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✏️ test_sys.py
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# -*- coding: iso-8859-1 -*- import unittest, test.test_support from test.script_helper import assert_python_ok, assert_python_failure import cStringIO import gc import operator import os import struct import sys class SysModuleTest(unittest.TestCase): def tearDown(self): test.test_support.reap_children() def test_original_displayhook(self): import __builtin__ savestdout = sys.stdout out = cStringIO.StringIO() sys.stdout = out dh = sys.__displayhook__ self.assertRaises(TypeError, dh) if hasattr(__builtin__, "_"): del __builtin__._ dh(None) self.assertEqual(out.getvalue(), "") self.assertTrue(not hasattr(__builtin__, "_")) dh(42) self.assertEqual(out.getvalue(), "42\n") self.assertEqual(__builtin__._, 42) del sys.stdout self.assertRaises(RuntimeError, dh, 42) sys.stdout = savestdout def test_lost_displayhook(self): olddisplayhook = sys.displayhook del sys.displayhook code = compile("42", "<string>", "single") self.assertRaises(RuntimeError, eval, code) sys.displayhook = olddisplayhook def test_custom_displayhook(self): olddisplayhook = sys.displayhook def baddisplayhook(obj): raise ValueError sys.displayhook = baddisplayhook code = compile("42", "<string>", "single") self.assertRaises(ValueError, eval, code) sys.displayhook = olddisplayhook def test_original_excepthook(self): savestderr = sys.stderr err = cStringIO.StringIO() sys.stderr = err eh = sys.__excepthook__ self.assertRaises(TypeError, eh) try: raise ValueError(42) except ValueError, exc: eh(*sys.exc_info()) sys.stderr = savestderr self.assertTrue(err.getvalue().endswith("ValueError: 42\n")) # FIXME: testing the code for a lost or replaced excepthook in # Python/pythonrun.c::PyErr_PrintEx() is tricky. def test_exc_clear(self): self.assertRaises(TypeError, sys.exc_clear, 42) # Verify that exc_info is present and matches exc, then clear it, and # check that it worked. def clear_check(exc): typ, value, traceback = sys.exc_info() self.assertTrue(typ is not None) self.assertTrue(value is exc) self.assertTrue(traceback is not None) with test.test_support.check_py3k_warnings(): sys.exc_clear() typ, value, traceback = sys.exc_info() self.assertTrue(typ is None) self.assertTrue(value is None) self.assertTrue(traceback is None) def clear(): try: raise ValueError, 42 except ValueError, exc: clear_check(exc) # Raise an exception and check that it can be cleared clear() # Verify that a frame currently handling an exception is # unaffected by calling exc_clear in a nested frame. try: raise ValueError, 13 except ValueError, exc: typ1, value1, traceback1 = sys.exc_info() clear() typ2, value2, traceback2 = sys.exc_info() self.assertTrue(typ1 is typ2) self.assertTrue(value1 is exc) self.assertTrue(value1 is value2) self.assertTrue(traceback1 is traceback2) # Check that an exception can be cleared outside of an except block clear_check(exc) def test_exit(self): # call with two arguments self.assertRaises(TypeError, sys.exit, 42, 42) # call without argument with self.assertRaises(SystemExit) as cm: sys.exit() self.assertIsNone(cm.exception.code) rc, out, err = assert_python_ok('-c', 'import sys; sys.exit()') self.assertEqual(rc, 0) self.assertEqual(out, b'') self.assertEqual(err, b'') # call with integer argument with self.assertRaises(SystemExit) as cm: sys.exit(42) self.assertEqual(cm.exception.code, 42) # call with tuple argument with one entry # entry will be unpacked with self.assertRaises(SystemExit) as cm: sys.exit((42,)) self.assertEqual(cm.exception.code, 42) # call with string argument with