| 1 | n/a | import sys |
|---|
| 2 | n/a | |
|---|
| 3 | n/a | import unittest |
|---|
| 4 | n/a | from test import support |
|---|
| 5 | n/a | from test.test_grammar import (VALID_UNDERSCORE_LITERALS, |
|---|
| 6 | n/a | INVALID_UNDERSCORE_LITERALS) |
|---|
| 7 | n/a | |
|---|
| 8 | n/a | L = [ |
|---|
| 9 | n/a | ('0', 0), |
|---|
| 10 | n/a | ('1', 1), |
|---|
| 11 | n/a | ('9', 9), |
|---|
| 12 | n/a | ('10', 10), |
|---|
| 13 | n/a | ('99', 99), |
|---|
| 14 | n/a | ('100', 100), |
|---|
| 15 | n/a | ('314', 314), |
|---|
| 16 | n/a | (' 314', 314), |
|---|
| 17 | n/a | ('314 ', 314), |
|---|
| 18 | n/a | (' \t\t 314 \t\t ', 314), |
|---|
| 19 | n/a | (repr(sys.maxsize), sys.maxsize), |
|---|
| 20 | n/a | (' 1x', ValueError), |
|---|
| 21 | n/a | (' 1 ', 1), |
|---|
| 22 | n/a | (' 1\02 ', ValueError), |
|---|
| 23 | n/a | ('', ValueError), |
|---|
| 24 | n/a | (' ', ValueError), |
|---|
| 25 | n/a | (' \t\t ', ValueError), |
|---|
| 26 | n/a | ("\u0200", ValueError) |
|---|
| 27 | n/a | ] |
|---|
| 28 | n/a | |
|---|
| 29 | n/a | class IntSubclass(int): |
|---|
| 30 | n/a | pass |
|---|
| 31 | n/a | |
|---|
| 32 | n/a | class IntTestCases(unittest.TestCase): |
|---|
| 33 | n/a | |
|---|
| 34 | n/a | def test_basic(self): |
|---|
| 35 | n/a | self.assertEqual(int(314), 314) |
|---|
| 36 | n/a | self.assertEqual(int(3.14), 3) |
|---|
| 37 | n/a | # Check that conversion from float truncates towards zero |
|---|
| 38 | n/a | self.assertEqual(int(-3.14), -3) |
|---|
| 39 | n/a | self.assertEqual(int(3.9), 3) |
|---|
| 40 | n/a | self.assertEqual(int(-3.9), -3) |
|---|
| 41 | n/a | self.assertEqual(int(3.5), 3) |
|---|
| 42 | n/a | self.assertEqual(int(-3.5), -3) |
|---|
| 43 | n/a | self.assertEqual(int("-3"), -3) |
|---|
| 44 | n/a | self.assertEqual(int(" -3 "), -3) |
|---|
| 45 | n/a | self.assertEqual(int("\N{EM SPACE}-3\N{EN SPACE}"), -3) |
|---|
| 46 | n/a | # Different base: |
|---|
| 47 | n/a | self.assertEqual(int("10",16), 16) |
|---|
| 48 | n/a | # Test conversion from strings and various anomalies |
|---|
| 49 | n/a | for s, v in L: |
|---|
| 50 | n/a | for sign in "", "+", "-": |
|---|
| 51 | n/a | for prefix in "", " ", "\t", " \t\t ": |
|---|
| 52 | n/a | ss = prefix + sign + s |
|---|
| 53 | n/a | vv = v |
|---|
| 54 | n/a | if sign == "-" and v is not ValueError: |
|---|
| 55 | n/a | vv = -v |
|---|
| 56 | n/a | try: |
|---|
| 57 | n/a | self.assertEqual(int(ss), vv) |
|---|
| 58 | n/a | except ValueError: |
|---|
| 59 | n/a | pass |
|---|
| 60 | n/a | |
|---|
| 61 | n/a | s = repr(-1-sys.maxsize) |
|---|
| 62 | n/a | x = int(s) |
|---|
| 63 | n/a | self.assertEqual(x+1, -sys.maxsize) |
|---|
| 64 | n/a | self.assertIsInstance(x, int) |
|---|
| 65 | n/a | # should return int |
|---|
| 66 | n/a | self.assertEqual(int(s[1:]), sys.maxsize+1) |
|---|
| 67 | n/a | |
|---|
| 68 | n/a | # should return int |
|---|
| 69 | n/a | x = int(1e100) |
|---|
| 70 | n/a | self.assertIsInstance(x, int) |
|---|
| 71 | n/a | x = int(-1e100) |
|---|
| 72 | n/a | self.assertIsInstance(x, int) |
|---|
| 73 | n/a | |
|---|
| 74 | n/a | |
|---|
| 75 | n/a | # SF bug 434186: 0x80000000/2 != 0x80000000>>1. |
|---|
| 76 | n/a | # Worked by accident in Windows release build, but failed in debug build. |
