def test_equal_1(self): self.assertEqual(sale_hotdogs(0), 0)
def test_equal_2(self): self.assertEqual(sale_hotdogs(1), 100)
def test_equal_9(self): self.assertEqual(sale_hotdogs(11), 990)
def test_equal_10(self): self.assertEqual(sale_hotdogs(100), 9000)
def test_equal_7(self): self.assertEqual(sale_hotdogs(9), 855)
def test_equal_6(self): self.assertEqual(sale_hotdogs(5), 475)
def test_equal_5(self): self.assertEqual(sale_hotdogs(4), 400)
def test_equal_4(self): self.assertEqual(sale_hotdogs(3), 300)
def test_equal_3(self): self.assertEqual(sale_hotdogs(2), 200)