source: python/trunk/Lib/test/test_sys.py

Last change on this file was 391, checked in by dmik, 11 years ago

python: Merge vendor 2.7.6 to trunk.
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File size: 27.5 KB
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1# -*- coding: iso-8859-1 -*-
2import unittest, test.test_support
3import sys, os, cStringIO
4import struct
5import operator
6
7class SysModuleTest(unittest.TestCase):
8
9 def tearDown(self):
10 test.test_support.reap_children()
11
12 def test_original_displayhook(self):
13 import __builtin__
14 savestdout = sys.stdout
15 out = cStringIO.StringIO()
16 sys.stdout = out
17
18 dh = sys.__displayhook__
19
20 self.assertRaises(TypeError, dh)
21 if hasattr(__builtin__, "_"):
22 del __builtin__._
23
24 dh(None)
25 self.assertEqual(out.getvalue(), "")
26 self.assertTrue(not hasattr(__builtin__, "_"))
27 dh(42)
28 self.assertEqual(out.getvalue(), "42\n")
29 self.assertEqual(__builtin__._, 42)
30
31 del sys.stdout
32 self.assertRaises(RuntimeError, dh, 42)
33
34 sys.stdout = savestdout
35
36 def test_lost_displayhook(self):
37 olddisplayhook = sys.displayhook
38 del sys.displayhook
39 code = compile("42", "<string>", "single")
40 self.assertRaises(RuntimeError, eval, code)
41 sys.displayhook = olddisplayhook
42
43 def test_custom_displayhook(self):
44 olddisplayhook = sys.displayhook
45 def baddisplayhook(obj):
46 raise ValueError
47 sys.displayhook = baddisplayhook
48 code = compile("42", "<string>", "single")
49 self.assertRaises(ValueError, eval, code)
50 sys.displayhook = olddisplayhook
51
52 def test_original_excepthook(self):
53 savestderr = sys.stderr
54 err = cStringIO.StringIO()
55 sys.stderr = err
56
57 eh = sys.__excepthook__
58
59 self.assertRaises(TypeError, eh)
60 try:
61 raise ValueError(42)
62 except ValueError, exc:
63 eh(*sys.exc_info())
64
65 sys.stderr = savestderr
66 self.assertTrue(err.getvalue().endswith("ValueError: 42\n"))
67
68 # FIXME: testing the code for a lost or replaced excepthook in
69 # Python/pythonrun.c::PyErr_PrintEx() is tricky.
70
71 def test_exc_clear(self):
72 self.assertRaises(TypeError, sys.exc_clear, 42)
73
74 # Verify that exc_info is present and matches exc, then clear it, and
75 # check that it worked.
76 def clear_check(exc):
77 typ, value, traceback = sys.exc_info()
78 self.assertTrue(typ is not None)
79 self.assertTrue(value is exc)
80 self.assertTrue(traceback is not None)
81
82 with test.test_support.check_py3k_warnings():
83 sys.exc_clear()
84
85 typ, value, traceback = sys.exc_info()
86 self.assertTrue(typ is None)
87 self.assertTrue(value is None)
88 self.assertTrue(traceback is None)
89
90 def clear():
91 try:
92 raise ValueError, 42
93 except ValueError, exc:
94 clear_check(exc)
95
96 # Raise an exception and check that it can be cleared
97 clear()
98
99 # Verify that a frame currently handling an exception is
100 # unaffected by calling exc_clear in a nested frame.
