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tabo / numconv

Python library to convert strings to numbers and numbers to strings. Docs: http://docs.tabo.pe/numconv/tip/

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numconv / tests.py

commit: dac783631be1
parent: 882b6d180761
branch: default
tags: 2.1

newline

Who: Gustavo Picon
When: 16 April 2010

# -*- coding: utf-8 -*-

"""Test numconv.py"""

from numconv import NumConv, int2str, str2int, BASE85
import unittest


class BaseconvI2s(unittest.TestCase):
    """tests for int2str()"""

    def test_i2s(self):
        """testing int2str: expected values"""
        self.assertEqual(int2str(3735928559, 16), 'DEADBEEF')
        self.assertEqual(int2str(238327, 62), 'zzz')
        self.assertEqual(int2str(14776335, 62), 'zzzz')
        self.assertEqual(int2str(466, 7), '1234')
        self.assertEqual(int2str(151880, 2), '100101000101001000')
        self.assertEqual(int2str(2693233728041137, 85), '~123AFz@')
        self.assertEqual(int2str(543543, 40), '8JSN')
        self.assertEqual(int2str(1949459, 61), '8ZtL')
        self.assertEqual(int2str(19284, 2), '100101101010100')
        self.assertEqual(int2str(100, 10, 'abcdefghijklm'), 'baa')
        self.assertEqual(int2str(37, 4, 'rofl'), 'foo')

    def test_i2s_nonint_number(self):
        """testing int2str: error on non-integer number"""
        self.assertRaises(TypeError, int2str, 0.1, 8)

    def test_i2s_nonint_radix(self):
        """testing int2str: error on non-integer radix"""
        self.assertRaises(TypeError, int2str, 100, 0.1)

    def test_i2s_invalid_radix(self):
        """testing int2str: error on invalid radix"""
        self.assertRaises(ValueError, int2str, 100, -10)
        self.assertRaises(ValueError, int2str, 100, 10, 'abcde')

    def test_i2s_negative_number(self):
        """testing int2str: error on negative number"""
        self.assertRaises(ValueError, int2str, -100, 10)


class BaseconvS2i(unittest.TestCase):
    """tests for str2int()"""

    def test_s2i(self):
        """testing str2int: expected values"""
        self.assertEqual(str2int('DEADBEEF', 16), 3735928559)
        self.assertEqual(str2int('zzz', 62), 238327)
        self.assertEqual(str2int('zzzz', 62), 14776335)
        self.assertEqual(str2int('1234', 7), 466)
        self.assertEqual(str2int('100101000101001000', 2), 151880)
        self.assertEqual(str2int('~123AFz@', 85), 2693233728041137)
        self.assertEqual(str2int('8JSN', 40), 543543)
        self.assertEqual(str2int('8ZtL', 61), 1949459)
        self.assertEqual(str2int('100101101010100', 2), 19284)
        self.assertEqual(str2int('baa', 10, 'abcdefghijklm'), 100)
        self.assertEqual(str2int('foo', 4, 'rofl'), 37)

    def test_s2i_nonint_base(self):
        """testing str2int: error on non-integer base"""
        self.assertRaises(TypeError, str2int, '100', 0.1)

    def test_s2i_bad_number(self):
        """testing str2int: error on invalid number"""
        # raised by python
        self.assertRaises(ValueError, str2int, '1234z', 8)
        # raised by numconv.py
        self.assertRaises(ValueError, str2int, '1234z', 37)

    def test_s2i_invalid_radix(self):
        """testing str2int: error on invalid radix"""
        self.assertRaises(ValueError, str2int, 'abcd', -10)


class BaseconvCmap(unittest.TestCase):
    """tests for getcmap()"""

    def test_get_cmap(self):
        """testing get_cmap: expected values"""
        self.assertEqual(NumConv(alphabet='0123456789').cached_map,
            {'0': 0, '1': 1, '2': 2, '3': 3, '4': 4,
             '5': 5, '6': 6, '7': 7, '8': 8, '9': 9})
        self.assertEqual(NumConv(radix=4, alphabet='abcd').cached_map,
            {'a': 0, 'b': 1, 'c': 2, 'd': 3})

    def test_getcmap_dupechars(self):
        """testing getcmap: error on alphabet with duplicate chars"""
        self.assertRaises(ValueError, NumConv, 6, 'abcdaf')


class BaseconvSanity(unittest.TestCase):
    """sanity checks"""

    def test_sanity(self):
        """sanity check: testing a large interval and lots of radixes"""
        for radix in range(2, len(BASE85)):
            ncobj = NumConv(radix)
            for num in list(range(1000)) + [10 ** x for x in range(5, 15)]:
                self.assertEqual(num, ncobj.str2int(ncobj.int2str(num)))

if __name__ == "__main__":
    unittest.main()

