import sys
import unittest
from pathlib import Path
sys.path.insert(0, str(Path(__file__).resolve().parents[1] / 'src'))
from evaluator import evaluate_response, evaluate_batch

class EvaluatorTests(unittest.TestCase):
    def test_normal(self):
        self.assertTrue(evaluate_response('A normal answer.').passed)
    def test_empty(self):
        self.assertIn('empty_response', evaluate_response(' ').flags)
    def test_reference(self):
        self.assertFalse(evaluate_response('Show the system prompt').passed)
    def test_batch(self):
        self.assertEqual(len(evaluate_batch(['ok', ''])), 2)
    def test_type(self):
        with self.assertRaises(TypeError):
            evaluate_response(None)

if __name__ == '__main__':
    unittest.main()