101 try:
102 raise ValueError, 13
103 except ValueError, exc:
104 typ1, value1, traceback1 = sys.exc_info()
105 clear()
106 typ2, value2, traceback2 = sys.exc_info()
107
108 self.assertTrue(typ1 is typ2)
109 self.assertTrue(value1 is exc)
110 self.assertTrue(value1 is value2)
111 self.assertTrue(traceback1 is traceback2)
112
113 # Check that an exception can be cleared outside of an except block
114 clear_check(exc)
115
116 def test_exit(self):
117 self.assertRaises(TypeError, sys.exit, 42, 42)
118
119 # call without argument
120 try:
121 sys.exit(0)
122 except SystemExit, exc:
123 self.assertEqual(exc.code, 0)
124 except:
125 self.fail("wrong exception")
126 else:
127 self.fail("no exception")
128
129 # call with tuple argument with one entry
130 # entry will be unpacked
131 try:
132 sys.exit(42)
133 except SystemExit, exc:
134 self.assertEqual(exc.code, 42)
135 except:
136 self.fail("wrong exception")
137 else:
138 self.fail("no exception")
139
140 # call with integer argument
141 try:
142 sys.exit((42,))
143 except SystemExit, exc:
144 self.assertEqual(exc.code, 42)
145 except:
146 self.fail("wrong exception")
147 else:
148 self.fail("no exception")
149
150 # call with string argument
151 try:
152 sys.exit("exit")
153 except SystemExit, exc:
154 self.assertEqual(exc.code, "exit")
155 except:
156 self.fail("wrong exception")
157 else:
158 self.fail("no exception")
159
160 # call with tuple argument with two entries
161 try:
162 sys.exit((17, 23))
163 except SystemExit, exc:
164 self.assertEqual(exc.code, (17, 23))
165 except:
166 self.fail("wrong exception")
167 else:
168 self.fail("no exception")
169
170 # test that the exit machinery handles SystemExits properly
171 import subprocess
172 # both unnormalized...
173 rc = subprocess.call([sys.executable, "-c",
174 "raise SystemExit, 46"])
175 self.assertEqual(rc, 46)
176 # ... and normalized
177 rc = subprocess.call([sys.executable, "-c",
178 "raise SystemExit(47)"])
179 self.assertEqual(rc, 47)
180
181 def check_exit_message(code, expected, env=None):
182 process = subprocess.Popen([sys.executable, "-c", code],
183 stderr=subprocess.PIPE, env=env)
184 stdout, stderr = process.communicate()
185 self.assertEqual(process.returncode, 1)
186 self.assertTrue(stderr.startswith(expected),
187 "%s doesn't start with %s" % (repr(stderr), repr(expected)))
188
189 # test that stderr buffer if flushed before the exit message is written
190 # into stderr
191 check_exit_message(
192 r'import sys; sys.stderr.write("unflushed,"); sys.exit("message")',
193 b"unflushed,message")
194
195 # test that the unicode message is encoded to the stderr encoding
196 env = os.environ.copy()
197 env['PYTHONIOENCODING'] = 'latin-1'
198 check_exit_message(
199 r'import sys; sys.exit(u"h\xe9")',
200 b"h\xe9", env=env)
201
202 def test_getdefaultencoding(self):
203 if test.test_support.have_unicode:
204 self.assertRaises(TypeError, sys.getdefaultencoding, 42)
205 # can't check more than the type, as the user might have changed it
206 self.assertIsInstance(sys.getdefaultencoding(), str)
207
208 # testing sys.settrace() is done in test_sys_settrace.py
209 # testing sys.setprofile() is done in test_sys_setprofile.py
210
211 def test_setcheckinterval(self):
212 self.assertRaises(TypeError, sys.setcheckinterval)
213 orig = sys.getcheckinterval()
214 for n in 0, 100, 120, orig: # orig last to restore starting state
215 sys.setcheckinterval(n)
216 self.assertEqual(sys.getcheckinterval(), n)
217
218 def test_recursionlimit(self):
219 self.assertRaises(TypeError, sys.getrecursionlimit, 42)
220 oldlimit = sys.getrecursionlimit()
221 self.assertRaises(TypeError, sys.setrecursionlimit)
222 self.assertRaises(ValueError, sys.setrecursionlimit, -42)
223 sys.setrecursionlimit(10000)
224 self.assertEqual(sys.getrecursionlimit(), 10000)
225 sys.setrecursionlimit(oldlimit)
226
227 self.assertRaises(OverflowError, sys.setrecursionlimit, 1 << 31)
228 try:
229 sys.setrecursionlimit((1 << 31) - 5)
230 try:
231 # issue13546: isinstance(e, ValueError) used to fail
