feat: add Python integration tests for HTTP endpoints

pipeline-runner/tests/test_smoke.py

@@ -0,0 +1,26 @@
+"""Smoke tests for pipeline-runner REST API endpoints."""
+
+import pytest
+import requests
+
+
+test_get_endpoints = [
+    ("api/pipelines", 200, list),
+    ("api/runs/nonexistent-id/status", 404, dict),
+]
+
+
+@pytest.mark.parametrize("endpoint,expected_status,expected_type", test_get_endpoints)
+def test_get_endpoints(pipeline_server, endpoint, expected_status, expected_type):
+    """Check HTTP status code and response content-type for GET endpoints."""
+    response = requests.get(f"{pipeline_server.base_url}/{endpoint}")
+    assert response.status_code == expected_status
+    assert "application/json" in response.headers.get("Content-Type", "")
+    data = response.json()
+    assert isinstance(data, expected_type)
+
+
+def test_cors_headers(pipeline_server):
+    """Check that CORS headers are present on responses."""
+    response = requests.get(f"{pipeline_server.base_url}/api/pipelines")
+    assert response.headers.get("Access-Control-Allow-Origin") == "*"