feat: asyncio microgen collection (#119)

* feat: make collections call backed by async * fix: failing asyncmock assertion * fix: lint * refactor: move AsyncMock to test helpers * feat: integrate microgen async client to collection * fix: lint

Author: rafilong

google/cloud/firestore_v1/async_collection.py

@@ -110,7 +110,7 @@ async def list_documents(self, page_size=None):
  """
  parent, _ = self._parent_info()
 
- iterator = self._client._firestore_api.list_documents(
+ iterator = await self._client._firestore_api.list_documents(
  request={
  "parent": parent,
  "collection_id": self.id,

tests/unit/v1/test_async_collection.py

@@ -17,6 +17,7 @@
 import aiounittest
 
 import mock
+from tests.unit.v1.test__helpers import AsyncMock
 
 
 class MockAsyncIter:
@@ -196,7 +197,6 @@ async def _list_documents_helper(self, page_size=None):
  from google.api_core.page_iterator import Iterator
  from google.api_core.page_iterator import Page
  from google.cloud.firestore_v1.async_document import AsyncDocumentReference
- from google.cloud.firestore_v1.services.firestore.client import FirestoreClient
  from google.cloud.firestore_v1.types.document import Document
 
  class _Iterator(Iterator):
@@ -216,9 +216,10 @@ def _next_page(self):
  Document(name=template.format(document_id)) for document_id in document_ids
  ]
  iterator = _Iterator(pages=[documents])
- api_client = mock.create_autospec(FirestoreClient)
- api_client.list_documents.return_value = iterator
- client._firestore_api_internal = api_client
+ firestore_api = AsyncMock()
+ firestore_api.mock_add_spec(spec=["list_documents"])
+ firestore_api.list_documents.return_value = iterator
+ client._firestore_api_internal = firestore_api
  collection = self._make_one("collection", client=client)
 
  if page_size is not None:
@@ -234,7 +235,7 @@ def _next_page(self):
  self.assertEqual(document.id, document_id)
 
  parent, _ = collection._parent_info()
- api_client.list_documents.assert_called_once_with(
+ firestore_api.list_documents.assert_called_once_with(
  request={
  "parent": parent,
  "collection_id": collection.id,