|---|
| 77 | n/a | # Failed in all Linux builds. |
|---|
| 78 | n/a | x = -1-sys.maxsize |
|---|
| 79 | n/a | self.assertEqual(x >> 1, x//2) |
|---|
| 80 | n/a | |
|---|
| 81 | n/a | x = int('1' * 600) |
|---|
| 82 | n/a | self.assertIsInstance(x, int) |
|---|
| 83 | n/a | |
|---|
| 84 | n/a | |
|---|
| 85 | n/a | self.assertRaises(TypeError, int, 1, 12) |
|---|
| 86 | n/a | |
|---|
| 87 | n/a | self.assertEqual(int('0o123', 0), 83) |
|---|
| 88 | n/a | self.assertEqual(int('0x123', 16), 291) |
|---|
| 89 | n/a | |
|---|
| 90 | n/a | # Bug 1679: "0x" is not a valid hex literal |
|---|
| 91 | n/a | self.assertRaises(ValueError, int, "0x", 16) |
|---|
| 92 | n/a | self.assertRaises(ValueError, int, "0x", 0) |
|---|
| 93 | n/a | |
|---|
| 94 | n/a | self.assertRaises(ValueError, int, "0o", 8) |
|---|
| 95 | n/a | self.assertRaises(ValueError, int, "0o", 0) |
|---|
| 96 | n/a | |
|---|
| 97 | n/a | self.assertRaises(ValueError, int, "0b", 2) |
|---|
| 98 | n/a | self.assertRaises(ValueError, int, "0b", 0) |
|---|
| 99 | n/a | |
|---|
| 100 | n/a | # SF bug 1334662: int(string, base) wrong answers |
|---|
| 101 | n/a | # Various representations of 2**32 evaluated to 0 |
|---|
| 102 | n/a | # rather than 2**32 in previous versions |
|---|
| 103 | n/a | |
|---|
| 104 | n/a | self.assertEqual(int('100000000000000000000000000000000', 2), 4294967296) |
|---|
| 105 | n/a | self.assertEqual(int('102002022201221111211', 3), 4294967296) |
|---|
| 106 | n/a | self.assertEqual(int('10000000000000000', 4), 4294967296) |
|---|
| 107 | n/a | self.assertEqual(int('32244002423141', 5), 4294967296) |
|---|
| 108 | n/a | self.assertEqual(int('1550104015504', 6), 4294967296) |
|---|
| 109 | n/a | self.assertEqual(int('211301422354', 7), 4294967296) |
|---|
| 110 | n/a | self.assertEqual(int('40000000000', 8), 4294967296) |
|---|
| 111 | n/a | self.assertEqual(int('12068657454', 9), 4294967296) |
|---|
| 112 | n/a | self.assertEqual(int('4294967296', 10), 4294967296) |
|---|
| 113 | n/a | self.assertEqual(int('1904440554', 11), 4294967296) |
|---|
| 114 | n/a | self.assertEqual(int('9ba461594', 12), 4294967296) |
|---|
| 115 | n/a | self.assertEqual(int('535a79889', 13), 4294967296) |
|---|
| 116 | n/a | self.assertEqual(int('2ca5b7464', 14), 4294967296) |
|---|
| 117 | n/a | self.assertEqual(int('1a20dcd81', 15), 4294967296) |
|---|
| 118 | n/a | self.assertEqual(int('100000000', 16), 4294967296) |
|---|
| 119 | n/a | self.assertEqual(int('a7ffda91', 17), 4294967296) |
|---|
| 120 | n/a | self.assertEqual(int('704he7g4', 18), 4294967296) |
|---|
| 121 | n/a | self.assertEqual(int('4f5aff66', 19), 4294967296) |
|---|
| 122 | n/a | self.assertEqual(int('3723ai4g', 20), 4294967296) |
|---|
| 123 | n/a | self.assertEqual(int('281d55i4', 21), 4294967296) |
|---|
| 124 | n/a | self.assertEqual(int('1fj8b184', 22), 4294967296) |
|---|
| 125 | n/a | self.assertEqual(int('1606k7ic', 23), 4294967296) |
|---|
| 126 | n/a | self.assertEqual(int('mb994ag', 24), 4294967296) |
|---|
| 127 | n/a | self.assertEqual(int('hek2mgl', 25), 4294967296) |
|---|
| 128 | n/a | self.assertEqual(int('dnchbnm', 26), 4294967296) |
|---|
| 129 | n/a | self.assertEqual(int('b28jpdm', 27), 4294967296) |
