Antoine Pitrou | 9961405 | 2014-05-23 11:46:03 +0200 | [diff] [blame] | 1 | import math |
Raymond Hettinger | 8a99b50 | 2003-06-23 13:36:57 +0000 | [diff] [blame] | 2 | import unittest |
Raymond Hettinger | 8a99b50 | 2003-06-23 13:36:57 +0000 | [diff] [blame] | 3 | import sys |
Martin v. Löwis | 618dc5e | 2008-03-30 20:03:44 +0000 | [diff] [blame] | 4 | import _ast |
Benjamin Peterson | 43b0686 | 2011-05-27 09:08:01 -0500 | [diff] [blame] | 5 | import types |
Benjamin Peterson | ee8712c | 2008-05-20 21:35:26 +0000 | [diff] [blame] | 6 | from test import support |
Peter Schneider-Kamp | fdee0f0 | 2000-07-25 22:15:45 +0000 | [diff] [blame] | 7 | |
Raymond Hettinger | 8a99b50 | 2003-06-23 13:36:57 +0000 | [diff] [blame] | 8 | class TestSpecifics(unittest.TestCase): |
Jeremy Hylton | 778e265 | 2001-11-09 19:50:08 +0000 | [diff] [blame] | 9 | |
Meador Inge | fa21bf0 | 2012-01-19 01:08:41 -0600 | [diff] [blame] | 10 | def compile_single(self, source): |
| 11 | compile(source, "<single>", "single") |
| 12 | |
| 13 | def assertInvalidSingle(self, source): |
| 14 | self.assertRaises(SyntaxError, self.compile_single, source) |
| 15 | |
Benjamin Peterson | aeaa592 | 2009-11-13 00:17:59 +0000 | [diff] [blame] | 16 | def test_no_ending_newline(self): |
| 17 | compile("hi", "<test>", "exec") |
| 18 | compile("hi\r", "<test>", "exec") |
| 19 | |
| 20 | def test_empty(self): |
| 21 | compile("", "<test>", "exec") |
| 22 | |
| 23 | def test_other_newlines(self): |
| 24 | compile("\r\n", "<test>", "exec") |
| 25 | compile("\r", "<test>", "exec") |
| 26 | compile("hi\r\nstuff\r\ndef f():\n pass\r", "<test>", "exec") |
| 27 | compile("this_is\rreally_old_mac\rdef f():\n pass", "<test>", "exec") |
| 28 | |
Raymond Hettinger | 8a99b50 | 2003-06-23 13:36:57 +0000 | [diff] [blame] | 29 | def test_debug_assignment(self): |
| 30 | # catch assignments to __debug__ |
| 31 | self.assertRaises(SyntaxError, compile, '__debug__ = 1', '?', 'single') |
Georg Brandl | 1a3284e | 2007-12-02 09:40:06 +0000 | [diff] [blame] | 32 | import builtins |
| 33 | prev = builtins.__debug__ |
| 34 | setattr(builtins, '__debug__', 'sure') |
| 35 | setattr(builtins, '__debug__', prev) |
Jeremy Hylton | 778e265 | 2001-11-09 19:50:08 +0000 | [diff] [blame] | 36 | |
Raymond Hettinger | 8a99b50 | 2003-06-23 13:36:57 +0000 | [diff] [blame] | 37 | def test_argument_handling(self): |
| 38 | # detect duplicate positional and keyword arguments |
| 39 | self.assertRaises(SyntaxError, eval, 'lambda a,a:0') |
| 40 | self.assertRaises(SyntaxError, eval, 'lambda a,a=1:0') |
| 41 | self.assertRaises(SyntaxError, eval, 'lambda a=1,a=1:0') |
Benjamin Peterson | ec19d95 | 2008-06-30 15:01:21 +0000 | [diff] [blame] | 42 | self.assertRaises(SyntaxError, exec, 'def f(a, a): pass') |
| 43 | self.assertRaises(SyntaxError, exec, 'def f(a = 0, a = 1): pass') |
| 44 | self.assertRaises(SyntaxError, exec, 'def f(a): global a; a = 1') |
Jeremy Hylton | 778e265 | 2001-11-09 19:50:08 +0000 | [diff] [blame] | 45 | |
Raymond Hettinger | 8a99b50 | 2003-06-23 13:36:57 +0000 | [diff] [blame] | 46 | def test_syntax_error(self): |
| 47 | self.assertRaises(SyntaxError, compile, "1+*3", "filename", "exec") |
Peter Schneider-Kamp | fdee0f0 | 2000-07-25 22:15:45 +0000 | [diff] [blame] | 48 | |
Guido van Rossum | cd16bf6 | 2007-06-13 18:07:49 +0000 | [diff] [blame] | 49 | def test_none_keyword_arg(self): |
| 50 | self.assertRaises(SyntaxError, compile, "f(None=1)", "<string>", "exec") |
| 51 | |
Raymond Hettinger | 8a99b50 | 2003-06-23 13:36:57 +0000 | [diff] [blame] | 52 | def test_duplicate_global_local(self): |
Benjamin Peterson | ec19d95 | 2008-06-30 15:01:21 +0000 | [diff] [blame] | 53 | self.assertRaises(SyntaxError, exec, 'def f(a): global a; a = 1') |
Peter Schneider-Kamp | fdee0f0 | 2000-07-25 22:15:45 +0000 | [diff] [blame] | 54 | |
Raymond Hettinger | 66bd233 | 2004-08-02 08:30:07 +0000 | [diff] [blame] | 55 | def test_exec_with_general_mapping_for_locals(self): |
| 56 | |
| 57 | class M: |
| 58 | "Test mapping interface versus possible calls from eval()." |
| 59 | def __getitem__(self, key): |
