Test that CSVs are exported

tests/test_simulations.py

@@ -40,6 +40,31 @@ def test_heat_demand():
     assert kpis["Year of construction"].value == pytest.approx(1950, abs=50)
     assert kpis["Year of construction"].unit == None
 
+    for step in ["Geometric", "Physics", "Usage"]:
+        for csv in results.get_all_by_extension(".csv"):
+            if step in csv.name:
+                pytest.fail(f"{csv.name} should not have been exported")
+
+
+@pytest.mark.integration
+def test_heat_demand_with_csv():
+    results = run_workflow_with_citygml(
+        TEST_TEMPLATES / "01_HeatDemand",
+        TEST_GML,
+        project_path=TEST_PROJECT,
+        description="Heat demand – MiniBuchwald",
+        csv_export=True,
+    )
+
+    output_csvs = [csv.name for csv in results.get_all_by_extension(".csv")]
+    for step, suffixes in [
+        ("Geometric", ["buildings", "surfaces"]),
+        ("Physics", ["buildings", "surfaces"]),
+        ("Usage", ["buildings"]),
+    ]:
+        for suffix in suffixes:
+            assert f"{step}_{TEST_GML.stem}_{suffix}.csv" in output_csvs
+
 
 @pytest.mark.integration
 def test_pv():
@@ -83,6 +108,7 @@ def test_load_profile():
     assert "Average load" in kpis
     assert kpis["Number of buildings"].value > 0
 
+
 @pytest.mark.integration
 def test_energy_grid():
     results = run_workflow_with_citygml(