|---|
| 130 | n/a | self.assertEqual(int('8pfgih4', 28), 4294967296) |
|---|
| 131 | n/a | self.assertEqual(int('76beigg', 29), 4294967296) |
|---|
| 132 | n/a | self.assertEqual(int('5qmcpqg', 30), 4294967296) |
|---|
| 133 | n/a | self.assertEqual(int('4q0jto4', 31), 4294967296) |
|---|
| 134 | n/a | self.assertEqual(int('4000000', 32), 4294967296) |
|---|
| 135 | n/a | self.assertEqual(int('3aokq94', 33), 4294967296) |
|---|
| 136 | n/a | self.assertEqual(int('2qhxjli', 34), 4294967296) |
|---|
| 137 | n/a | self.assertEqual(int('2br45qb', 35), 4294967296) |
|---|
| 138 | n/a | self.assertEqual(int('1z141z4', 36), 4294967296) |
|---|
| 139 | n/a | |
|---|
| 140 | n/a | # tests with base 0 |
|---|
| 141 | n/a | # this fails on 3.0, but in 2.x the old octal syntax is allowed |
|---|
| 142 | n/a | self.assertEqual(int(' 0o123 ', 0), 83) |
|---|
| 143 | n/a | self.assertEqual(int(' 0o123 ', 0), 83) |
|---|
| 144 | n/a | self.assertEqual(int('000', 0), 0) |
|---|
| 145 | n/a | self.assertEqual(int('0o123', 0), 83) |
|---|
| 146 | n/a | self.assertEqual(int('0x123', 0), 291) |
|---|
| 147 | n/a | self.assertEqual(int('0b100', 0), 4) |
|---|
| 148 | n/a | self.assertEqual(int(' 0O123 ', 0), 83) |
|---|
| 149 | n/a | self.assertEqual(int(' 0X123 ', 0), 291) |
|---|
| 150 | n/a | self.assertEqual(int(' 0B100 ', 0), 4) |
|---|
| 151 | n/a | |
|---|
| 152 | n/a | # without base still base 10 |
|---|
| 153 | n/a | self.assertEqual(int('0123'), 123) |
|---|
| 154 | n/a | self.assertEqual(int('0123', 10), 123) |
|---|
| 155 | n/a | |
|---|
| 156 | n/a | # tests with prefix and base != 0 |
|---|
| 157 | n/a | self.assertEqual(int('0x123', 16), 291) |
|---|
| 158 | n/a | self.assertEqual(int('0o123', 8), 83) |
|---|
| 159 | n/a | self.assertEqual(int('0b100', 2), 4) |
|---|
| 160 | n/a | self.assertEqual(int('0X123', 16), 291) |
|---|
| 161 | n/a | self.assertEqual(int('0O123', 8), 83) |
|---|
| 162 | n/a | self.assertEqual(int('0B100', 2), 4) |
|---|
| 163 | n/a | |
|---|
| 164 | n/a | # the code has special checks for the first character after the |
|---|
| 165 | n/a | # type prefix |
|---|
| 166 | n/a | self.assertRaises(ValueError, int, '0b2', 2) |
|---|
| 167 | n/a | self.assertRaises(ValueError, int, '0b02', 2) |
|---|
| 168 | n/a | self.assertRaises(ValueError, int, '0B2', 2) |
|---|
| 169 | n/a | self.assertRaises(ValueError, int, '0B02', 2) |
|---|
| 170 | n/a | self.assertRaises(ValueError, int, '0o8', 8) |
|---|
| 171 | n/a | self.assertRaises(ValueError, int, '0o08', 8) |
|---|
| 172 | n/a | self.assertRaises(ValueError, int, '0O8', 8) |
|---|
| 173 | n/a | self.assertRaises(ValueError, int, '0O08', 8) |
|---|
| 174 | n/a | self.assertRaises(ValueError, int, '0xg', 16) |
|---|
| 175 | n/a | self.assertRaises(ValueError, int, '0x0g', 16) |
|---|
| 176 | n/a | self.assertRaises(ValueError, int, '0Xg', 16) |
|---|
| 177 | n/a | self.assertRaises(ValueError, int, '0X0g', 16) |
|---|
| 178 | n/a | |
|---|
| 179 | n/a | # SF bug 1334662: int(string, base) wrong answers |
|---|
| 180 | n/a | # Checks for proper evaluation of 2**32 + 1 |
|---|
| 181 | n/a | self.assertEqual(int('100000000000000000000000000000001', 2), 4294967297) |
|---|