| 60 | if key == 'a': |
| 61 | return 12 |
| 62 | raise KeyError |
| 63 | def __setitem__(self, key, value): |
| 64 | self.results = (key, value) |
Guido van Rossum | 63eecc7 | 2007-02-22 23:55:25 +0000 | [diff] [blame] | 65 | def keys(self): |
| 66 | return list('xyz') |
Raymond Hettinger | 66bd233 | 2004-08-02 08:30:07 +0000 | [diff] [blame] | 67 | |
| 68 | m = M() |
| 69 | g = globals() |
Georg Brandl | 7cae87c | 2006-09-06 06:51:57 +0000 | [diff] [blame] | 70 | exec('z = a', g, m) |
Raymond Hettinger | 66bd233 | 2004-08-02 08:30:07 +0000 | [diff] [blame] | 71 | self.assertEqual(m.results, ('z', 12)) |
| 72 | try: |
Georg Brandl | 7cae87c | 2006-09-06 06:51:57 +0000 | [diff] [blame] | 73 | exec('z = b', g, m) |
Raymond Hettinger | 66bd233 | 2004-08-02 08:30:07 +0000 | [diff] [blame] | 74 | except NameError: |
| 75 | pass |
| 76 | else: |
| 77 | self.fail('Did not detect a KeyError') |
Georg Brandl | 7cae87c | 2006-09-06 06:51:57 +0000 | [diff] [blame] | 78 | exec('z = dir()', g, m) |
Raymond Hettinger | 66bd233 | 2004-08-02 08:30:07 +0000 | [diff] [blame] | 79 | self.assertEqual(m.results, ('z', list('xyz'))) |
Georg Brandl | 7cae87c | 2006-09-06 06:51:57 +0000 | [diff] [blame] | 80 | exec('z = globals()', g, m) |
Raymond Hettinger | 66bd233 | 2004-08-02 08:30:07 +0000 | [diff] [blame] | 81 | self.assertEqual(m.results, ('z', g)) |
Georg Brandl | 7cae87c | 2006-09-06 06:51:57 +0000 | [diff] [blame] | 82 | exec('z = locals()', g, m) |
Raymond Hettinger | 66bd233 | 2004-08-02 08:30:07 +0000 | [diff] [blame] | 83 | self.assertEqual(m.results, ('z', m)) |
Benjamin Peterson | ec19d95 | 2008-06-30 15:01:21 +0000 | [diff] [blame] | 84 | self.assertRaises(TypeError, exec, 'z = b', m) |
Raymond Hettinger | 66bd233 | 2004-08-02 08:30:07 +0000 | [diff] [blame] | 85 | |
| 86 | class A: |
| 87 | "Non-mapping" |
| 88 | pass |
| 89 | m = A() |
Benjamin Peterson | ec19d95 | 2008-06-30 15:01:21 +0000 | [diff] [blame] | 90 | self.assertRaises(TypeError, exec, 'z = a', g, m) |
Raymond Hettinger | 66bd233 | 2004-08-02 08:30:07 +0000 | [diff] [blame] | 91 | |
| 92 | # Verify that dict subclasses work as well |
| 93 | class D(dict): |
| 94 | def __getitem__(self, key): |
| 95 | if key == 'a': |
| 96 | return 12 |
| 97 | return dict.__getitem__(self, key) |
| 98 | d = D() |
Georg Brandl | 7cae87c | 2006-09-06 06:51:57 +0000 | [diff] [blame] | 99 | exec('z = a', g, d) |
Raymond Hettinger | 66bd233 | 2004-08-02 08:30:07 +0000 | [diff] [blame] | 100 | self.assertEqual(d['z'], 12) |
| 101 | |
Neal Norwitz | 6ab080c | 2005-10-24 00:08:10 +0000 | [diff] [blame] | 102 | def test_extended_arg(self): |
| 103 | longexpr = 'x = x or ' + '-x' * 2500 |
Georg Brandl | 7cae87c | 2006-09-06 06:51:57 +0000 | [diff] [blame] | 104 | g = {} |
Neal Norwitz | 6ab080c | 2005-10-24 00:08:10 +0000 | [diff] [blame] | 105 | code = ''' |
| 106 | def f(x): |
| 107 | %s |
| 108 | %s |
| 109 | %s |
| 110 | %s |
| 111 | %s |
| 112 | %s |
| 113 | %s |
| 114 | %s |
| 115 | %s |
| 116 | %s |
| 117 | # the expressions above have no effect, x == argument |
| 118 | while x: |
| 119 | x -= 1 |
| 120 | # EXTENDED_ARG/JUMP_ABSOLUTE here |
| 121 | return x |
| 122 | ''' % ((longexpr,)*10) |
Georg Brandl | 7cae87c | 2006-09-06 06:51:57 +0000 | [diff] [blame] | 123 | exec(code, g) |
| 124 | self.assertEqual(g['f'](5), 0) |
Neal Norwitz | 6ab080c | 2005-10-24 00:08:10 +0000 | [diff] [blame] | 125 | |
Raymond Hettinger | 8a99b50 | 2003-06-23 13:36:57 +0000 | [diff] [blame] | 126 | def test_argument_order(self): |
Benjamin Peterson | ec19d95 | 2008-06-30 15:01:21 +0000 | [diff] [blame] | 127 | self.assertRaises(SyntaxError, exec, 'def f(a=1, b): pass') |
Jeremy Hylton | 121b6eb | 2001-02-19 23:53:42 +0000 | [diff] [blame] | 128 | |
Raymond Hettinger | 8a99b50 | 2003-06-23 13:36:57 +0000 | [diff] [blame] | 129 | def test_float_literals(self): |
| 130 | # testing bad float literals |
| 131 | self.assertRaises(SyntaxError, eval, "2e") |
| 132 | self.assertRaises(SyntaxError, eval, "2.0e+") |
| 133 | self.assertRaises(SyntaxError, eval, "1e-") |
