def test_convert_to_roman_numeral_900(self): self.assertEqual('CM', convert_to_roman_numeral(900))
def test_convert_to_roman_numeral_10000(self): self.assertEqual('MMMMMMMMMM', convert_to_roman_numeral(10000))
def test_convert_to_roman_numeral_500(self): self.assertEqual('D', convert_to_roman_numeral(500))
def test_convert_to_roman_numeral_1(self): self.assertEqual('I', convert_to_roman_numeral(1))
def test_convert_to_roman_numeral_60(self): self.assertEqual('LX', convert_to_roman_numeral(60))
def test_convert_to_roman_numeral_400(self): self.assertEqual('CD', convert_to_roman_numeral(400))
def test_convert_to_roman_numeral_20(self): self.assertEqual('XX', convert_to_roman_numeral(20))
def test_convert_to_roman_numeral_6(self): self.assertEqual('VI', convert_to_roman_numeral(6))
def test_convert_to_roman_numeral_5(self): self.assertEqual('V', convert_to_roman_numeral(5))
def test_convert_to_roman_numeral_9(self): self.assertEqual('IX', convert_to_roman_numeral(9))
def test_convert_to_roman_numeral_4(self): self.assertEqual('IV', convert_to_roman_numeral(4))