| 182 | n/a | self.assertEqual(int('102002022201221111212', 3), 4294967297) |
|---|
| 183 | n/a | self.assertEqual(int('10000000000000001', 4), 4294967297) |
|---|
| 184 | n/a | self.assertEqual(int('32244002423142', 5), 4294967297) |
|---|
| 185 | n/a | self.assertEqual(int('1550104015505', 6), 4294967297) |
|---|
| 186 | n/a | self.assertEqual(int('211301422355', 7), 4294967297) |
|---|
| 187 | n/a | self.assertEqual(int('40000000001', 8), 4294967297) |
|---|
| 188 | n/a | self.assertEqual(int('12068657455', 9), 4294967297) |
|---|
| 189 | n/a | self.assertEqual(int('4294967297', 10), 4294967297) |
|---|
| 190 | n/a | self.assertEqual(int('1904440555', 11), 4294967297) |
|---|
| 191 | n/a | self.assertEqual(int('9ba461595', 12), 4294967297) |
|---|
| 192 | n/a | self.assertEqual(int('535a7988a', 13), 4294967297) |
|---|
| 193 | n/a | self.assertEqual(int('2ca5b7465', 14), 4294967297) |
|---|
| 194 | n/a | self.assertEqual(int('1a20dcd82', 15), 4294967297) |
|---|
| 195 | n/a | self.assertEqual(int('100000001', 16), 4294967297) |
|---|
| 196 | n/a | self.assertEqual(int('a7ffda92', 17), 4294967297) |
|---|
| 197 | n/a | self.assertEqual(int('704he7g5', 18), 4294967297) |
|---|
| 198 | n/a | self.assertEqual(int('4f5aff67', 19), 4294967297) |
|---|
| 199 | n/a | self.assertEqual(int('3723ai4h', 20), 4294967297) |
|---|
| 200 | n/a | self.assertEqual(int('281d55i5', 21), 4294967297) |
|---|
| 201 | n/a | self.assertEqual(int('1fj8b185', 22), 4294967297) |
|---|
| 202 | n/a | self.assertEqual(int('1606k7id', 23), 4294967297) |
|---|
| 203 | n/a | self.assertEqual(int('mb994ah', 24), 4294967297) |
|---|
| 204 | n/a | self.assertEqual(int('hek2mgm', 25), 4294967297) |
|---|
| 205 | n/a | self.assertEqual(int('dnchbnn', 26), 4294967297) |
|---|
| 206 | n/a | self.assertEqual(int('b28jpdn', 27), 4294967297) |
|---|
| 207 | n/a | self.assertEqual(int('8pfgih5', 28), 4294967297) |
|---|
| 208 | n/a | self.assertEqual(int('76beigh', 29), 4294967297) |
|---|
| 209 | n/a | self.assertEqual(int('5qmcpqh', 30), 4294967297) |
|---|
| 210 | n/a | self.assertEqual(int('4q0jto5', 31), 4294967297) |
|---|
| 211 | n/a | self.assertEqual(int('4000001', 32), 4294967297) |
|---|
| 212 | n/a | self.assertEqual(int('3aokq95', 33), 4294967297) |
|---|
| 213 | n/a | self.assertEqual(int('2qhxjlj', 34), 4294967297) |
|---|
| 214 | n/a | self.assertEqual(int('2br45qc', 35), 4294967297) |
|---|
| 215 | n/a | self.assertEqual(int('1z141z5', 36), 4294967297) |
|---|
| 216 | n/a | |
|---|
| 217 | n/a | def test_underscores(self): |
|---|
| 218 | n/a | for lit in VALID_UNDERSCORE_LITERALS: |
|---|
| 219 | n/a | if any(ch in lit for ch in '.eEjJ'): |
|---|
| 220 | n/a | continue |
|---|
| 221 | n/a | self.assertEqual(int(lit, 0), eval(lit)) |
|---|
| 222 | n/a | self.assertEqual(int(lit, 0), int(lit.replace('_', ''), 0)) |
|---|
| 223 | n/a | for lit in INVALID_UNDERSCORE_LITERALS: |
|---|
| 224 | n/a | if any(ch in lit for ch in '.eEjJ'): |
|---|
| 225 | n/a | continue |
|---|
| 226 | n/a | self.assertRaises(ValueError, int, lit, 0) |
|---|
| 227 | n/a | # Additional test cases with bases != 0, only for the constructor: |
|---|
| 228 | n/a | self.assertEqual(int("1_00", 3), 9) |
|---|