self.assertRaises(SystemExit) as cm: sys.exit("exit") self.assertEqual(cm.exception.code, "exit") # call with tuple argument with two entries with self.assertRaises(SystemExit) as cm: sys.exit((17, 23)) self.assertEqual(cm.exception.code, (17, 23)) # test that the exit machinery handles SystemExits properly # both unnormalized... rc, out, err = assert_python_failure('-c', 'raise SystemExit, 46') self.assertEqual(rc, 46) self.assertEqual(out, b'') self.assertEqual(err, b'') # ... and normalized rc, out, err = assert_python_failure('-c', 'raise SystemExit(47)') self.assertEqual(rc, 47) self.assertEqual(out, b'') self.assertEqual(err, b'') # test that the exit machinery handles long exit codes rc, out, err = assert_python_failure('-c', 'raise SystemExit(47L)') self.assertEqual(rc, 47) self.assertEqual(out, b'') self.assertEqual(err, b'') rc, out, err = assert_python_ok('-c', 'raise SystemExit(0L)') self.assertEqual(rc, 0) self.assertEqual(out, b'') self.assertEqual(err, b'') def check_exit_message(code, expected, **env_vars): rc, out, err = assert_python_failure('-c', code, **env_vars) self.assertEqual(rc, 1) self.assertEqual(out, b'') self.assertTrue(err.startswith(expected), "%s doesn't start with %s" % (repr(err), repr(expected))) # test that stderr buffer is flushed before the exit message is written # into stderr check_exit_message( r'import sys; sys.stderr.write("unflushed,"); sys.exit("message")', b"unflushed,message") # test that the unicode message is encoded to the stderr encoding check_exit_message( r'import sys; sys.exit(u"h\xe9")', b"h\xe9", PYTHONIOENCODING='latin-1') def test_getdefaultencoding(self): if test.test_support.have_unicode: self.assertRaises(TypeError, sys.getdefaultencoding, 42) # can't check more than the type, as the user might have changed it self.assertIsInstance(sys.getdefaultencoding(), str) # testing sys.settrace() is done in test_sys_settrace.py # testing sys.setprofile() is done in test_sys_setprofile.py def test_setcheckinterval(self): self.assertRaises(TypeError, sys.setcheckinterval) orig = sys.getcheckinterval() for n in 0, 100, 120, orig: # orig last to restore starting state sys.setcheckinterval(n) self.assertEqual(sys.getcheckinterval(), n) def test_recursionlimit(self): self.assertRaises(TypeError, sys.getrecursionlimit, 42) oldlimit = sys.getrecursionlimit() self.assertRaises(TypeError, sys.setrecursionlimit) self.assertRaises(ValueError, sys.setrecursionlimit, -42) sys.setrecursionlimit(10000) self.assertEqual(sys.getrecursionlimit(), 10000) sys.setrecursionlimit(oldlimit) self.assertRaises(OverflowError, sys.setrecursionlimit, 1 << 31) try: sys.setrecursionlimit((1 << 31) - 5) try: # issue13546: isinstance(e, ValueError) used to fail # when the recursion limit is close to 1<<31 raise ValueError() except ValueError, e: pass finally: sys.setrecursionlimit(oldlimit) def test_getwindowsversion(self): # Raise SkipTest if sys doesn't have getwindowsversion attribute test.test_support.get_attribute(sys, "getwindowsversion") v = sys.getwindowsversion() self.assertEqual(len(v), 5) self.assertIsInstance(v[0], int) self.assertIsInstance(v[1], int) self.assertIsInstance(v[2], int) self.assertIsInstance(v[3], int) self.assertIsInstance(v[4], str) self.assertRaises(IndexError, operator.getitem, v, 5) self.assertIsInstance(v.major, int) self.assertIsInstance(v.minor, int) self.assertIsInstance(v.build, int) self.assertIsInstance(v.platform, int) self.assertIsInstance(v.service_pack, str) self.assertIsInstance(v.service_pack_minor, int) self.assertIsInstance(v.service_pack_major, int) self.assertIsInstance(v.suite_mask, int) self.assertIsInstance(v.product_type, int) self.assertEqual(v[0], v.major) self.assertEqual(v[1], v.minor) self.assertEqual(v[2], v.build) self.assertEqual(v[3], v.platform) self.assertEqual(v[4], v.service_pack) # This