1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
|
Description: add test suite
Add test suite, extracted from the “Dive Into Python” book (package
diveintopython).
Author: Mark Pilgrim <mark@diveintopython.org>
Origin: upstream
Last-Update: 2012-05-05
--- /dev/null
+++ b/tests/romantest.py
@@ -0,0 +1,153 @@
+"""Unit test for roman.py
+
+This program is part of "Dive Into Python", a free Python book for
+experienced programmers. Visit http://diveintopython.org/ for the
+latest version.
+"""
+
+__author__ = "Mark Pilgrim (mark@diveintopython.org)"
+__version__ = "$Revision: 1.2 $"
+__date__ = "$Date: 2004/05/05 21:57:19 $"
+__copyright__ = "Copyright (c) 2001 Mark Pilgrim"
+__license__ = "Python"
+
+import roman
+import unittest
+
+class KnownValues(unittest.TestCase):
+ 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'),
+ (4000, 'MMMM'),
+ (4500, 'MMMMD'),
+ (4888, 'MMMMDCCCLXXXVIII'),
+ (4999, 'MMMMCMXCIX'))
+
+ def testToRomanKnownValues(self):
+ """toRoman should give known result with known input"""
+ for integer, numeral in self.knownValues:
+ result = roman.toRoman(integer)
+ self.assertEqual(numeral, result)
+
+ def testFromRomanKnownValues(self):
+ """fromRoman should give known result with known input"""
+ for integer, numeral in self.knownValues:
+ result = roman.fromRoman(numeral)
+ self.assertEqual(integer, result)
+
+class ToRomanBadInput(unittest.TestCase):
+ def testTooLarge(self):
+ """toRoman should fail with large input"""
+ self.assertRaises(roman.OutOfRangeError, roman.toRoman, 5000)
+
+ def testZero(self):
+ """toRoman should fail with 0 input"""
+ self.assertRaises(roman.OutOfRangeError, roman.toRoman, 0)
+
+ def testNegative(self):
+ """toRoman should fail with negative input"""
+ self.assertRaises(roman.OutOfRangeError, roman.toRoman, -1)
+
+ def testDecimal(self):
+ """toRoman should fail with non-integer input"""
+ self.assertRaises(roman.NotIntegerError, roman.toRoman, 0.5)
+
+class FromRomanBadInput(unittest.TestCase):
+ def testTooManyRepeatedNumerals(self):
+ """fromRoman should fail with too many repeated numerals"""
+ for s in ('MMMMM', 'DD', 'CCCC', 'LL', 'XXXX', 'VV', 'IIII'):
+ self.assertRaises(roman.InvalidRomanNumeralError, roman.fromRoman, s)
+
+ def testRepeatedPairs(self):
+ """fromRoman should fail with repeated pairs of numerals"""
+ for s in ('CMCM', 'CDCD', 'XCXC', 'XLXL', 'IXIX', 'IVIV'):
+ self.assertRaises(roman.InvalidRomanNumeralError, roman.fromRoman, s)
+
+ def testMalformedAntecedent(self):
+ """fromRoman should fail with malformed antecedents"""
+ for s in ('IIMXCC', 'VX', 'DCM', 'CMM', 'IXIV',
+ 'MCMC', 'XCX', 'IVI', 'LM', 'LD', 'LC'):
+ self.assertRaises(roman.InvalidRomanNumeralError, roman.fromRoman, s)
+
+ def testBlank(self):
+ """fromRoman should fail with blank string"""
+ self.assertRaises(roman.InvalidRomanNumeralError, roman.fromRoman, "")
+
+class SanityCheck(unittest.TestCase):
+ def testSanity(self):
+ """fromRoman(toRoman(n))==n for all n"""
+ for integer in range(1, 5000):
+ numeral = roman.toRoman(integer)
+ result = roman.fromRoman(numeral)
+ self.assertEqual(integer, result)
+
+class CaseCheck(unittest.TestCase):
+ def testToRomanCase(self):
+ """toRoman should always return uppercase"""
+ for integer in range(1, 5000):
+ numeral = roman.toRoman(integer)
+ self.assertEqual(numeral, numeral.upper())
+
+ def testFromRomanCase(self):
+ """fromRoman should only accept uppercase input"""
+ for integer in range(1, 5000):
+ numeral = roman.toRoman(integer)
+ roman.fromRoman(numeral.upper())
+ self.assertRaises(roman.InvalidRomanNumeralError,
+ roman.fromRoman, numeral.lower())
+
+if __name__ == "__main__":
+ unittest.main()
|
