Configure pytest and test healthcheck

Dockerfile.dev

@@ -8,4 +8,4 @@ RUN apt-get update \
     && apt-get install -qq --no-install-recommends curl git jq ssh \
     && python -m pip install --upgrade pip
 
-RUN pip install --no-cache-dir flake8 debugpy pre-commit
+RUN pip install --no-cache-dir flake8 debugpy pre-commit coverage pytest

tests/conftest.py

@@ -0,0 +1,11 @@
+import pytest
+
+from app import app as server
+
+@pytest.fixture
+def app():
+    yield server
+
+@pytest.fixture
+def client(app):
+    return app.test_client()

tests/test_app.py

@@ -0,0 +1,4 @@
+def test_healthcheck(app, client):
+  response = client.get('/healthcheck')
+  assert response.status_code == 200
+  assert response.data == b"Healthy"