Testing CLI with just workflow name

tests/test_runner.py

@@ -3,6 +3,8 @@
 import shutil
 from pathlib import Path
 
+import pytest
+
 from simstadt.runner import run_workflow_with_citygml
 
 TEST_DATA = Path(__file__).parent / "data"
@@ -86,3 +88,15 @@ def test_citygml_creates_temp_repo(mock_simstadt):
     assert results is not None
     assert "simstadt_repo" in str(results.workflow_path)
     assert results.workflow_path.suffix == ".flow"
+
+
+@pytest.mark.integration
+def test_bundled_template_name_resolves_without_env_var(simstadt_folder, monkeypatch, tmp_path):
+    """A bare bundled template name (e.g. "103_PV") resolves via get_template_path()'s
+    fallback to the package's own templates/ directory, even with no SIMSTADT_TEMPLATE_PATH
+    set — regression test for a real (non-mocked) SimStadt run."""
+    monkeypatch.delenv("SIMSTADT_TEMPLATE_PATH", raising=False)
+    results = run_workflow_with_citygml(
+        "103_PV", CITYGML, project_path=tmp_path / "Test.proj"
+    )
+    assert any(kpi.name == "PV potential yield" for kpi in results.kpis)