Add unit tests for scenarios, parameters, reporting, and simulation features

tests/unit/test_simulation.py

@@ -0,0 +1,42 @@
+from services.simulation import run_simulation
+from main import app
+from config.database import Base, engine
+from fastapi.testclient import TestClient
+import pytest
+
+# Setup and teardown
+
+
+def setup_module(module):
+    Base.metadata.create_all(bind=engine)
+
+
+def teardown_module(module):
+    Base.metadata.drop_all(bind=engine)
+
+
+client = TestClient(app)
+
+# Direct function test
+
+
+def test_run_simulation_function_returns_list():
+    results = run_simulation([], iterations=10)
+    assert isinstance(results, list)
+    assert results == []
+
+# Endpoint tests
+
+
+def test_simulation_endpoint_no_params():
+    resp = client.post("/api/simulations/run", json=[])
+    assert resp.status_code == 400
+    assert resp.json()["detail"] == "No parameters provided"
+
+
+def test_simulation_endpoint_success():
+    params = [{"name": "param1", "value": 2.5}]
+    resp = client.post("/api/simulations/run", json=params)
+    assert resp.status_code == 200
+    data = resp.json()
+    assert isinstance(data, list)