
@@ -514,7 +500,7 @@ def callback(request):
     @AsyncStorageTestCase.await_prepared_test
     async def test_response_callback_async(self, resource_group, location, storage_account, storage_account_key):
         # Arrange
-        service = BlobServiceClient(self.account_url(storage_account, "blob"), credential=storage_account_key, transport=AiohttpTestTransport())
+        service = BlobServiceClient(self.account_url(storage_account, "blob"), credential=storage_account_key)
         name = self.get_resource_name('cont')
         container = service.get_container_client(name)
 
@@ -530,7 +516,7 @@ def callback(response):
     @GlobalStorageAccountPreparer()
     @AsyncStorageTestCase.await_prepared_test
     async def test_user_agent_default_async(self, resource_group, location, storage_account, storage_account_key):
-        service = BlobServiceClient(self.account_url(storage_account, "blob"), credential=storage_account_key, transport=AiohttpTestTransport())
+        service = BlobServiceClient(self.account_url(storage_account, "blob"), credential=storage_account_key)
 
         def callback(response):
             self.assertTrue('User-Agent' in response.http_request.headers)
@@ -543,7 +529,7 @@ def callback(response):
     async def test_user_agent_custom_async(self, resource_group, location, storage_account, storage_account_key):
         custom_app = "TestApp/v1.0"
         service = BlobServiceClient(
-            self.account_url(storage_account, "blob"), credential=storage_account_key, user_agent=custom_app, transport=AiohttpTestTransport())
+            self.account_url(storage_account, "blob"), credential=storage_account_key, user_agent=custom_app)
 
         def callback(response):
             self.assertTrue('User-Agent' in response.http_request.headers)
@@ -566,7 +552,7 @@ def callback(response):
     @GlobalStorageAccountPreparer()
     @AsyncStorageTestCase.await_prepared_test
     async def test_user_agent_append_async(self, resource_group, location, storage_account, storage_account_key):
-        service = BlobServiceClient(self.account_url(storage_account, "blob"), credential=storage_account_key, transport=AiohttpTestTransport())
+        service = BlobServiceClient(self.account_url(storage_account, "blob"), credential=storage_account_key)
 
         def callback(response):
             self.assertTrue('User-Agent' in response.http_request.headers)