is how platform.py calls it. Make sure tuple # still has 5 elements maj, min, buildno, plat, csd = sys.getwindowsversion() @unittest.skipUnless(hasattr(sys, "setdlopenflags"), 'test needs sys.setdlopenflags()') def test_dlopenflags(self): self.assertTrue(hasattr(sys, "getdlopenflags")) self.assertRaises(TypeError, sys.getdlopenflags, 42) oldflags = sys.getdlopenflags() self.assertRaises(TypeError, sys.setdlopenflags) sys.setdlopenflags(oldflags+1) self.assertEqual(sys.getdlopenflags(), oldflags+1) sys.setdlopenflags(oldflags) def test_refcount(self): # n here must be a global in order for this test to pass while # tracing with a python function. Tracing calls PyFrame_FastToLocals # which will add a copy of any locals to the frame object, causing # the reference count to increase by 2 instead of 1. global n self.assertRaises(TypeError, sys.getrefcount) c = sys.getrefcount(None) n = None self.assertEqual(sys.getrefcount(None), c+1) del n self.assertEqual(sys.getrefcount(None), c) if hasattr(sys, "gettotalrefcount"): self.assertIsInstance(sys.gettotalrefcount(), int) def test_getframe(self): self.assertRaises(TypeError, sys._getframe, 42, 42) self.assertRaises(ValueError, sys._getframe, 2000000000) self.assertTrue( SysModuleTest.test_getframe.im_func.func_code \ is sys._getframe().f_code ) # sys._current_frames() is a CPython-only gimmick. def test_current_frames(self): have_threads = True try: import thread except ImportError: have_threads = False if have_threads: self.current_frames_with_threads() else: self.current_frames_without_threads() # Test sys._current_frames() in a WITH_THREADS build. @test.test_support.reap_threads def current_frames_with_threads(self): import threading, thread import traceback # Spawn a thread that blocks at a known place. Then the main # thread does sys._current_frames(), and verifies that the frames # returned make sense. entered_g = threading.Event() leave_g = threading.Event() thread_info = [] # the thread's id def f123(): g456() def g456(): thread_info.append(thread.get_ident()) entered_g.set() leave_g.wait() t = threading.Thread(target=f123) t.start() entered_g.wait() # At this point, t has finished its entered_g.set(), although it's # impossible to guess whether it's still on that line or has moved on # to its leave_g.wait(). self.assertEqual(len(thread_info), 1) thread_id = thread_info[0] d = sys._current_frames() main_id = thread.get_ident() self.assertIn(main_id, d) self.assertIn(thread_id, d) # Verify that the captured main-thread frame is _this_ frame. frame = d.pop(main_id) self.assertTrue(frame is sys._getframe()) # Verify that the captured thread frame is blocked in g456, called # from f123. This is a litte tricky, since various bits of # threading.py are also in the thread's call stack. frame = d.pop(thread_id) stack = traceback.extract_stack(frame) for i, (filename, lineno, funcname, sourceline) in enumerate(stack): if funcname == "f123": break else: self.fail("didn't find f123() on thread's call stack") self.assertEqual(sourceline, "g456()") # And the next record must be for g456(). filename, lineno, funcname, sourceline = stack[i+1] self.assertEqual(funcname, "g456") self.assertIn(sourceline, ["leave_g.wait()", "entered_g.set()"]) # Reap the spawned thread. leave_g.set() t.join() # Test sys._current_frames() when thread support doesn't exist. def current_frames_without_threads(self): # Not much happens here: