def test_from_roman_case(self):
"""from_roman should only accept uppercase input"""
for integer in range(1, 5000):
numeral = roman.to_roman(integer)
roman.from_roman(numeral.upper())
self.assertRaises(roman.InvalidRomanNumeralError,
roman.from_roman, numeral.lower())
def test_to_roman(self):
"""to_roman should give known result with known input"""
for integer, numeral in self.known_values:
result = roman.to_roman(integer)
self.assertEqual(numeral, result)
def test_to_roman_case(self):
"""to_roman should always return uppercase"""
for integer in range(1, 5000):
numeral = roman.to_roman(integer)
self.assertEqual(numeral, numeral.upper())
def test_round_trip(self):
"""from_roman(to_roman(n))==n for all n"""
for integer in range(1, 5000):
numeral = roman.to_roman(integer)
result = roman.from_roman(numeral)
self.assertEqual(integer, result)