import unittest class TestDiscountCalculator(unittest.TestCase): def test_no_discount(self): self.assertEqual(calculate_discounted_price(1999), 1999.0) def test_eight_percent_discount(self): self.assertEqual(calculate_discounted_price(2000), 1600.0) self.assertEqual(calculate_discounted_price(2500), 2000.0) def test_seven_percent_discount(self): self.assertEqual(calculate_discounted_price(3000), 2100.0) self.assertEqual(calculate_discounted_price(3500), 2450.0) def test_six_percent_discount(self): self.assertEqual(calculate_discounted_price(4000), 2400.0) self.assertEqual(calculate_discounted_price(5000), 3000.0) if __name__ == '__main__': unittest.main()