1	`a035ba7fb21b`	# -- coding: utf-8 --
2	`a035ba7fb21b`
3	`a035ba7fb21b`	"""Test numconv.py"""
4	`a035ba7fb21b`
5	`6ae83e41ff11`	from numconv import NumConv, int2str, str2int, BASE85
6	`a035ba7fb21b`	import unittest
7	`a035ba7fb21b`
8	`a035ba7fb21b`
9	`a035ba7fb21b`	class BaseconvI2s(unittest.TestCase):
10	`a035ba7fb21b`	"""tests for int2str()"""
11	`a035ba7fb21b`
12	`a035ba7fb21b`	def test_i2s(self):
13	`a035ba7fb21b`	"""testing int2str: expected values"""
14	`6ae83e41ff11`	self.assertEqual(int2str(3735928559, 16), 'DEADBEEF')
15	`6ae83e41ff11`	self.assertEqual(int2str(238327, 62), 'zzz')
16	`6ae83e41ff11`	self.assertEqual(int2str(14776335, 62), 'zzzz')
17	`6ae83e41ff11`	self.assertEqual(int2str(466, 7), '1234')
18	`6ae83e41ff11`	self.assertEqual(int2str(151880, 2), '100101000101001000')
19	`434a77c07a95`	self.assertEqual(int2str(2693233728041137, 85), '~123AFz@')
20	`6ae83e41ff11`	self.assertEqual(int2str(543543, 40), '8JSN')
21	`6ae83e41ff11`	self.assertEqual(int2str(1949459, 61), '8ZtL')
22	`6ae83e41ff11`	self.assertEqual(int2str(19284, 2), '100101101010100')
23	`6ae83e41ff11`	self.assertEqual(int2str(100, 10, 'abcdefghijklm'), 'baa')
24	`6ae83e41ff11`	self.assertEqual(int2str(37, 4, 'rofl'), 'foo')
25	`a035ba7fb21b`
26	`a035ba7fb21b`	def test_i2s_nonint_number(self):
27	`a035ba7fb21b`	"""testing int2str: error on non-integer number"""
28	`6ae83e41ff11`	self.assertRaises(TypeError, int2str, 0.1, 8)
29	`a035ba7fb21b`
30	`a035ba7fb21b`	def test_i2s_nonint_radix(self):
31	`a035ba7fb21b`	"""testing int2str: error on non-integer radix"""
32	`6ae83e41ff11`	self.assertRaises(TypeError, int2str, 100, 0.1)
33	`a035ba7fb21b`
34	`a035ba7fb21b`	def test_i2s_invalid_radix(self):
35	`a035ba7fb21b`	"""testing int2str: error on invalid radix"""
36	`6ae83e41ff11`	self.assertRaises(ValueError, int2str, 100, -10)
37	`6ae83e41ff11`	self.assertRaises(ValueError, int2str, 100, 10, 'abcde')
38	`a035ba7fb21b`
39	`a035ba7fb21b`	def test_i2s_negative_number(self):
40	`a035ba7fb21b`	"""testing int2str: error on negative number"""
41	`6ae83e41ff11`	self.assertRaises(ValueError, int2str, -100, 10)
42	`a035ba7fb21b`
43	`a035ba7fb21b`
44	`a035ba7fb21b`	class BaseconvS2i(unittest.TestCase):
45	`a035ba7fb21b`	"""tests for str2int()"""
46	`a035ba7fb21b`
47	`a035ba7fb21b`	def test_s2i(self):
48	`a035ba7fb21b`	"""testing str2int: expected values"""
49	`434a77c07a95`	self.assertEqual(str2int('DEADBEEF', 16), 3735928559)
50	`6ae83e41ff11`	self.assertEqual(str2int('zzz', 62), 238327)
51	`6ae83e41ff11`	self.assertEqual(str2int('zzzz', 62), 14776335)
52	`6ae83e41ff11`	self.assertEqual(str2int('1234', 7), 466)
53	`6ae83e41ff11`	self.assertEqual(str2int('100101000101001000', 2), 151880)