| 134 | self.assertRaises(SyntaxError, eval, "3-4e/21") |
Jeremy Hylton | 121b6eb | 2001-02-19 23:53:42 +0000 | [diff] [blame] | 135 | |
Raymond Hettinger | 8a99b50 | 2003-06-23 13:36:57 +0000 | [diff] [blame] | 136 | def test_indentation(self): |
| 137 | # testing compile() of indented block w/o trailing newline" |
| 138 | s = """ |
Guido van Rossum | 4b499dd3 | 2003-02-13 22:07:59 +0000 | [diff] [blame] | 139 | if 1: |
| 140 | if 2: |
| 141 | pass""" |
Raymond Hettinger | 8a99b50 | 2003-06-23 13:36:57 +0000 | [diff] [blame] | 142 | compile(s, "<string>", "exec") |
| 143 | |
Thomas Wouters | 0e3f591 | 2006-08-11 14:57:12 +0000 | [diff] [blame] | 144 | # This test is probably specific to CPython and may not generalize |
| 145 | # to other implementations. We are trying to ensure that when |
| 146 | # the first line of code starts after 256, correct line numbers |
| 147 | # in tracebacks are still produced. |
| 148 | def test_leading_newlines(self): |
| 149 | s256 = "".join(["\n"] * 256 + ["spam"]) |
| 150 | co = compile(s256, 'fn', 'exec') |
| 151 | self.assertEqual(co.co_firstlineno, 257) |
Guido van Rossum | 98297ee | 2007-11-06 21:34:58 +0000 | [diff] [blame] | 152 | self.assertEqual(co.co_lnotab, bytes()) |
Thomas Wouters | 0e3f591 | 2006-08-11 14:57:12 +0000 | [diff] [blame] | 153 | |
Raymond Hettinger | 8a99b50 | 2003-06-23 13:36:57 +0000 | [diff] [blame] | 154 | def test_literals_with_leading_zeroes(self): |
| 155 | for arg in ["077787", "0xj", "0x.", "0e", "090000000000000", |
Guido van Rossum | cd16bf6 | 2007-06-13 18:07:49 +0000 | [diff] [blame] | 156 | "080000000000000", "000000000000009", "000000000000008", |
| 157 | "0b42", "0BADCAFE", "0o123456789", "0b1.1", "0o4.2", |
| 158 | "0b101j2", "0o153j2", "0b100e1", "0o777e1", "0777", |
| 159 | "000777", "000000000000007"]: |
Raymond Hettinger | 8a99b50 | 2003-06-23 13:36:57 +0000 | [diff] [blame] | 160 | self.assertRaises(SyntaxError, eval, arg) |
| 161 | |
Raymond Hettinger | 8a99b50 | 2003-06-23 13:36:57 +0000 | [diff] [blame] | 162 | self.assertEqual(eval("0xff"), 255) |
Raymond Hettinger | 8a99b50 | 2003-06-23 13:36:57 +0000 | [diff] [blame] | 163 | self.assertEqual(eval("0777."), 777) |
| 164 | self.assertEqual(eval("0777.0"), 777) |
| 165 | self.assertEqual(eval("000000000000000000000000000000000000000000000000000777e0"), 777) |
| 166 | self.assertEqual(eval("0777e1"), 7770) |
| 167 | self.assertEqual(eval("0e0"), 0) |
Guido van Rossum | cd16bf6 | 2007-06-13 18:07:49 +0000 | [diff] [blame] | 168 | self.assertEqual(eval("0000e-012"), 0) |
Raymond Hettinger | 8a99b50 | 2003-06-23 13:36:57 +0000 | [diff] [blame] | 169 | self.assertEqual(eval("09.5"), 9.5) |
| 170 | self.assertEqual(eval("0777j"), 777j) |
Guido van Rossum | cd16bf6 | 2007-06-13 18:07:49 +0000 | [diff] [blame] | 171 | self.assertEqual(eval("000"), 0) |
Raymond Hettinger | 8a99b50 | 2003-06-23 13:36:57 +0000 | [diff] [blame] | 172 | self.assertEqual(eval("00j"), 0j) |
| 173 | self.assertEqual(eval("00.0"), 0) |
| 174 | self.assertEqual(eval("0e3"), 0) |
| 175 | self.assertEqual(eval("090000000000000."), 90000000000000.) |
| 176 | self.assertEqual(eval("090000000000000.0000000000000000000000"), 90000000000000.) |
| 177 | self.assertEqual(eval("090000000000000e0"), 90000000000000.) |
| 178 | self.assertEqual(eval("090000000000000e-0"), 90000000000000.) |
| 179 | self.assertEqual(eval("090000000000000j"), 90000000000000j) |
Raymond Hettinger | 8a99b50 | 2003-06-23 13:36:57 +0000 | [diff] [blame] | 180 | self.assertEqual(eval("000000000000008."), 8.) |
| 181 | self.assertEqual(eval("000000000000009."), 9.) |
Guido van Rossum | cd16bf6 | 2007-06-13 18:07:49 +0000 | [diff] [blame] | 182 | self.assertEqual(eval("0b101010"), 42) |
| 183 | self.assertEqual(eval("-0b000000000010"), -2) |
| 184 | self.assertEqual(eval("0o777"), 511) |
| 185 | self.assertEqual(eval("-0o0000010"), -8) |
Raymond Hettinger | 8a99b50 | 2003-06-23 13:36:57 +0000 | [diff] [blame] | 186 | |
| 187 | def test_unary_minus(self): |
| 188 | # Verify treatment of unary minus on negative numbers SF bug #660455 |
