Set up test environment for testing

.drone.yml

@@ -7,9 +7,13 @@ steps:
 - name: test
   image: python:3.10
   commands:
-    - "python -m pip install poetry"
-    - "poetry install"
-    - "pytest"
+    - VIRTUAL_ENV=/opt/venv
+    - "python3 -m venv pip $VIRTUAL_ENV"
+    - PATH="$VIRTUAL_ENV/bin:$PATH"
+    - python -m pip install poetry
+    - poetry install
+    - poetry env info
+    - pytest
 - name: build container
   image: plugins/docker
   settings: