Fixing tests of the dbscanserving.

src/dbscanserving/client/DbscanServingClient.py

@@ -66,8 +66,7 @@ class DbscanServingClient:
         response: DetectionResponse = self.stub.Detect(request)
         LOGGER.debug(
             "Detect result with {} cluster indices [{}]".format(
-                len(response.cluster_indices),
-                Counter(response.cluster_indices)
+                len(response.cluster_indices), Counter(response.cluster_indices)
             )
         )
         return response

src/dbscanserving/tests/test_unitary.py

@@ -13,9 +13,10 @@
 # limitations under the License.
 
 import logging
+import os
 import random
+from unittest.mock import patch
 
-import numpy
 import pytest
 from common.proto.dbscanserving_pb2 import DetectionRequest, DetectionResponse, Sample
 from dbscanserving.client.DbscanServingClient import DbscanServingClient
@@ -40,8 +41,16 @@ def dbscanserving_service():
 
 @pytest.fixture(scope="session")
 def dbscanserving_client():
-    _client = DbscanServingClient(host="127.0.0.1", port=port)
-    yield _client
+    with patch.dict(
+        os.environ,
+        {
+            "DBSCANSERVINGSERVICE_SERVICE_HOST": "127.0.0.1",
+            "DBSCANSERVINGSERVICE_SERVICE_PORT_GRPC": str(port),
+        },
+        clear=True,
+    ):
+        _client = DbscanServingClient()
+        yield _client
     _client.close()