Christian Heimes | a37d4c6 | 2007-12-04 23:02:19 +0000 | [diff] [blame] | 189 | if sys.maxsize == 2147483647: |
Guido van Rossum | 6c9e130 | 2003-11-29 23:52:13 +0000 | [diff] [blame] | 190 | # 32-bit machine |
| 191 | all_one_bits = '0xffffffff' |
Guido van Rossum | e2a383d | 2007-01-15 16:59:06 +0000 | [diff] [blame] | 192 | self.assertEqual(eval(all_one_bits), 4294967295) |
| 193 | self.assertEqual(eval("-" + all_one_bits), -4294967295) |
Christian Heimes | a37d4c6 | 2007-12-04 23:02:19 +0000 | [diff] [blame] | 194 | elif sys.maxsize == 9223372036854775807: |
Guido van Rossum | 6c9e130 | 2003-11-29 23:52:13 +0000 | [diff] [blame] | 195 | # 64-bit machine |
Raymond Hettinger | 8a99b50 | 2003-06-23 13:36:57 +0000 | [diff] [blame] | 196 | all_one_bits = '0xffffffffffffffff' |
Guido van Rossum | e2a383d | 2007-01-15 16:59:06 +0000 | [diff] [blame] | 197 | self.assertEqual(eval(all_one_bits), 18446744073709551615) |
| 198 | self.assertEqual(eval("-" + all_one_bits), -18446744073709551615) |
Guido van Rossum | 6c9e130 | 2003-11-29 23:52:13 +0000 | [diff] [blame] | 199 | else: |
| 200 | self.fail("How many bits *does* this machine have???") |
Ezio Melotti | 42da663 | 2011-03-15 05:18:48 +0200 | [diff] [blame] | 201 | # Verify treatment of constant folding on -(sys.maxsize+1) |
Serhiy Storchaka | 9594942 | 2013-08-27 19:40:23 +0300 | [diff] [blame] | 202 | # i.e. -2147483648 on 32 bit platforms. Should return int. |
Ezio Melotti | e961593 | 2010-01-24 19:26:24 +0000 | [diff] [blame] | 203 | self.assertIsInstance(eval("%s" % (-sys.maxsize - 1)), int) |
| 204 | self.assertIsInstance(eval("%s" % (-sys.maxsize - 2)), int) |
Thomas Wouters | 0e3f591 | 2006-08-11 14:57:12 +0000 | [diff] [blame] | 205 | |
Christian Heimes | a37d4c6 | 2007-12-04 23:02:19 +0000 | [diff] [blame] | 206 | if sys.maxsize == 9223372036854775807: |
Thomas Wouters | 0e3f591 | 2006-08-11 14:57:12 +0000 | [diff] [blame] | 207 | def test_32_63_bit_values(self): |
| 208 | a = +4294967296 # 1 << 32 |
| 209 | b = -4294967296 # 1 << 32 |
| 210 | c = +281474976710656 # 1 << 48 |
| 211 | d = -281474976710656 # 1 << 48 |
| 212 | e = +4611686018427387904 # 1 << 62 |
| 213 | f = -4611686018427387904 # 1 << 62 |
| 214 | g = +9223372036854775807 # 1 << 63 - 1 |
| 215 | h = -9223372036854775807 # 1 << 63 - 1 |
| 216 | |
Neal Norwitz | 221085d | 2007-02-25 20:55:47 +0000 | [diff] [blame] | 217 | for variable in self.test_32_63_bit_values.__code__.co_consts: |
Thomas Wouters | 0e3f591 | 2006-08-11 14:57:12 +0000 | [diff] [blame] | 218 | if variable is not None: |
Ezio Melotti | e961593 | 2010-01-24 19:26:24 +0000 | [diff] [blame] | 219 | self.assertIsInstance(variable, int) |
Raymond Hettinger | 8a99b50 | 2003-06-23 13:36:57 +0000 | [diff] [blame] | 220 | |
| 221 | def test_sequence_unpacking_error(self): |
| 222 | # Verify sequence packing/unpacking with "or". SF bug #757818 |
| 223 | i,j = (1, -1) or (-1, 1) |
| 224 | self.assertEqual(i, 1) |
| 225 | self.assertEqual(j, -1) |
Guido van Rossum | 4b499dd3 | 2003-02-13 22:07:59 +0000 | [diff] [blame] | 226 | |
Raymond Hettinger | 11a70c7 | 2004-07-17 21:46:25 +0000 | [diff] [blame] | 227 | def test_none_assignment(self): |
| 228 | stmts = [ |
| 229 | 'None = 0', |
| 230 | 'None += 0', |
| 231 | '__builtins__.None = 0', |
| 232 | 'def None(): pass', |
| 233 | 'class None: pass', |
| 234 | '(a, None) = 0, 0', |
| 235 | 'for None in range(10): pass', |
| 236 | 'def f(None): pass', |
Benjamin Peterson | 78565b2 | 2009-06-28 19:19:51 +0000 | [diff] [blame] | 237 | 'import None', |
| 238 | 'import x as None', |
| 239 | 'from x import None', |
| 240 | 'from x import y as None' |
Raymond Hettinger | 11a70c7 | 2004-07-17 21:46:25 +0000 | [diff] [blame] | 241 | ] |
| 242 | for stmt in stmts: |
| 243 | stmt += "\n" |
| 244 | self.assertRaises(SyntaxError, compile, stmt, 'tmp', 'single') |
| 245 | self.assertRaises(SyntaxError, compile, stmt, 'tmp', 'exec') |
Tim Peters | d507dab | 2001-08-30 20:51:59 +0000 | [diff] [blame] | 246 | |
Anthony Baxter | 1a4ddae | 2004-08-31 10:07:13 +0000 | [diff] [blame] | 247 | def test_import(self): |