| 229 | n/a | self.assertEqual(int("0_100"), 100) # not valid as a literal! |
|---|
| 230 | n/a | self.assertEqual(int(b"1_00"), 100) # byte underscore |
|---|
| 231 | n/a | self.assertRaises(ValueError, int, "_100") |
|---|
| 232 | n/a | self.assertRaises(ValueError, int, "+_100") |
|---|
| 233 | n/a | self.assertRaises(ValueError, int, "1__00") |
|---|
| 234 | n/a | self.assertRaises(ValueError, int, "100_") |
|---|
| 235 | n/a | |
|---|
| 236 | n/a | @support.cpython_only |
|---|
| 237 | n/a | def test_small_ints(self): |
|---|
| 238 | n/a | # Bug #3236: Return small longs from PyLong_FromString |
|---|
| 239 | n/a | self.assertIs(int('10'), 10) |
|---|
| 240 | n/a | self.assertIs(int('-1'), -1) |
|---|
| 241 | n/a | self.assertIs(int(b'10'), 10) |
|---|
| 242 | n/a | self.assertIs(int(b'-1'), -1) |
|---|
| 243 | n/a | |
|---|
| 244 | n/a | def test_no_args(self): |
|---|
| 245 | n/a | self.assertEqual(int(), 0) |
|---|
| 246 | n/a | |
|---|
| 247 | n/a | def test_keyword_args(self): |
|---|
| 248 | n/a | # Test invoking int() using keyword arguments. |
|---|
| 249 | n/a | self.assertEqual(int(x=1.2), 1) |
|---|
| 250 | n/a | self.assertEqual(int('100', base=2), 4) |
|---|
| 251 | n/a | self.assertEqual(int(x='100', base=2), 4) |
|---|
| 252 | n/a | self.assertRaises(TypeError, int, base=10) |
|---|
| 253 | n/a | self.assertRaises(TypeError, int, base=0) |
|---|
| 254 | n/a | |
|---|
| 255 | n/a | def test_int_base_limits(self): |
|---|
| 256 | n/a | """Testing the supported limits of the int() base parameter.""" |
|---|
| 257 | n/a | self.assertEqual(int('0', 5), 0) |
|---|
| 258 | n/a | with self.assertRaises(ValueError): |
|---|
| 259 | n/a | int('0', 1) |
|---|
| 260 | n/a | with self.assertRaises(ValueError): |
|---|
| 261 | n/a | int('0', 37) |
|---|
| 262 | n/a | with self.assertRaises(ValueError): |
|---|
| 263 | n/a | int('0', -909) # An old magic value base from Python 2. |
|---|
| 264 | n/a | with self.assertRaises(ValueError): |
|---|
| 265 | n/a | int('0', base=0-(2**234)) |
|---|
| 266 | n/a | with self.assertRaises(ValueError): |
|---|
| 267 | n/a | int('0', base=2**234) |
|---|
| 268 | n/a | # Bases 2 through 36 are supported. |
|---|
| 269 | n/a | for base in range(2,37): |
|---|
| 270 | n/a | self.assertEqual(int('0', base=base), 0) |
|---|
| 271 | n/a | |
|---|
| 272 | n/a | def test_int_base_bad_types(self): |
|---|
| 273 | n/a | """Not integer types are not valid bases; issue16772.""" |
|---|
| 274 | n/a | with self.assertRaises(TypeError): |
|---|
| 275 | n/a | int('0', 5.5) |
|---|
| 276 | n/a | with self.assertRaises(TypeError): |
|---|
| 277 | n/a | int('0', 5.0) |
|---|
| 278 | n/a | |
|---|
| 279 | n/a | def test_int_base_indexable(self): |
|---|
| 280 | n/a | class MyIndexable(object): |
|---|
| 281 | n/a | def __init__(self, value): |
|---|
| 282 | n/a | self.value = value |
|---|
| 283 | n/a | def __index__(self): |
|---|
| 284 | n/a | return self.value |
|---|
| 285 | n/a | |
|---|
| 286 | n/a | # Check out of range bases. |
|---|
| 287 | n/a | for base in 2**100, -2**100, 1, 37: |
|---|
| 288 | n/a | with self.assertRaises(ValueError): |
|---|
| 289 | n/a | int('43', base) |
|---|
| 290 | n/a | |
|---|
| 291 | n/a | # Check in-range bases. |
|---|
