from services.reporting import generate_report
from routes.reporting import router
from fastapi.testclient import TestClient
from main import app
import pytest

# Function test
def test_generate_report_empty():
    report = generate_report([])
    assert isinstance(report, dict)

# Endpoint test
def test_reporting_endpoint_invalid_input():
    client = TestClient(app)
    resp = client.post("/api/reporting/summary", json={})
    assert resp.status_code == 400
    assert resp.json()["detail"] == "Invalid input format"


def test_reporting_endpoint_success():
    client = TestClient(app)
    # Minimal input: list of dicts
    input_data = [{"iteration": 1, "result": 10.0}]
    resp = client.post("/api/reporting/summary", json=input_data)
    assert resp.status_code == 200
    data = resp.json()
    assert isinstance(data, dict)