| 248 | succeed = [ |
| 249 | 'import sys', |
| 250 | 'import os, sys', |
Thomas Wouters | 0e3f591 | 2006-08-11 14:57:12 +0000 | [diff] [blame] | 251 | 'import os as bar', |
| 252 | 'import os.path as bar', |
Anthony Baxter | 1a4ddae | 2004-08-31 10:07:13 +0000 | [diff] [blame] | 253 | 'from __future__ import nested_scopes, generators', |
| 254 | 'from __future__ import (nested_scopes,\ngenerators)', |
| 255 | 'from __future__ import (nested_scopes,\ngenerators,)', |
| 256 | 'from sys import stdin, stderr, stdout', |
| 257 | 'from sys import (stdin, stderr,\nstdout)', |
| 258 | 'from sys import (stdin, stderr,\nstdout,)', |
| 259 | 'from sys import (stdin\n, stderr, stdout)', |
| 260 | 'from sys import (stdin\n, stderr, stdout,)', |
| 261 | 'from sys import stdin as si, stdout as so, stderr as se', |
| 262 | 'from sys import (stdin as si, stdout as so, stderr as se)', |
| 263 | 'from sys import (stdin as si, stdout as so, stderr as se,)', |
| 264 | ] |
| 265 | fail = [ |
| 266 | 'import (os, sys)', |
| 267 | 'import (os), (sys)', |
| 268 | 'import ((os), (sys))', |
| 269 | 'import (sys', |
| 270 | 'import sys)', |
| 271 | 'import (os,)', |
Thomas Wouters | 0e3f591 | 2006-08-11 14:57:12 +0000 | [diff] [blame] | 272 | 'import os As bar', |
| 273 | 'import os.path a bar', |
| 274 | 'from sys import stdin As stdout', |
| 275 | 'from sys import stdin a stdout', |
Anthony Baxter | 1a4ddae | 2004-08-31 10:07:13 +0000 | [diff] [blame] | 276 | 'from (sys) import stdin', |
| 277 | 'from __future__ import (nested_scopes', |
| 278 | 'from __future__ import nested_scopes)', |
| 279 | 'from __future__ import nested_scopes,\ngenerators', |
| 280 | 'from sys import (stdin', |
| 281 | 'from sys import stdin)', |
| 282 | 'from sys import stdin, stdout,\nstderr', |
| 283 | 'from sys import stdin si', |
| 284 | 'from sys import stdin,' |
| 285 | 'from sys import (*)', |
| 286 | 'from sys import (stdin,, stdout, stderr)', |
| 287 | 'from sys import (stdin, stdout),', |
| 288 | ] |
| 289 | for stmt in succeed: |
| 290 | compile(stmt, 'tmp', 'exec') |
| 291 | for stmt in fail: |
| 292 | self.assertRaises(SyntaxError, compile, stmt, 'tmp', 'exec') |
| 293 | |
Raymond Hettinger | 9047c8f | 2004-10-24 00:10:06 +0000 | [diff] [blame] | 294 | def test_for_distinct_code_objects(self): |
| 295 | # SF bug 1048870 |
| 296 | def f(): |
| 297 | f1 = lambda x=1: x |
| 298 | f2 = lambda x=2: x |
| 299 | return f1, f2 |
| 300 | f1, f2 = f() |
Neal Norwitz | 221085d | 2007-02-25 20:55:47 +0000 | [diff] [blame] | 301 | self.assertNotEqual(id(f1.__code__), id(f2.__code__)) |
Raymond Hettinger | 9047c8f | 2004-10-24 00:10:06 +0000 | [diff] [blame] | 302 | |
Benjamin Peterson | e6dd2cb | 2010-03-17 20:56:58 +0000 | [diff] [blame] | 303 | def test_lambda_doc(self): |
| 304 | l = lambda: "foo" |
| 305 | self.assertIsNone(l.__doc__) |
Thomas Wouters | 49fd7fa | 2006-04-21 10:40:58 +0000 | [diff] [blame] | 306 | |
Serhiy Storchaka | 607cb9c | 2014-09-05 11:00:56 +0300 | [diff] [blame] | 307 | def test_encoding(self): |
| 308 | code = b'# -*- coding: badencoding -*-\npass\n' |
| 309 | self.assertRaises(SyntaxError, compile, code, 'tmp', 'exec') |
| 310 | code = '# -*- coding: badencoding -*-\n"\xc2\xa4"\n' |
| 311 | compile(code, 'tmp', 'exec') |
| 312 | self.assertEqual(eval(code), '\xc2\xa4') |
| 313 | code = '"\xc2\xa4"\n' |
| 314 | self.assertEqual(eval(code), '\xc2\xa4') |
| 315 | code = b'"\xc2\xa4"\n' |
| 316 | self.assertEqual(eval(code), '\xa4') |
| 317 | code = b'# -*- coding: latin1 -*-\n"\xc2\xa4"\n' |
| 318 | self.assertEqual(eval(code), '\xc2\xa4') |
| 319 | code = b'# -*- coding: utf-8 -*-\n"\xc2\xa4"\n' |
| 320 | self.assertEqual(eval(code), '\xa4') |
| 321 | code = b'# -*- coding: iso8859-15 -*-\n"\xc2\xa4"\n' |
| 322 | self.assertEqual(eval(code), '\xc2\u20ac') |
| 323 | code = '"""\\\n# -*- coding: iso8859-15 -*-\n\xc2\xa4"""\n' |
| 324 | self.assertEqual(eval(code), '# -*- coding: iso8859-15 -*-\n\xc2\xa4') |
| 325 | code = b'"""\\\n# -*- coding: iso8859-15 -*-\n\xc2\xa4"""\n' |
| 326 | self.assertEqual(eval(code), '# -*- coding: iso8859-15 -*-\n\xa4') |