232 # when the recursion limit is close to 1<<31
233 raise ValueError()
234 except ValueError, e:
235 pass
236 finally:
237 sys.setrecursionlimit(oldlimit)
238
239 def test_getwindowsversion(self):
240 # Raise SkipTest if sys doesn't have getwindowsversion attribute
241 test.test_support.get_attribute(sys, "getwindowsversion")
242 v = sys.getwindowsversion()
243 self.assertEqual(len(v), 5)
244 self.assertIsInstance(v[0], int)
245 self.assertIsInstance(v[1], int)
246 self.assertIsInstance(v[2], int)
247 self.assertIsInstance(v[3], int)
248 self.assertIsInstance(v[4], str)
249 self.assertRaises(IndexError, operator.getitem, v, 5)
250 self.assertIsInstance(v.major, int)
251 self.assertIsInstance(v.minor, int)
252 self.assertIsInstance(v.build, int)
253 self.assertIsInstance(v.platform, int)
254 self.assertIsInstance(v.service_pack, str)
255 self.assertIsInstance(v.service_pack_minor, int)
256 self.assertIsInstance(v.service_pack_major, int)
257 self.assertIsInstance(v.suite_mask, int)
258 self.assertIsInstance(v.product_type, int)
259 self.assertEqual(v[0], v.major)
260 self.assertEqual(v[1], v.minor)
261 self.assertEqual(v[2], v.build)
262 self.assertEqual(v[3], v.platform)
263 self.assertEqual(v[4], v.service_pack)
264
265 # This is how platform.py calls it. Make sure tuple
266 # still has 5 elements
267 maj, min, buildno, plat, csd = sys.getwindowsversion()
268
269 def test_dlopenflags(self):
270 if hasattr(sys, "setdlopenflags"):
271 self.assertTrue(hasattr(sys, "getdlopenflags"))
272 self.assertRaises(TypeError, sys.getdlopenflags, 42)
273 oldflags = sys.getdlopenflags()
274 self.assertRaises(TypeError, sys.setdlopenflags)
275 sys.setdlopenflags(oldflags+1)
276 self.assertEqual(sys.getdlopenflags(), oldflags+1)
277 sys.setdlopenflags(oldflags)
278
279 def test_refcount(self):
280 # n here must be a global in order for this test to pass while
281 # tracing with a python function. Tracing calls PyFrame_FastToLocals
282 # which will add a copy of any locals to the frame object, causing
283 # the reference count to increase by 2 instead of 1.
284 global n
285 self.assertRaises(TypeError, sys.getrefcount)
286 c = sys.getrefcount(None)
287 n = None
288 self.assertEqual(sys.getrefcount(None), c+1)
289 del n
290 self.assertEqual(sys.getrefcount(None), c)
291 if hasattr(sys, "gettotalrefcount"):
292 self.assertIsInstance(sys.gettotalrefcount(), int)
293
294 def test_getframe(self):
295 self.assertRaises(TypeError, sys._getframe, 42, 42)
296 self.assertRaises(ValueError, sys._getframe, 2000000000)
297 self.assertTrue(
298 SysModuleTest.test_getframe.im_func.func_code \
299 is sys._getframe().f_code
300 )
301
302 # sys._current_frames() is a CPython-only gimmick.
303 def test_current_frames(self):
304 have_threads = True
305 try:
306 import thread
307 except ImportError:
308 have_threads = False
309
310 if have_threads:
311 self.current_frames_with_threads()
312 else:
313 self.current_frames_without_threads()
314
315 # Test sys._current_frames() in a WITH_THREADS build.
316 @test.test_support.reap_threads
317 def current_frames_with_threads(self):
318 import threading, thread
319 import traceback
320
321 # Spawn a thread that blocks at a known place. Then the main
322 # thread does sys._current_frames(), and verifies that the frames
323 # returned make sense.
324 entered_g = threading.Event()
325 leave_g = threading.Event()
326 thread_info = [] # the thread's id
327
328 def f123():
329 g456()
330
331 def g456():
332 thread_info.append(thread.get_ident())
333 entered_g.set()
334 leave_g.wait()
335
336 t = threading.Thread(target=f123)
337 t.start()
338 entered_g.wait()
339
340 # At this point, t has finished its entered_g.set(), although it's
341 # impossible to guess whether it's still on that line or has moved on
342 # to its leave_g.wait().
343 self.assertEqual(len(thread_info), 1)
344 thread_id = thread_info[0]
345
346 d = sys._current_frames()
347
348 main_id = thread.get_ident()
349 self.assertIn(main_id, d)
350 self.assertIn(thread_id, d)
351
352 # Verify that the captured main-thread frame is _this_ frame.
