class SanityCheck(unittest.TestCase):
def setUp(self):
super().setUp()
self.r = Roman()
def testSanity(self):
"""fromRoman(toRoman(n))==n for all n"""
for integer in range(1, 4000):
numeral = self.r.toRoman(integer)
result = self.r.fromRoman(numeral)
self.assertEqual(integer, result)
class CaseCheck(unittest.TestCase):
def setUp(self):
super().setUp()
self.r = Roman()
def testToRomanCase(self):
"""toRoman should always return uppercase"""
for integer in range(1, 4000):
numeral = self.r.toRoman(integer)
self.assertEqual(numeral, numeral.upper())
def testFromRomanCase(self):
"""fromRoman should only accept uppercase input"""
for integer in range(1, 4000):
numeral = self.r.toRoman(integer)
self.r.fromRoman(numeral.upper())
self.assertRaises(InvalidRomanNumeralError,
self.r.fromRoman, numeral.lower())
def setUp(self):
super().setUp()
self.r = Roman()
def setUp(self):
super().setUp()
self.r = Roman()
class KnownValues(unittest.TestCase):
def setUp(self):
super().setUp()
self.r = Roman()
knownValues = ((1, 'I'),
(2, 'II'),
(3, 'III'),
(4, 'IV'),
(5, 'V'),
(6, 'VI'),
(7, 'VII'),
(8, 'VIII'),
(9, 'IX'),
(10, 'X'),
(50, 'L'),
(100, 'C'),
(500, 'D'),
(1000, 'M'),
(31, 'XXXI'),
(148, 'CXLVIII'),
(294, 'CCXCIV'),
(312, 'CCCXII'),
(421, 'CDXXI'),
(528, 'DXXVIII'),
(621, 'DCXXI'),
(782, 'DCCLXXXII'),
(870, 'DCCCLXX'),
(941, 'CMXLI'),
(1043, 'MXLIII'),
(1110, 'MCX'),
(1226, 'MCCXXVI'),
(1301, 'MCCCI'),
(1485, 'MCDLXXXV'),
(1509, 'MDIX'),
(1607, 'MDCVII'),
(1754, 'MDCCLIV'),
(1832, 'MDCCCXXXII'),
(1993, 'MCMXCIII'),
(2074, 'MMLXXIV'),
(2152, 'MMCLII'),
(2212, 'MMCCXII'),
(2343, 'MMCCCXLIII'),
(2499, 'MMCDXCIX'),
(2574, 'MMDLXXIV'),
(2646, 'MMDCXLVI'),
(2723, 'MMDCCXXIII'),
(2892, 'MMDCCCXCII'),
(2975, 'MMCMLXXV'),
(3051, 'MMMLI'),
(3185, 'MMMCLXXXV'),
(3250, 'MMMCCL'),
(3313, 'MMMCCCXIII'),
(3408, 'MMMCDVIII'),
(3501, 'MMMDI'),
(3610, 'MMMDCX'),
(3743, 'MMMDCCXLIII'),
(3844, 'MMMDCCCXLIV'),
(3888, 'MMMDCCCLXXXVIII'),
(3940, 'MMMCMXL'),
(3999, 'MMMCMXCIX'))
def testToRomanKnownValues(self):
"""toRoman should give known result with known input"""
for integer, numeral in self.knownValues:
result = self.r.toRoman(integer)
self.assertEqual(numeral, result)
def testFromRomanKnownValues(self):
"""fromRoman should give known result with known input"""
for integer, numeral in self.knownValues:
result = self.r.fromRoman(numeral)
self.assertEqual(integer, result)
def testSingleton(self):
self.r2 = Roman()
self.assertTrue(id(self.r) == id(self.r2))