Benjamin Peterson | 5d2ad25 | 2010-03-17 20:57:32 +0000 | [diff] [blame] | 327 | |
Nick Coghlan | eadee9a | 2006-03-13 12:31:58 +0000 | [diff] [blame] | 328 | def test_subscripts(self): |
| 329 | # SF bug 1448804 |
| 330 | # Class to make testing subscript results easy |
| 331 | class str_map(object): |
| 332 | def __init__(self): |
| 333 | self.data = {} |
| 334 | def __getitem__(self, key): |
| 335 | return self.data[str(key)] |
| 336 | def __setitem__(self, key, value): |
| 337 | self.data[str(key)] = value |
| 338 | def __delitem__(self, key): |
| 339 | del self.data[str(key)] |
| 340 | def __contains__(self, key): |
| 341 | return str(key) in self.data |
| 342 | d = str_map() |
| 343 | # Index |
| 344 | d[1] = 1 |
| 345 | self.assertEqual(d[1], 1) |
| 346 | d[1] += 1 |
| 347 | self.assertEqual(d[1], 2) |
| 348 | del d[1] |
Ezio Melotti | b58e0bd | 2010-01-23 15:40:09 +0000 | [diff] [blame] | 349 | self.assertNotIn(1, d) |
Nick Coghlan | eadee9a | 2006-03-13 12:31:58 +0000 | [diff] [blame] | 350 | # Tuple of indices |
| 351 | d[1, 1] = 1 |
| 352 | self.assertEqual(d[1, 1], 1) |
| 353 | d[1, 1] += 1 |
| 354 | self.assertEqual(d[1, 1], 2) |
| 355 | del d[1, 1] |
Ezio Melotti | b58e0bd | 2010-01-23 15:40:09 +0000 | [diff] [blame] | 356 | self.assertNotIn((1, 1), d) |
Nick Coghlan | eadee9a | 2006-03-13 12:31:58 +0000 | [diff] [blame] | 357 | # Simple slice |
| 358 | d[1:2] = 1 |
| 359 | self.assertEqual(d[1:2], 1) |
| 360 | d[1:2] += 1 |
| 361 | self.assertEqual(d[1:2], 2) |
| 362 | del d[1:2] |
Ezio Melotti | b58e0bd | 2010-01-23 15:40:09 +0000 | [diff] [blame] | 363 | self.assertNotIn(slice(1, 2), d) |
Nick Coghlan | eadee9a | 2006-03-13 12:31:58 +0000 | [diff] [blame] | 364 | # Tuple of simple slices |
| 365 | d[1:2, 1:2] = 1 |
| 366 | self.assertEqual(d[1:2, 1:2], 1) |
| 367 | d[1:2, 1:2] += 1 |
| 368 | self.assertEqual(d[1:2, 1:2], 2) |
| 369 | del d[1:2, 1:2] |
Ezio Melotti | b58e0bd | 2010-01-23 15:40:09 +0000 | [diff] [blame] | 370 | self.assertNotIn((slice(1, 2), slice(1, 2)), d) |
Nick Coghlan | eadee9a | 2006-03-13 12:31:58 +0000 | [diff] [blame] | 371 | # Extended slice |
| 372 | d[1:2:3] = 1 |
| 373 | self.assertEqual(d[1:2:3], 1) |
| 374 | d[1:2:3] += 1 |
| 375 | self.assertEqual(d[1:2:3], 2) |
| 376 | del d[1:2:3] |
Ezio Melotti | b58e0bd | 2010-01-23 15:40:09 +0000 | [diff] [blame] | 377 | self.assertNotIn(slice(1, 2, 3), d) |
Nick Coghlan | eadee9a | 2006-03-13 12:31:58 +0000 | [diff] [blame] | 378 | # Tuple of extended slices |
| 379 | d[1:2:3, 1:2:3] = 1 |
| 380 | self.assertEqual(d[1:2:3, 1:2:3], 1) |
| 381 | d[1:2:3, 1:2:3] += 1 |
| 382 | self.assertEqual(d[1:2:3, 1:2:3], 2) |
| 383 | del d[1:2:3, 1:2:3] |
Ezio Melotti | b58e0bd | 2010-01-23 15:40:09 +0000 | [diff] [blame] | 384 | self.assertNotIn((slice(1, 2, 3), slice(1, 2, 3)), d) |
Nick Coghlan | eadee9a | 2006-03-13 12:31:58 +0000 | [diff] [blame] | 385 | # Ellipsis |
| 386 | d[...] = 1 |
| 387 | self.assertEqual(d[...], 1) |
| 388 | d[...] += 1 |
| 389 | self.assertEqual(d[...], 2) |
| 390 | del d[...] |
Ezio Melotti | b58e0bd | 2010-01-23 15:40:09 +0000 | [diff] [blame] | 391 | self.assertNotIn(Ellipsis, d) |
Nick Coghlan | eadee9a | 2006-03-13 12:31:58 +0000 | [diff] [blame] | 392 | # Tuple of Ellipses |
| 393 | d[..., ...] = 1 |
| 394 | self.assertEqual(d[..., ...], 1) |
| 395 | d[..., ...] += 1 |
| 396 | self.assertEqual(d[..., ...], 2) |
| 397 | del d[..., ...] |
Ezio Melotti | b58e0bd | 2010-01-23 15:40:09 +0000 | [diff] [blame] | 398 | self.assertNotIn((Ellipsis, Ellipsis), d) |
Nick Coghlan | eadee9a | 2006-03-13 12:31:58 +0000 | [diff] [blame] | 399 | |
Guido van Rossum | 0240b92 | 2007-02-26 21:23:50 +0000 | [diff] [blame] | 400 | def test_annotation_limit(self): |
Guido van Rossum | 1bc535d | 2007-05-15 18:46:22 +0000 | [diff] [blame] | 401 | # 16 bits are available for # of annotations, but only 8 bits are |
| 402 | # available for the parameter count, hence 255 |
Guido van Rossum | 0240b92 | 2007-02-26 21:23:50 +0000 | [diff] [blame] | 403 | # is the max. Ensure the result of too many annotations is a |