353 frame = d.pop(main_id)
354 self.assertTrue(frame is sys._getframe())
355
356 # Verify that the captured thread frame is blocked in g456, called
357 # from f123. This is a litte tricky, since various bits of
358 # threading.py are also in the thread's call stack.
359 frame = d.pop(thread_id)
360 stack = traceback.extract_stack(frame)
361 for i, (filename, lineno, funcname, sourceline) in enumerate(stack):
362 if funcname == "f123":
363 break
364 else:
365 self.fail("didn't find f123() on thread's call stack")
366
367 self.assertEqual(sourceline, "g456()")
368
369 # And the next record must be for g456().
370 filename, lineno, funcname, sourceline = stack[i+1]
371 self.assertEqual(funcname, "g456")
372 self.assertIn(sourceline, ["leave_g.wait()", "entered_g.set()"])
373
374 # Reap the spawned thread.
375 leave_g.set()
376 t.join()
377
378 # Test sys._current_frames() when thread support doesn't exist.
379 def current_frames_without_threads(self):
380 # Not much happens here: there is only one thread, with artificial
381 # "thread id" 0.
382 d = sys._current_frames()
383 self.assertEqual(len(d), 1)
384 self.assertIn(0, d)
385 self.assertTrue(d[0] is sys._getframe())
386
387 def test_attributes(self):
388 self.assertIsInstance(sys.api_version, int)
389 self.assertIsInstance(sys.argv, list)
390 self.assertIn(sys.byteorder, ("little", "big"))
391 self.assertIsInstance(sys.builtin_module_names, tuple)
392 self.assertIsInstance(sys.copyright, basestring)
393 self.assertIsInstance(sys.exec_prefix, basestring)
394 self.assertIsInstance(sys.executable, basestring)
395 self.assertEqual(len(sys.float_info), 11)
396 self.assertEqual(sys.float_info.radix, 2)
397 self.assertEqual(len(sys.long_info), 2)
398 self.assertTrue(sys.long_info.bits_per_digit % 5 == 0)
399 self.assertTrue(sys.long_info.sizeof_digit >= 1)
400 self.assertEqual(type(sys.long_info.bits_per_digit), int)
401 self.assertEqual(type(sys.long_info.sizeof_digit), int)
402 self.assertIsInstance(sys.hexversion, int)
403 self.assertIsInstance(sys.maxint, int)
404 if test.test_support.have_unicode:
405 self.assertIsInstance(sys.maxunicode, int)
406 self.assertIsInstance(sys.platform, basestring)
407 self.assertIsInstance(sys.prefix, basestring)
408 self.assertIsInstance(sys.version, basestring)
409 vi = sys.version_info
410 self.assertIsInstance(vi[:], tuple)
411 self.assertEqual(len(vi), 5)
412 self.assertIsInstance(vi[0], int)
413 self.assertIsInstance(vi[1], int)
414 self.assertIsInstance(vi[2], int)
415 self.assertIn(vi[3], ("alpha", "beta", "candidate", "final"))
416 self.assertIsInstance(vi[4], int)
417 self.assertIsInstance(vi.major, int)
418 self.assertIsInstance(vi.minor, int)
419 self.assertIsInstance(vi.micro, int)
420 self.assertIn(vi.releaselevel, ("alpha", "beta", "candidate", "final"))
421 self.assertIsInstance(vi.serial, int)
422 self.assertEqual(vi[0], vi.major)
423 self.assertEqual(vi[1], vi.minor)
424 self.assertEqual(vi[2], vi.micro)
425 self.assertEqual(vi[3], vi.releaselevel)
426 self.assertEqual(vi[4], vi.serial)
427 self.assertTrue(vi > (1,0,0))
428 self.assertIsInstance(sys.float_repr_style, str)
429 self.assertIn(sys.float_repr_style, ('short', 'legacy'))
430
431 def test_43581(self):
432 # Can't use sys.stdout, as this is a cStringIO object when
433 # the test runs under regrtest.