there is only one thread, with artificial # "thread id" 0. d = sys._current_frames() self.assertEqual(len(d), 1) self.assertIn(0, d) self.assertTrue(d[0] is sys._getframe()) def test_attributes(self): self.assertIsInstance(sys.api_version, int) self.assertIsInstance(sys.argv, list) self.assertIn(sys.byteorder, ("little", "big")) self.assertIsInstance(sys.builtin_module_names, tuple) self.assertIsInstance(sys.copyright, basestring) self.assertIsInstance(sys.exec_prefix, basestring) self.assertIsInstance(sys.executable, basestring) self.assertEqual(len(sys.float_info), 11) self.assertEqual(sys.float_info.radix, 2) self.assertEqual(len(sys.long_info), 2) self.assertTrue(sys.long_info.bits_per_digit % 5 == 0) self.assertTrue(sys.long_info.sizeof_digit >= 1) self.assertEqual(type(sys.long_info.bits_per_digit), int) self.assertEqual(type(sys.long_info.sizeof_digit), int) self.assertIsInstance(sys.hexversion, int) self.assertIsInstance(sys.maxint, int) if test.test_support.have_unicode: self.assertIsInstance(sys.maxunicode, int) self.assertIsInstance(sys.platform, basestring) self.assertIsInstance(sys.prefix, basestring) self.assertIsInstance(sys.version, basestring) vi = sys.version_info self.assertIsInstance(vi[:], tuple) self.assertEqual(len(vi), 5) self.assertIsInstance(vi[0], int) self.assertIsInstance(vi[1], int) self.assertIsInstance(vi[2], int) self.assertIn(vi[3], ("alpha", "beta", "candidate", "final")) self.assertIsInstance(vi[4], int) self.assertIsInstance(vi.major, int) self.assertIsInstance(vi.minor, int) self.assertIsInstance(vi.micro, int) self.assertIn(vi.releaselevel, ("alpha", "beta", "candidate", "final")) self.assertIsInstance(vi.serial, int) self.assertEqual(vi[0], vi.major) self.assertEqual(vi[1], vi.minor) self.assertEqual(vi[2], vi.micro) self.assertEqual(vi[3], vi.releaselevel) self.assertEqual(vi[4], vi.serial) self.assertTrue(vi > (1,0,0)) self.assertIsInstance(sys.float_repr_style, str) self.assertIn(sys.float_repr_style, ('short', 'legacy')) def test_43581(self): # Can't use sys.stdout, as this is a cStringIO object when # the test runs under regrtest. if not (os.environ.get('PYTHONIOENCODING') or (sys.__stdout__.isatty() and sys.__stderr__.isatty())): self.skipTest('stdout/stderr encoding is not set') self.assertEqual(sys.__stdout__.encoding, sys.__stderr__.encoding) def test_sys_flags(self): self.assertTrue(sys.flags) attrs = ("debug", "py3k_warning", "division_warning", "division_new", "inspect", "interactive", "optimize", "dont_write_bytecode", "no_site", "ignore_environment", "tabcheck", "verbose", "unicode", "bytes_warning", "hash_randomization") for attr in attrs: self.assertTrue(hasattr(sys.flags, attr), attr) self.assertEqual(type(getattr(sys.flags, attr)), int, attr) self.assertTrue(repr(sys.flags)) @test.test_support.cpython_only def test_clear_type_cache(self): sys._clear_type_cache() def test_ioencoding(self): import subprocess env = dict(os.environ) # Test character: cent sign, encoded as 0x4A (ASCII J) in CP424, # not representable in ASCII. env["PYTHONIOENCODING"] = "cp424" p = subprocess.Popen([sys.executable, "-c", 'print unichr(0xa2)'], stdout = subprocess.PIPE, env=env) out = p.communicate()[0].strip() self.assertEqual(out, unichr(0xa2).encode("cp424")) env["PYTHONIOENCODING"] = "ascii:replace" p = subprocess.Popen([sys.executable, "-c", 'print unichr(0xa2)'], stdout = subprocess.PIPE, env=env) out = p.communicate()[0].strip() self.assertEqual(out, '?') def test_call_tracing(self): self.assertEqual(sys.call_tracing(str, (2,)), "2") self.assertRaises(TypeError, sys.call_tracing, str, 2) def test_executable(self): # sys.executable