| 404 | # SyntaxError. |
Guido van Rossum | 1bc535d | 2007-05-15 18:46:22 +0000 | [diff] [blame] | 405 | s = "def f(%s): pass" |
| 406 | s %= ', '.join('a%d:%d' % (i,i) for i in range(256)) |
Guido van Rossum | 0240b92 | 2007-02-26 21:23:50 +0000 | [diff] [blame] | 407 | self.assertRaises(SyntaxError, compile, s, '?', 'exec') |
| 408 | # Test that the max # of annotations compiles. |
Guido van Rossum | 1bc535d | 2007-05-15 18:46:22 +0000 | [diff] [blame] | 409 | s = "def f(%s): pass" |
| 410 | s %= ', '.join('a%d:%d' % (i,i) for i in range(255)) |
Guido van Rossum | 0240b92 | 2007-02-26 21:23:50 +0000 | [diff] [blame] | 411 | compile(s, '?', 'exec') |
Guido van Rossum | d8faa36 | 2007-04-27 19:54:29 +0000 | [diff] [blame] | 412 | |
| 413 | def test_mangling(self): |
| 414 | class A: |
| 415 | def f(): |
| 416 | __mangled = 1 |
| 417 | __not_mangled__ = 2 |
| 418 | import __mangled_mod |
| 419 | import __package__.module |
| 420 | |
Benjamin Peterson | 577473f | 2010-01-19 00:09:57 +0000 | [diff] [blame] | 421 | self.assertIn("_A__mangled", A.f.__code__.co_varnames) |
| 422 | self.assertIn("__not_mangled__", A.f.__code__.co_varnames) |
| 423 | self.assertIn("_A__mangled_mod", A.f.__code__.co_varnames) |
| 424 | self.assertIn("__package__", A.f.__code__.co_varnames) |
Guido van Rossum | d8faa36 | 2007-04-27 19:54:29 +0000 | [diff] [blame] | 425 | |
Martin v. Löwis | 618dc5e | 2008-03-30 20:03:44 +0000 | [diff] [blame] | 426 | def test_compile_ast(self): |
| 427 | fname = __file__ |
| 428 | if fname.lower().endswith(('pyc', 'pyo')): |
| 429 | fname = fname[:-1] |
| 430 | with open(fname, 'r') as f: |
| 431 | fcontents = f.read() |
| 432 | sample_code = [ |
| 433 | ['<assign>', 'x = 5'], |
| 434 | ['<ifblock>', """if True:\n pass\n"""], |
| 435 | ['<forblock>', """for n in [1, 2, 3]:\n print(n)\n"""], |
| 436 | ['<deffunc>', """def foo():\n pass\nfoo()\n"""], |
| 437 | [fname, fcontents], |
| 438 | ] |
| 439 | |
| 440 | for fname, code in sample_code: |
| 441 | co1 = compile(code, '%s1' % fname, 'exec') |
| 442 | ast = compile(code, '%s2' % fname, 'exec', _ast.PyCF_ONLY_AST) |
Benjamin Peterson | c9c0f20 | 2009-06-30 23:06:06 +0000 | [diff] [blame] | 443 | self.assertTrue(type(ast) == _ast.Module) |
Martin v. Löwis | 618dc5e | 2008-03-30 20:03:44 +0000 | [diff] [blame] | 444 | co2 = compile(ast, '%s3' % fname, 'exec') |
| 445 | self.assertEqual(co1, co2) |
Neal Norwitz | db4115f | 2008-03-31 04:20:05 +0000 | [diff] [blame] | 446 | # the code object's filename comes from the second compilation step |
| 447 | self.assertEqual(co2.co_filename, '%s3' % fname) |
| 448 | |
| 449 | # raise exception when node type doesn't match with compile mode |
| 450 | co1 = compile('print(1)', '<string>', 'exec', _ast.PyCF_ONLY_AST) |
| 451 | self.assertRaises(TypeError, compile, co1, '<ast>', 'eval') |
| 452 | |
| 453 | # raise exception when node type is no start node |
| 454 | self.assertRaises(TypeError, compile, _ast.If(), '<ast>', 'exec') |
| 455 | |
| 456 | # raise exception when node has invalid children |
| 457 | ast = _ast.Module() |
| 458 | ast.body = [_ast.BoolOp()] |
| 459 | self.assertRaises(TypeError, compile, ast, '<ast>', 'exec') |
Martin v. Löwis | 618dc5e | 2008-03-30 20:03:44 +0000 | [diff] [blame] | 460 | |
Benjamin Peterson | 43b0686 | 2011-05-27 09:08:01 -0500 | [diff] [blame] | 461 | @support.cpython_only |
| 462 | def test_same_filename_used(self): |
| 463 | s = """def f(): pass\ndef g(): pass""" |
| 464 | c = compile(s, "myfile", "exec") |
| 465 | for obj in c.co_consts: |
| 466 | if isinstance(obj, types.CodeType): |
| 467 | self.assertIs(obj.co_filename, c.co_filename) |
| 468 | |
Meador Inge | fa21bf0 | 2012-01-19 01:08:41 -0600 | [diff] [blame] | 469 | def test_single_statement(self): |
| 470 | self.compile_single("1 + 2") |
| 471 | self.compile_single("\n1 + 2") |
| 472 | self.compile_single("1 + 2\n") |
| 473 | self.compile_single("1 + 2\n\n") |
| 474 | self.compile_single("1 + 2\t\t\n") |
| 475 | self.compile_single("1 + 2\t\t\n ") |
| 476 | self.compile_single("1 + 2 # one plus two") |