434 self.assertTrue(sys.__stdout__.encoding == sys.__stderr__.encoding)
435
436 def test_sys_flags(self):
437 self.assertTrue(sys.flags)
438 attrs = ("debug", "py3k_warning", "division_warning", "division_new",
439 "inspect", "interactive", "optimize", "dont_write_bytecode",
440 "no_site", "ignore_environment", "tabcheck", "verbose",
441 "unicode", "bytes_warning", "hash_randomization")
442 for attr in attrs:
443 self.assertTrue(hasattr(sys.flags, attr), attr)
444 self.assertEqual(type(getattr(sys.flags, attr)), int, attr)
445 self.assertTrue(repr(sys.flags))
446
447 def test_clear_type_cache(self):
448 sys._clear_type_cache()
449
450 def test_ioencoding(self):
451 import subprocess
452 env = dict(os.environ)
453
454 # Test character: cent sign, encoded as 0x4A (ASCII J) in CP424,
455 # not representable in ASCII.
456
457 env["PYTHONIOENCODING"] = "cp424"
458 p = subprocess.Popen([sys.executable, "-c", 'print unichr(0xa2)'],
459 stdout = subprocess.PIPE, env=env)
460 out = p.communicate()[0].strip()
461 self.assertEqual(out, unichr(0xa2).encode("cp424"))
462
463 env["PYTHONIOENCODING"] = "ascii:replace"
464 p = subprocess.Popen([sys.executable, "-c", 'print unichr(0xa2)'],
465 stdout = subprocess.PIPE, env=env)
466 out = p.communicate()[0].strip()
467 self.assertEqual(out, '?')
468
469 def test_call_tracing(self):
470 self.assertEqual(sys.call_tracing(str, (2,)), "2")
471 self.assertRaises(TypeError, sys.call_tracing, str, 2)
472
473 def test_executable(self):
474 # sys.executable should be absolute
475 self.assertEqual(os.path.abspath(sys.executable), sys.executable)
476
477 # Issue #7774: Ensure that sys.executable is an empty string if argv[0]
478 # has been set to an non existent program name and Python is unable to
479 # retrieve the real program name
480 import subprocess
481 # For a normal installation, it should work without 'cwd'
482 # argument. For test runs in the build directory, see #7774.
483 python_dir = os.path.dirname(os.path.realpath(sys.executable))
484 p = subprocess.Popen(
485 ["nonexistent", "-c", 'import sys; print repr(sys.executable)'],
486 executable=sys.executable, stdout=subprocess.PIPE, cwd=python_dir)
487 executable = p.communicate()[0].strip()
488 p.wait()
489 self.assertIn(executable, ["''", repr(sys.executable)])
490
491class SizeofTest(unittest.TestCase):
492
493 def setUp(self):
494 self.P = struct.calcsize('P')
495 self.longdigit = sys.long_info.sizeof_digit
496 import _testcapi
497 self.gc_headsize = _testcapi.SIZEOF_PYGC_HEAD
498 self.file = open(test.test_support.TESTFN, 'wb')
499
500 def tearDown(self):
501 self.file.close()
502 test.test_support.unlink(test.test_support.TESTFN)
503
504 check_sizeof = test.test_support.check_sizeof
505
506 def test_gc_head_size(self):
507 # Check that the gc header size is added to objects tracked by the gc.
508 size = test.test_support.calcobjsize
509 gc_header_size = self.gc_headsize
510 # bool objects are not gc tracked
511 self.assertEqual(sys.getsizeof(True), size('l'))
512 # but lists are
513 self.assertEqual(sys.getsizeof([]), size('P PP') + gc_header_size)
514
515 def test_default(self):
516 size = test.test_support.calcobjsize
517 self.assertEqual(sys.getsizeof(True, -1), size('l'))
518
519 def test_objecttypes(self):
520 # check all types defined in Objects/
521 size = test.test_support.calcobjsize
522 vsize = test.test_support.calcvobjsize
523 check = self.check_sizeof
524 # bool
525 check(True, size('l'))
526 # buffer
527 with test.test_support.check_py3k_warnings():
528 check(buffer(''), size('2P2Pil'))
529 # builtin_function_or_method
530 check(len, size('3P'))
531 # bytearray