| 292 | n/a | self.assertEqual(int('101', base=MyIndexable(2)), 5) |
|---|
| 293 | n/a | self.assertEqual(int('101', base=MyIndexable(10)), 101) |
|---|
| 294 | n/a | self.assertEqual(int('101', base=MyIndexable(36)), 1 + 36**2) |
|---|
| 295 | n/a | |
|---|
| 296 | n/a | def test_non_numeric_input_types(self): |
|---|
| 297 | n/a | # Test possible non-numeric types for the argument x, including |
|---|
| 298 | n/a | # subclasses of the explicitly documented accepted types. |
|---|
| 299 | n/a | class CustomStr(str): pass |
|---|
| 300 | n/a | class CustomBytes(bytes): pass |
|---|
| 301 | n/a | class CustomByteArray(bytearray): pass |
|---|
| 302 | n/a | |
|---|
| 303 | n/a | factories = [ |
|---|
| 304 | n/a | bytes, |
|---|
| 305 | n/a | bytearray, |
|---|
| 306 | n/a | lambda b: CustomStr(b.decode()), |
|---|
| 307 | n/a | CustomBytes, |
|---|
| 308 | n/a | CustomByteArray, |
|---|
| 309 | n/a | memoryview, |
|---|
| 310 | n/a | ] |
|---|
| 311 | n/a | try: |
|---|
| 312 | n/a | from array import array |
|---|
| 313 | n/a | except ImportError: |
|---|
| 314 | n/a | pass |
|---|
| 315 | n/a | else: |
|---|
| 316 | n/a | factories.append(lambda b: array('B', b)) |
|---|
| 317 | n/a | |
|---|
| 318 | n/a | for f in factories: |
|---|
| 319 | n/a | x = f(b'100') |
|---|
| 320 | n/a | with self.subTest(type(x)): |
|---|
| 321 | n/a | self.assertEqual(int(x), 100) |
|---|
| 322 | n/a | if isinstance(x, (str, bytes, bytearray)): |
|---|
| 323 | n/a | self.assertEqual(int(x, 2), 4) |
|---|
| 324 | n/a | else: |
|---|
| 325 | n/a | msg = "can't convert non-string" |
|---|
| 326 | n/a | with self.assertRaisesRegex(TypeError, msg): |
|---|
| 327 | n/a | int(x, 2) |
|---|
| 328 | n/a | with self.assertRaisesRegex(ValueError, 'invalid literal'): |
|---|
| 329 | n/a | int(f(b'A' * 0x10)) |
|---|
| 330 | n/a | |
|---|
| 331 | n/a | def test_int_memoryview(self): |
|---|
| 332 | n/a | self.assertEqual(int(memoryview(b'123')[1:3]), 23) |
|---|
| 333 | n/a | self.assertEqual(int(memoryview(b'123\x00')[1:3]), 23) |
|---|
| 334 | n/a | self.assertEqual(int(memoryview(b'123 ')[1:3]), 23) |
|---|
| 335 | n/a | self.assertEqual(int(memoryview(b'123A')[1:3]), 23) |
|---|
| 336 | n/a | self.assertEqual(int(memoryview(b'1234')[1:3]), 23) |
|---|
| 337 | n/a | |
|---|
| 338 | n/a | def test_string_float(self): |
|---|
| 339 | n/a | self.assertRaises(ValueError, int, '1.2') |
|---|
| 340 | n/a | |
|---|
| 341 | n/a | def test_intconversion(self): |
|---|
| 342 | n/a | # Test __int__() |
|---|
| 343 | n/a | class ClassicMissingMethods: |
|---|
| 344 | n/a | pass |
|---|
| 345 | n/a | self.assertRaises(TypeError, int, ClassicMissingMethods()) |
|---|
| 346 | n/a | |
|---|
| 347 | n/a | class MissingMethods(object): |
|---|
| 348 | n/a | pass |
|---|
| 349 | n/a | self.assertRaises(TypeError, int, MissingMethods()) |
|---|
| 350 | n/a | |
|---|
| 351 | n/a | class Foo0: |
|---|
| 352 | n/a | def __int__(self): |
|---|
| 353 | n/a | return 42 |
|---|
| 354 | n/a | |
|---|
| 355 | n/a | self.assertEqual(int(Foo0()), 42) |
|---|
| 356 | n/a | |
|---|
| 357 | n/a | class Classic: |
|---|
| 358 | n/a | pass |
|---|
| 359 | n/a | for base in (object, Classic): |
|---|
| 360 | n/a | class IntOverridesTrunc(base): |