| 477 | self.compile_single("1; 2") |
| 478 | self.compile_single("import sys; sys") |
| 479 | self.compile_single("def f():\n pass") |
| 480 | self.compile_single("while False:\n pass") |
| 481 | self.compile_single("if x:\n f(x)") |
| 482 | self.compile_single("if x:\n f(x)\nelse:\n g(x)") |
| 483 | self.compile_single("class T:\n pass") |
| 484 | |
| 485 | def test_bad_single_statement(self): |
| 486 | self.assertInvalidSingle('1\n2') |
| 487 | self.assertInvalidSingle('def f(): pass') |
| 488 | self.assertInvalidSingle('a = 13\nb = 187') |
| 489 | self.assertInvalidSingle('del x\ndel y') |
| 490 | self.assertInvalidSingle('f()\ng()') |
Benjamin Peterson | cff9237 | 2012-01-19 17:46:13 -0500 | [diff] [blame] | 491 | self.assertInvalidSingle('f()\n# blah\nblah()') |
| 492 | self.assertInvalidSingle('f()\nxy # blah\nblah()') |
Benjamin Peterson | 77fc1f3 | 2012-01-20 11:01:06 -0500 | [diff] [blame] | 493 | self.assertInvalidSingle('x = 5 # comment\nx = 6\n') |
Martin v. Löwis | 618dc5e | 2008-03-30 20:03:44 +0000 | [diff] [blame] | 494 | |
Nick Coghlan | aab9c2b | 2012-11-04 23:14:34 +1000 | [diff] [blame] | 495 | @support.cpython_only |
| 496 | def test_compiler_recursion_limit(self): |
| 497 | # Expected limit is sys.getrecursionlimit() * the scaling factor |
| 498 | # in symtable.c (currently 3) |
| 499 | # We expect to fail *at* that limit, because we use up some of |
| 500 | # the stack depth limit in the test suite code |
| 501 | # So we check the expected limit and 75% of that |
| 502 | # XXX (ncoghlan): duplicating the scaling factor here is a little |
| 503 | # ugly. Perhaps it should be exposed somewhere... |
| 504 | fail_depth = sys.getrecursionlimit() * 3 |
| 505 | success_depth = int(fail_depth * 0.75) |
| 506 | |
| 507 | def check_limit(prefix, repeated): |
| 508 | expect_ok = prefix + repeated * success_depth |
| 509 | self.compile_single(expect_ok) |
| 510 | broken = prefix + repeated * fail_depth |
| 511 | details = "Compiling ({!r} + {!r} * {})".format( |
| 512 | prefix, repeated, fail_depth) |
| 513 | with self.assertRaises(RuntimeError, msg=details): |
| 514 | self.compile_single(broken) |
| 515 | |
| 516 | check_limit("a", "()") |
| 517 | check_limit("a", ".b") |
| 518 | check_limit("a", "[0]") |
| 519 | check_limit("a", "*a") |
| 520 | |
| 521 | |
Antoine Pitrou | 9961405 | 2014-05-23 11:46:03 +0200 | [diff] [blame] | 522 | class TestStackSize(unittest.TestCase): |
| 523 | # These tests check that the computed stack size for a code object |
| 524 | # stays within reasonable bounds (see issue #21523 for an example |
| 525 | # dysfunction). |
| 526 | N = 100 |
| 527 | |
| 528 | def check_stack_size(self, code): |
| 529 | # To assert that the alleged stack size is not O(N), we |
| 530 | # check that it is smaller than log(N). |
| 531 | if isinstance(code, str): |
| 532 | code = compile(code, "<foo>", "single") |
| 533 | max_size = math.ceil(math.log(len(code.co_code))) |
| 534 | self.assertLessEqual(code.co_stacksize, max_size) |
| 535 | |
| 536 | def test_and(self): |
| 537 | self.check_stack_size("x and " * self.N + "x") |
| 538 | |
| 539 | def test_or(self): |
| 540 | self.check_stack_size("x or " * self.N + "x") |
| 541 | |
| 542 | def test_and_or(self): |
| 543 | self.check_stack_size("x and x or " * self.N + "x") |
| 544 | |
| 545 | def test_chained_comparison(self): |
| 546 | self.check_stack_size("x < " * self.N + "x") |
| 547 | |
| 548 | def test_if_else(self): |
| 549 | self.check_stack_size("x if x else " * self.N + "x") |
| 550 | |
| 551 | def test_binop(self): |
| 552 | self.check_stack_size("x + " * self.N + "x") |
| 553 | |
| 554 | def test_func_and(self): |
| 555 | code = "def f(x):\n" |
| 556 | code += " x and x\n" * self.N |
| 557 | self.check_stack_size(code) |
| 558 | |
Tim Peters | d507dab | 2001-08-30 20:51:59 +0000 | [diff] [blame] | 559 | |
Raymond Hettinger | 8a99b50 | 2003-06-23 13:36:57 +0000 | [diff] [blame] | 560 | if __name__ == "__main__": |
Antoine Pitrou | 9961405 | 2014-05-23 11:46:03 +0200 | [diff] [blame] | 561 | unittest.main() |