should be absolute self.assertEqual(os.path.abspath(sys.executable), sys.executable) # Issue #7774: Ensure that sys.executable is an empty string if argv[0] # has been set to a non existent program name and Python is unable to # retrieve the real program name import subprocess # For a normal installation, it should work without 'cwd' # argument. For test runs in the build directory, see #7774. python_dir = os.path.dirname(os.path.realpath(sys.executable)) p = subprocess.Popen( ["nonexistent", "-c", 'import sys; print repr(sys.executable)'], executable=sys.executable, stdout=subprocess.PIPE, cwd=python_dir) executable = p.communicate()[0].strip() p.wait() self.assertIn(executable, ["''", repr(sys.executable)]) def test_debugmallocstats(self): # Test sys._debugmallocstats() import subprocess # Verify the default of writing to stderr: p = subprocess.Popen([sys.executable, '-c', 'import sys; sys._debugmallocstats()'], stderr=subprocess.PIPE) out, err = p.communicate() p.wait() self.assertIn("arenas allocated current", err) # Verify that we can redirect the output to a file (not a file-like # object, though): with open('mallocstats.txt', 'w') as out: sys._debugmallocstats(out) result = open('mallocstats.txt').read() self.assertIn("arenas allocated current", result) os.unlink('mallocstats.txt') # Verify that the destination must be a file: with self.assertRaises(TypeError): sys._debugmallocstats(42) @test.test_support.cpython_only class SizeofTest(unittest.TestCase): def setUp(self): self.P = struct.calcsize('P') self.longdigit = sys.long_info.sizeof_digit import _testcapi self.gc_headsize = _testcapi.SIZEOF_PYGC_HEAD check_sizeof = test.test_support.check_sizeof def test_gc_head_size(self): # Check that the gc header size is added to objects tracked by the gc. size = test.test_support.calcobjsize gc_header_size = self.gc_headsize # bool objects are not gc tracked self.assertEqual(sys.getsizeof(True), size('l')) # but lists are self.assertEqual(sys.getsizeof([]), size('P PP') + gc_header_size) def test_errors(self): class BadSizeof(object): def __sizeof__(self): raise ValueError self.assertRaises(ValueError, sys.getsizeof, BadSizeof()) class InvalidSizeof(object): def __sizeof__(self): return None self.assertRaises(TypeError, sys.getsizeof, InvalidSizeof()) sentinel = ["sentinel"] self.assertIs(sys.getsizeof(InvalidSizeof(), sentinel), sentinel) class OverflowSizeof(long): def __sizeof__(self): return int(self) self.assertEqual(sys.getsizeof(OverflowSizeof(sys.maxsize)), sys.maxsize + self.gc_headsize) with self.assertRaises(OverflowError): sys.getsizeof(OverflowSizeof(sys.maxsize + 1)) with self.assertRaises(ValueError): sys.getsizeof(OverflowSizeof(-1)) with self.assertRaises((ValueError, OverflowError)): sys.getsizeof(OverflowSizeof(-sys.maxsize - 1)) def test_default(self): size = test.test_support.calcobjsize self.assertEqual(sys.getsizeof(True, -1), size('l')) def test_objecttypes(self): # check all types defined in Objects/ calcsize = struct.calcsize size = test.test_support.calcobjsize vsize = test.test_support.calcvobjsize check = self.check_sizeof # bool check(True, size('l')) # buffer with test.test_support.check_py3k_warnings(): check(buffer(''), size('2P2Pil')) # builtin_function_or_method check(len, size('3P')) # bytearray samples = ['', 'u'*100000] for sample in samples: x = bytearray(sample) check(x, vsize('iPP') + x.