feat: add tests for Crown Commend health and generate endpoints

tests/test_commend.py

@@ -0,0 +1,27 @@
+"""Tests for Crown Commend endpoints."""
+
+from __future__ import annotations
+
+from fastapi.testclient import TestClient
+
+
+def test_commend_health(client: TestClient) -> None:
+    """Commend health endpoint should return status information."""
+    response = client.get("/api/commend/health")
+    assert response.status_code == 200
+    data = response.json()
+    assert "gemini" in data
+    assert "youtube" in data
+
+
+def test_commend_generate_rejects_invalid_url(client: TestClient) -> None:
+    """Generate endpoint should reject a non-YouTube URL."""
+    response = client.post(
+        "/api/commend/generate",
+        json={
+            "url": "https://example.com",
+            "language": "en",
+            "style": "supportive",
+        },
+    )
+    assert response.status_code in (400, 422)