|---|
| 361 | n/a | def __int__(self): |
|---|
| 362 | n/a | return 42 |
|---|
| 363 | n/a | def __trunc__(self): |
|---|
| 364 | n/a | return -12 |
|---|
| 365 | n/a | self.assertEqual(int(IntOverridesTrunc()), 42) |
|---|
| 366 | n/a | |
|---|
| 367 | n/a | class JustTrunc(base): |
|---|
| 368 | n/a | def __trunc__(self): |
|---|
| 369 | n/a | return 42 |
|---|
| 370 | n/a | self.assertEqual(int(JustTrunc()), 42) |
|---|
| 371 | n/a | |
|---|
| 372 | n/a | class ExceptionalTrunc(base): |
|---|
| 373 | n/a | def __trunc__(self): |
|---|
| 374 | n/a | 1 / 0 |
|---|
| 375 | n/a | with self.assertRaises(ZeroDivisionError): |
|---|
| 376 | n/a | int(ExceptionalTrunc()) |
|---|
| 377 | n/a | |
|---|
| 378 | n/a | for trunc_result_base in (object, Classic): |
|---|
| 379 | n/a | class Integral(trunc_result_base): |
|---|
| 380 | n/a | def __int__(self): |
|---|
| 381 | n/a | return 42 |
|---|
| 382 | n/a | |
|---|
| 383 | n/a | class TruncReturnsNonInt(base): |
|---|
| 384 | n/a | def __trunc__(self): |
|---|
| 385 | n/a | return Integral() |
|---|
| 386 | n/a | self.assertEqual(int(TruncReturnsNonInt()), 42) |
|---|
| 387 | n/a | |
|---|
| 388 | n/a | class NonIntegral(trunc_result_base): |
|---|
| 389 | n/a | def __trunc__(self): |
|---|
| 390 | n/a | # Check that we avoid infinite recursion. |
|---|
| 391 | n/a | return NonIntegral() |
|---|
| 392 | n/a | |
|---|
| 393 | n/a | class TruncReturnsNonIntegral(base): |
|---|
| 394 | n/a | def __trunc__(self): |
|---|
| 395 | n/a | return NonIntegral() |
|---|
| 396 | n/a | try: |
|---|
| 397 | n/a | int(TruncReturnsNonIntegral()) |
|---|
| 398 | n/a | except TypeError as e: |
|---|
| 399 | n/a | self.assertEqual(str(e), |
|---|
| 400 | n/a | "__trunc__ returned non-Integral" |
|---|
| 401 | n/a | " (type NonIntegral)") |
|---|
| 402 | n/a | else: |
|---|
| 403 | n/a | self.fail("Failed to raise TypeError with %s" % |
|---|
| 404 | n/a | ((base, trunc_result_base),)) |
|---|
| 405 | n/a | |
|---|
| 406 | n/a | # Regression test for bugs.python.org/issue16060. |
|---|
| 407 | n/a | class BadInt(trunc_result_base): |
|---|
| 408 | n/a | def __int__(self): |
|---|
| 409 | n/a | return 42.0 |
|---|
| 410 | n/a | |
|---|
| 411 | n/a | class TruncReturnsBadInt(base): |
|---|
| 412 | n/a | def __trunc__(self): |
|---|
| 413 | n/a | return BadInt() |
|---|
| 414 | n/a | |
|---|
| 415 | n/a | with self.assertRaises(TypeError): |
|---|
| 416 | n/a | int(TruncReturnsBadInt()) |
|---|
| 417 | n/a | |
|---|
| 418 | n/a | def test_int_subclass_with_int(self): |
|---|
| 419 | n/a | class MyInt(int): |
|---|
| 420 | n/a | def __int__(self): |
|---|
| 421 | n/a | return 42 |
|---|
| 422 | n/a | |
|---|
| 423 | n/a | class BadInt(int): |
|---|
| 424 | n/a | def __int__(self): |
|---|
| 425 | n/a | return 42.0 |
|---|
| 426 | n/a | |
|---|
| 427 | n/a | my_int = MyInt(7) |
|---|
| 428 | n/a | self.assertEqual(my_int, 7) |
|---|
| 429 | n/a | self.assertEqual(int(my_int), 42) |
|---|
| 430 | n/a | |
|---|
| 431 | n/a | self.assertRaises(TypeError, int, BadInt()) |
|---|
| 432 | n/a | |
|---|
| 433 | n/a | def test_int_returns_int_subclass(self): |
|---|
| 434 | n/a | class BadInt: |
|---|
| 435 | n/a | def __int__(self): |
|---|