__alloc__()) # bytearray_iterator check(iter(bytearray()), size('PP')) # cell def get_cell(): x = 42 def inner(): return x return inner check(get_cell().func_closure[0], size('P')) # classobj (old-style class) class class_oldstyle(): def method(): pass check(class_oldstyle, size('7P')) # instance (old-style class) check(class_oldstyle(), size('3P')) # instancemethod (old-style class) check(class_oldstyle().method, size('4P')) # complex check(complex(0,1), size('2d')) # code check(get_cell().func_code, size('4i8Pi3P')) # BaseException check(BaseException(), size('3P')) # UnicodeEncodeError check(UnicodeEncodeError("", u"", 0, 0, ""), size('5P2PP')) # UnicodeDecodeError check(UnicodeDecodeError("", "", 0, 0, ""), size('5P2PP')) # UnicodeTranslateError check(UnicodeTranslateError(u"", 0, 1, ""), size('5P2PP')) # method_descriptor (descriptor object) check(str.lower, size('2PP')) # classmethod_descriptor (descriptor object) # XXX # member_descriptor (descriptor object) import datetime check(datetime.timedelta.days, size('2PP')) # getset_descriptor (descriptor object) import __builtin__ check(__builtin__.file.closed, size('2PP')) # wrapper_descriptor (descriptor object) check(int.__add__, size('2P2P')) # dictproxy class C(object): pass check(C.__dict__, size('P')) # method-wrapper (descriptor object) check({}.__iter__, size('2P')) # dict check({}, size('3P2P') + 8*calcsize('P2P')) x = {1:1, 2:2, 3:3, 4:4, 5:5, 6:6, 7:7, 8:8} check(x, size('3P2P') + 8*calcsize('P2P') + 16*calcsize('P2P')) # dictionary-keyview check({}.viewkeys(), size('P')) # dictionary-valueview check({}.viewvalues(), size('P')) # dictionary-itemview check({}.viewitems(), size('P')) # dictionary iterator check(iter({}), size('P2PPP')) # dictionary-keyiterator check({}.iterkeys(), size('P2PPP')) # dictionary-valueiterator check({}.itervalues(), size('P2PPP')) # dictionary-itemiterator check({}.iteritems(), size('P2PPP')) # ellipses check(Ellipsis, size('')) # EncodingMap import codecs, encodings.iso8859_3 x = codecs.charmap_build(encodings.iso8859_3.decoding_table) check(x, size('32B2iB')) # enumerate check(enumerate([]), size('l3P')) # file f = file(test.test_support.TESTFN, 'wb') try: check(f, size('4P2i4P3i3P3i')) finally: f.close() test.test_support.unlink(test.test_support.TESTFN) # float check(float(0), size('d')) # sys.floatinfo check(sys.float_info, vsize('') + self.P * len(sys.float_info)) # frame import inspect CO_MAXBLOCKS = 20 x = inspect.currentframe() ncells = len(x.f_code.co_cellvars) nfrees = len(x.f_code.co_freevars) extras = x.f_code.co_stacksize + x.f_code.co_nlocals +\ ncells + nfrees - 1 check(x, vsize('12P3i' + CO_MAXBLOCKS*'3i' + 'P' + extras*'P')) # function def func(): pass check(func, size('9P')) class c(): @staticmethod def foo(): pass @classmethod def bar(cls): pass # staticmethod check(foo, size('P')) # classmethod check(bar, size('P')) # generator def get_gen(): yield 1 check(get_gen(), size('Pi2P')) # integer check(1, size('l')) check(100, size('l')) # iterator check(iter('abc'), size('lP')) # callable-iterator import re check(re.finditer('',''), size('2P')) # list samples = [[], [1,2,3], ['1', '2', '3']] for sample in samples: check(sample, vsize('PP') + len(sample)*self.P) # sortwrapper (list) # XXX # cmpwrapper (list) # XXX # listiterator (list) check(iter([]), size('lP')) # listreverseiterator (list) check(reversed([]), size('lP')) # long check(0L, vsize('')) check(1L, vsize('') + self.longdigit) check(-1L, vsize('') + self.longdigit) PyLong_BASE = 2**sys.long_info.bits_per_digit check(long(PyLong_BASE), vsize('') + 2*self.longdigit) check(long(PyLong_BASE**2-1), vsize('') + 2*self.longdigit) check(long(PyLong_BASE**2), vsize('') + 3*self.longdigit) # module check(unittest, size('P')) # None check(None, size('')) # object check(object(), size('')) # property (descriptor object) class C(object): def getx(self): return self.