def test_it_should_return_an_empty_string_when_the_Arabic_number_is_1(self):
     self.assertEqual("I", roman_numerals.convert_to_roman_numeral(1))
 def test_it_should_return_Roman_Numeral_MMMMMMMCMXXI_when_the_Arabic_number_is_7921(self):
     self.assertEqual("MMMMMMMCMXXI", roman_numerals.convert_to_roman_numeral(7921))
 def test_it_should_return_Roman_Numeral_XCIX_when_the_Arabic_number_is_99(self):
     self.assertEqual("XCIX", roman_numerals.convert_to_roman_numeral(99))
 def test_it_should_return_Roman_Numeral_C_when_the_Arabic_number_is_100(self):
     self.assertEqual("C", roman_numerals.convert_to_roman_numeral(100))
 def test_it_should_return_Roman_Numeral_LXXXVII_when_the_Arabic_number_is_87(self):
     self.assertEqual("LXXXVII", roman_numerals.convert_to_roman_numeral(87))
 def test_it_should_return_Roman_Numeral_XLIII_when_the_Arabic_number_is_43(self):
     self.assertEqual("XLIII", roman_numerals.convert_to_roman_numeral(43))
 def test_empty_string_returned_for_arabic_number_zero(self):
     self.assertEqual("", roman_numerals.convert_to_roman_numeral(0))
 def test_it_should_return_Roman_Numeral_XIV_when_the_Arabic_number_is_14(self):
     self.assertEqual("XIV", roman_numerals.convert_to_roman_numeral(14))
 def test_it_should_return_Roman_Numeral_VI_when_the_Arabic_number_is_6(self):
     self.assertEqual("VI", roman_numerals.convert_to_roman_numeral(6))