import unittest
from RRefactored_Calc import add, subtract  # Import the functions from calc.py

class TestCalculator(unittest.TestCase):

    def test_add(self):
        self.assertEqual(add(3, 5), 8)
        self.assertEqual(add(-1, 1), 0)
        self.assertEqual(add(-1, -1), -2)

    def test_subtract(self):
        self.assertEqual(subtract(10, 5), 5)
        self.assertEqual(subtract(-1, -1), 0)
        self.assertEqual(subtract(5, -5), 10)

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