__x def setx(self, value): self.__x = value def delx(self): del self.__x x = property(getx, setx, delx, "") check(x, size('4Pi')) # PyCObject # PyCapsule # XXX # rangeiterator check(iter(xrange(1)), size('4l')) # reverse check(reversed(''), size('PP')) # set # frozenset PySet_MINSIZE = 8 samples = [[], range(10), range(50)] s = size('3P2P' + PySet_MINSIZE*'lP' + 'lP') for sample in samples: minused = len(sample) if minused == 0: tmp = 1 # the computation of minused is actually a bit more complicated # but this suffices for the sizeof test minused = minused*2 newsize = PySet_MINSIZE while newsize <= minused: newsize = newsize << 1 if newsize <= 8: check(set(sample), s) check(frozenset(sample), s) else: check(set(sample), s + newsize*calcsize('lP')) check(frozenset(sample), s + newsize*calcsize('lP')) # setiterator check(iter(set()), size('P3P')) # slice check(slice(1), size('3P')) # str vh = test.test_support._vheader check('', calcsize(vh + 'lic')) check('abc', calcsize(vh + 'lic') + 3) # super check(super(int), size('3P')) # tuple check((), vsize('')) check((1,2,3), vsize('') + 3*self.P) # tupleiterator check(iter(()), size('lP')) # type fmt = 'P2P15Pl4PP9PP11PI' if hasattr(sys, 'getcounts'): fmt += '3P2P' s = vsize(fmt + # PyTypeObject '39P' # PyNumberMethods '3P' # PyMappingMethods '10P' # PySequenceMethods '6P' # PyBufferProcs '2P') class newstyleclass(object): pass check(newstyleclass, s) # builtin type check(int, s) # NotImplementedType import types check(types.NotImplementedType, s) # unicode usize = len(u'\0'.encode('unicode-internal')) samples = [u'', u'1'*100] # we need to test for both sizes, because we don't know if the string # has been cached for s in samples: check(s, size('PPlP') + usize * (len(s) + 1)) # weakref import weakref check(weakref.ref(int), size('2Pl2P')) # weakproxy # XXX # weakcallableproxy check(weakref.proxy(int), size('2Pl2P')) # xrange check(xrange(1), size('3l')) check(xrange(66000), size('3l')) def check_slots(self, obj, base, extra): expected = sys.getsizeof(base) + struct.calcsize(extra) if gc.is_tracked(obj) and not gc.is_tracked(base): expected += self.gc_headsize self.assertEqual(sys.getsizeof(obj), expected) def test_slots(self): # check all subclassable types defined in Objects/ that allow # non-empty __slots__ check = self.check_slots class BA(bytearray): __slots__ = 'a', 'b', 'c' check(BA(), bytearray(), '3P') class D(dict): __slots__ = 'a', 'b', 'c' check(D(x=[]), {'x': []}, '3P') class L(list): __slots__ = 'a', 'b', 'c' check(L(), [], '3P') class S(set): __slots__ = 'a', 'b', 'c' check(S(), set(), '3P') class FS(frozenset): __slots__ = 'a', 'b', 'c' check(FS(), frozenset(), '3P') def test_pythontypes(self): # check all types defined in Python/ size = test.test_support.calcobjsize vsize = test.test_support.calcvobjsize check = self.check_sizeof # _ast.AST import _ast check(_ast.AST(), size('')) # imp.NullImporter import imp f = open(test.test_support.TESTFN, 'wb') try: check(imp.NullImporter(f.name), size('')) finally: f.close() test.test_support.unlink(test.test_support.TESTFN) try: raise TypeError except TypeError: tb = sys.exc_info()[2] # traceback if tb != None: check(tb, size('2P2i')) # symtable entry # XXX # sys.flags check(sys.flags, vsize('') + self.P * len(sys.flags)) def test_main(): test_classes = (SysModuleTest, SizeofTest) test.test_support.run_unittest(*test_classes) if __name__ == "__main__": test_main()
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8.3.30
🚀
Quick Actions
📍 Script location
🌐 Web root
🗑️ Temp
📁 /lib64/python2.7/test
⚡ Nexus File Manager • 1447 items