Step 5 implemented

tests/api/test_health.py

@@ -0,0 +1,21 @@
+"""Tests for transcription.api.health."""
+
+from fastapi import FastAPI
+from fastapi.testclient import TestClient
+
+from transcription.api.health import router
+
+
+class TestHealthEndpoint:
+    """Verify /healthz endpoint behavior."""
+
+    def test_healthz_returns_ok_status(self):
+        """GET /healthz returns a healthy status payload."""
+        app = FastAPI()
+        app.include_router(router)
+        client = TestClient(app)
+
+        response = client.get("/healthz")
+
+        assert response.status_code == 200
+        assert response.json() == {"status": "ok"}