54	`434a77c07a95`	self.assertEqual(str2int('~123AFz@', 85), 2693233728041137)
55	`6ae83e41ff11`	self.assertEqual(str2int('8JSN', 40), 543543)
56	`6ae83e41ff11`	self.assertEqual(str2int('8ZtL', 61), 1949459)
57	`6ae83e41ff11`	self.assertEqual(str2int('100101101010100', 2), 19284)
58	`6ae83e41ff11`	self.assertEqual(str2int('baa', 10, 'abcdefghijklm'), 100)
59	`6ae83e41ff11`	self.assertEqual(str2int('foo', 4, 'rofl'), 37)
60	`a035ba7fb21b`
61	`a035ba7fb21b`	def test_s2i_nonint_base(self):
62	`a035ba7fb21b`	"""testing str2int: error on non-integer base"""
63	`6ae83e41ff11`	self.assertRaises(TypeError, str2int, '100', 0.1)
64	`a035ba7fb21b`
65	`a035ba7fb21b`	def test_s2i_bad_number(self):
66	`a035ba7fb21b`	"""testing str2int: error on invalid number"""
67	`a035ba7fb21b`	# raised by python
68	`6ae83e41ff11`	self.assertRaises(ValueError, str2int, '1234z', 8)
69	`a035ba7fb21b`	# raised by numconv.py
70	`6ae83e41ff11`	self.assertRaises(ValueError, str2int, '1234z', 37)
71	`a035ba7fb21b`
72	`a035ba7fb21b`	def test_s2i_invalid_radix(self):
73	`a035ba7fb21b`	"""testing str2int: error on invalid radix"""
74	`6ae83e41ff11`	self.assertRaises(ValueError, str2int, 'abcd', -10)
75	`a035ba7fb21b`
76	`a035ba7fb21b`
77	`bbef845a6732`	class BaseconvCmap(unittest.TestCase):
78	`a035ba7fb21b`	"""tests for getcmap()"""
79	`a035ba7fb21b`
80	`6ae83e41ff11`	def test_get_cmap(self):
81	`6ae83e41ff11`	"""testing get_cmap: expected values"""
82	`6ae83e41ff11`	self.assertEqual(NumConv(alphabet='0123456789').cached_map,
83	`a035ba7fb21b`	{'0': 0, '1': 1, '2': 2, '3': 3, '4': 4,
84	`a035ba7fb21b`	'5': 5, '6': 6, '7': 7, '8': 8, '9': 9})
85	`6ae83e41ff11`	self.assertEqual(NumConv(radix=4, alphabet='abcd').cached_map,
86	`a035ba7fb21b`	{'a': 0, 'b': 1, 'c': 2, 'd': 3})
87	`a035ba7fb21b`
88	`a035ba7fb21b`	def test_getcmap_dupechars(self):
89	`a035ba7fb21b`	"""testing getcmap: error on alphabet with duplicate chars"""
90	`6ae83e41ff11`	self.assertRaises(ValueError, NumConv, 6, 'abcdaf')
91	`bbef845a6732`
92	`a035ba7fb21b`
93	`a035ba7fb21b`	class BaseconvSanity(unittest.TestCase):
94	`a035ba7fb21b`	"""sanity checks"""
95	`a035ba7fb21b`
96	`a035ba7fb21b`	def test_sanity(self):
97	`a035ba7fb21b`	"""sanity check: testing a large interval and lots of radixes"""
98	`6ae83e41ff11`	for radix in range(2, len(BASE85)):
99	`6ae83e41ff11`	ncobj = NumConv(radix)
100	`434a77c07a95`	for num in list(range(1000)) + [10 ** x for x in range(5, 15)]:
101	`6ae83e41ff11`	self.assertEqual(num, ncobj.str2int(ncobj.int2str(num)))
102	`a035ba7fb21b`
103	`a035ba7fb21b`	if __name__ == "__main__":
104	`a035ba7fb21b`	unittest.main()

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