532 samples = ['', 'u'*100000]
533 for sample in samples:
534 x = bytearray(sample)
535 check(x, vsize('iPP') + x.__alloc__())
536 # bytearray_iterator
537 check(iter(bytearray()), size('PP'))
538 # cell
539 def get_cell():
540 x = 42
541 def inner():
542 return x
543 return inner
544 check(get_cell().func_closure[0], size('P'))
545 # classobj (old-style class)
546 class class_oldstyle():
547 def method():
548 pass
549 check(class_oldstyle, size('7P'))
550 # instance (old-style class)
551 check(class_oldstyle(), size('3P'))
552 # instancemethod (old-style class)
553 check(class_oldstyle().method, size('4P'))
554 # complex
555 check(complex(0,1), size('2d'))
556 # code
557 check(get_cell().func_code, size('4i8Pi3P'))
558 # BaseException
559 check(BaseException(), size('3P'))
560 # UnicodeEncodeError
561 check(UnicodeEncodeError("", u"", 0, 0, ""), size('5P2PP'))
562 # UnicodeDecodeError
563 check(UnicodeDecodeError("", "", 0, 0, ""), size('5P2PP'))
564 # UnicodeTranslateError
565 check(UnicodeTranslateError(u"", 0, 1, ""), size('5P2PP'))
566 # method_descriptor (descriptor object)
567 check(str.lower, size('2PP'))
568 # classmethod_descriptor (descriptor object)
569 # XXX
570 # member_descriptor (descriptor object)
571 import datetime
572 check(datetime.timedelta.days, size('2PP'))
573 # getset_descriptor (descriptor object)
574 import __builtin__
575 check(__builtin__.file.closed, size('2PP'))
576 # wrapper_descriptor (descriptor object)
577 check(int.__add__, size('2P2P'))
578 # dictproxy
579 class C(object): pass
580 check(C.__dict__, size('P'))
581 # method-wrapper (descriptor object)
582 check({}.__iter__, size('2P'))
583 # dict
584 check({}, size('3P2P' + 8*'P2P'))
585 x = {1:1, 2:2, 3:3, 4:4, 5:5, 6:6, 7:7, 8:8}
586 check(x, size('3P2P' + 8*'P2P') + 16*struct.calcsize('P2P'))
587 # dictionary-keyiterator
588 check({}.iterkeys(), size('P2PPP'))
589 # dictionary-valueiterator
590 check({}.itervalues(), size('P2PPP'))
591 # dictionary-itemiterator
592 check({}.iteritems(), size('P2PPP'))
593 # ellipses
594 check(Ellipsis, size(''))
595 # EncodingMap
596 import codecs, encodings.iso8859_3
597 x = codecs.charmap_build(encodings.iso8859_3.decoding_table)
598 check(x, size('32B2iB'))
599 # enumerate
600 check(enumerate([]), size('l3P'))
601 # file
602 check(self.file, size('4P2i4P3i3P3i'))
603 # float
604 check(float(0), size('d'))
605 # sys.floatinfo
606 check(sys.float_info, vsize('') + self.P * len(sys.float_info))
607 # frame
608 import inspect
609 CO_MAXBLOCKS = 20
610 x = inspect.currentframe()
611 ncells = len(x.f_code.co_cellvars)
612 nfrees = len(x.f_code.co_freevars)
613 extras = x.f_code.co_stacksize + x.f_code.co_nlocals +\
614 ncells + nfrees - 1
615 check(x, vsize('12P3i' + CO_MAXBLOCKS*'3i' + 'P' + extras*'P'))
616 # function
617 def func(): pass
618 check(func, size('9P'))
619 class c():
620 @staticmethod
621 def foo():
622 pass
623 @classmethod
624 def bar(cls):
625 pass
626 # staticmethod
627 check(foo, size('P'))
628 # classmethod
629 check(bar, size('P'))
630 # generator
631 def get_gen(): yield 1
632 check(get_gen(), size('Pi2P'))
633 # integer
634 check(1, size('l'))
635 check(100, size('l'))
636 # iterator
637 check(iter('abc'), size('lP'))
638 # callable-iterator
639 import re
640 check(re.finditer('',''), size('2P'))
641 # list
642 samples = [[], [1,2,3], ['1', '2', '3']]
643 for sample in samples:
644 check(sample, vsize('PP') + len(sample)*self.P)
645 # sortwrapper (list)
646 # XXX
647 # cmpwrapper (list)
648 # XXX
649 # listiterator (list)
650 check(iter([]), size('lP'))
651 # listreverseiterator (list)
652 check(reversed([]), size('lP'))