| 436 | n/a | return True |
|---|
| 437 | n/a | |
|---|
| 438 | n/a | class BadInt2(int): |
|---|
| 439 | n/a | def __int__(self): |
|---|
| 440 | n/a | return True |
|---|
| 441 | n/a | |
|---|
| 442 | n/a | class TruncReturnsBadInt: |
|---|
| 443 | n/a | def __trunc__(self): |
|---|
| 444 | n/a | return BadInt() |
|---|
| 445 | n/a | |
|---|
| 446 | n/a | class TruncReturnsIntSubclass: |
|---|
| 447 | n/a | def __trunc__(self): |
|---|
| 448 | n/a | return True |
|---|
| 449 | n/a | |
|---|
| 450 | n/a | bad_int = BadInt() |
|---|
| 451 | n/a | with self.assertWarns(DeprecationWarning): |
|---|
| 452 | n/a | n = int(bad_int) |
|---|
| 453 | n/a | self.assertEqual(n, 1) |
|---|
| 454 | n/a | self.assertIs(type(n), int) |
|---|
| 455 | n/a | |
|---|
| 456 | n/a | bad_int = BadInt2() |
|---|
| 457 | n/a | with self.assertWarns(DeprecationWarning): |
|---|
| 458 | n/a | n = int(bad_int) |
|---|
| 459 | n/a | self.assertEqual(n, 1) |
|---|
| 460 | n/a | self.assertIs(type(n), int) |
|---|
| 461 | n/a | |
|---|
| 462 | n/a | bad_int = TruncReturnsBadInt() |
|---|
| 463 | n/a | with self.assertWarns(DeprecationWarning): |
|---|
| 464 | n/a | n = int(bad_int) |
|---|
| 465 | n/a | self.assertEqual(n, 1) |
|---|
| 466 | n/a | self.assertIs(type(n), int) |
|---|
| 467 | n/a | |
|---|
| 468 | n/a | good_int = TruncReturnsIntSubclass() |
|---|
| 469 | n/a | n = int(good_int) |
|---|
| 470 | n/a | self.assertEqual(n, 1) |
|---|
| 471 | n/a | self.assertIs(type(n), int) |
|---|
| 472 | n/a | n = IntSubclass(good_int) |
|---|
| 473 | n/a | self.assertEqual(n, 1) |
|---|
| 474 | n/a | self.assertIs(type(n), IntSubclass) |
|---|
| 475 | n/a | |
|---|
| 476 | n/a | def test_error_message(self): |
|---|
| 477 | n/a | def check(s, base=None): |
|---|
| 478 | n/a | with self.assertRaises(ValueError, |
|---|
| 479 | n/a | msg="int(%r, %r)" % (s, base)) as cm: |
|---|
| 480 | n/a | if base is None: |
|---|
| 481 | n/a | int(s) |
|---|
| 482 | n/a | else: |
|---|
| 483 | n/a | int(s, base) |
|---|
| 484 | n/a | self.assertEqual(cm.exception.args[0], |
|---|
| 485 | n/a | "invalid literal for int() with base %d: %r" % |
|---|
| 486 | n/a | (10 if base is None else base, s)) |
|---|
| 487 | n/a | |
|---|
| 488 | n/a | check('\xbd') |
|---|
| 489 | n/a | check('123\xbd') |
|---|
| 490 | n/a | check(' 123 456 ') |
|---|
| 491 | n/a | |
|---|
| 492 | n/a | check('123\x00') |
|---|
| 493 | n/a | # SF bug 1545497: embedded NULs were not detected with explicit base |
|---|
| 494 | n/a | check('123\x00', 10) |
|---|
| 495 | n/a | check('123\x00 245', 20) |
|---|
| 496 | n/a | check('123\x00 245', 16) |
|---|
| 497 | n/a | check('123\x00245', 20) |
|---|
| 498 | n/a | check('123\x00245', 16) |
|---|
| 499 | n/a | # byte string with embedded NUL |
|---|
| 500 | n/a | check(b'123\x00') |
|---|
| 501 | n/a | check(b'123\x00', 10) |
|---|
| 502 | n/a | # non-UTF-8 byte string |
|---|
| 503 | n/a | check(b'123\xbd') |
|---|
| 504 | n/a | check(b'123\xbd', 10) |
|---|
| 505 | n/a | # lone surrogate in Unicode string |
|---|
| 506 | n/a | check('123\ud800') |
|---|
| 507 | n/a | check('123\ud800', 10) |
|---|
| 508 | n/a | |
|---|
| 509 | n/a | if __name__ == "__main__": |
|---|
| 510 | n/a | unittest.main() |
|---|