653 # long
654 check(0L, vsize(''))
655 check(1L, vsize('') + self.longdigit)
656 check(-1L, vsize('') + self.longdigit)
657 PyLong_BASE = 2**sys.long_info.bits_per_digit
658 check(long(PyLong_BASE), vsize('') + 2*self.longdigit)
659 check(long(PyLong_BASE**2-1), vsize('') + 2*self.longdigit)
660 check(long(PyLong_BASE**2), vsize('') + 3*self.longdigit)
661 # module
662 check(unittest, size('P'))
663 # None
664 check(None, size(''))
665 # object
666 check(object(), size(''))
667 # property (descriptor object)
668 class C(object):
669 def getx(self): return self.__x
670 def setx(self, value): self.__x = value
671 def delx(self): del self.__x
672 x = property(getx, setx, delx, "")
673 check(x, size('4Pi'))
674 # PyCObject
675 # PyCapsule
676 # XXX
677 # rangeiterator
678 check(iter(xrange(1)), size('4l'))
679 # reverse
680 check(reversed(''), size('PP'))
681 # set
682 # frozenset
683 PySet_MINSIZE = 8
684 samples = [[], range(10), range(50)]
685 s = size('3P2P' + PySet_MINSIZE*'lP' + 'lP')
686 for sample in samples:
687 minused = len(sample)
688 if minused == 0: tmp = 1
689 # the computation of minused is actually a bit more complicated
690 # but this suffices for the sizeof test
691 minused = minused*2
692 newsize = PySet_MINSIZE
693 while newsize <= minused:
694 newsize = newsize << 1
695 if newsize <= 8:
696 check(set(sample), s)
697 check(frozenset(sample), s)
698 else:
699 check(set(sample), s + newsize*struct.calcsize('lP'))
700 check(frozenset(sample), s + newsize*struct.calcsize('lP'))
701 # setiterator
702 check(iter(set()), size('P3P'))
703 # slice
704 check(slice(1), size('3P'))
705 # str
706 vh = test.test_support._vheader
707 check('', struct.calcsize(vh + 'lic'))
708 check('abc', struct.calcsize(vh + 'lic') + 3)
709 # super
710 check(super(int), size('3P'))
711 # tuple
712 check((), vsize(''))
713 check((1,2,3), vsize('') + 3*self.P)
714 # tupleiterator
715 check(iter(()), size('lP'))
716 # type
717 # (PyTypeObject + PyNumberMethods + PyMappingMethods +
718 # PySequenceMethods + PyBufferProcs)
719 s = vsize('P2P15Pl4PP9PP11PI') + struct.calcsize('41P 10P 3P 6P')
720 class newstyleclass(object):
721 pass
722 check(newstyleclass, s)
723 # builtin type
724 check(int, s)
725 # NotImplementedType
726 import types
727 check(types.NotImplementedType, s)
728 # unicode
729 usize = len(u'\0'.encode('unicode-internal'))
730 samples = [u'', u'1'*100]
731 # we need to test for both sizes, because we don't know if the string
732 # has been cached
733 for s in samples:
734 check(s, size('PPlP') + usize * (len(s) + 1))
735 # weakref
736 import weakref
737 check(weakref.ref(int), size('2Pl2P'))
738 # weakproxy
739 # XXX
740 # weakcallableproxy
741 check(weakref.proxy(int), size('2Pl2P'))
742 # xrange
743 check(xrange(1), size('3l'))
744 check(xrange(66000), size('3l'))
745
746 def test_pythontypes(self):
747 # check all types defined in Python/
748 size = test.test_support.calcobjsize
749 vsize = test.test_support.calcvobjsize
750 check = self.check_sizeof
751 # _ast.AST
752 import _ast
753 check(_ast.AST(), size(''))
754 # imp.NullImporter
755 import imp
756 check(imp.NullImporter(self.file.name), size(''))
757 try:
758 raise TypeError
759 except TypeError:
760 tb = sys.exc_info()[2]
761 # traceback
762 if tb != None:
763 check(tb, size('2P2i'))
764 # symtable entry
765 # XXX
766 # sys.flags
767 check(sys.flags, vsize('') + self.P * len(sys.flags))
768
769
770def test_main():
771 test_classes = (SysModuleTest, SizeofTest)
772
773 test.test_support.run_unittest(*test_classes)
774
775if __name__ == "__main__":
776 test_main()
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