Issue #15467: Move helpers for __sizeof__ tests into test_support.
Patch by Serhiy Storchaka.
This commit is contained in:
Martin v. Löwis
parent
90bc2dbcce
commit
33f799725c
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@ -23,6 +23,9 @@ import time
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import sysconfig
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import fnmatch
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import logging.handlers
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import struct
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import tempfile
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import _testcapi
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try:
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import _thread, threading
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@ -984,6 +987,31 @@ def python_is_optimized():
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return final_opt and final_opt != '-O0'
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_header = '2P'
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if hasattr(sys, "gettotalrefcount"):
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_header = '2P' + _header
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_vheader = _header + 'P'
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def calcobjsize(fmt):
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return struct.calcsize(_header + fmt + '0P')
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def calcvobjsize(fmt):
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return struct.calcsize(_vheader + fmt + '0P')
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_TPFLAGS_HAVE_GC = 1<<14
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_TPFLAGS_HEAPTYPE = 1<<9
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def check_sizeof(test, o, size):
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result = sys.getsizeof(o)
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# add GC header size
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if ((type(o) == type) and (o.__flags__ & _TPFLAGS_HEAPTYPE) or\
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((type(o) != type) and (type(o).__flags__ & _TPFLAGS_HAVE_GC))):
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size += _testcapi.SIZEOF_PYGC_HEAD
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msg = 'wrong size for %s: got %d, expected %d' \
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% (type(o), result, size)
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test.assertEqual(result, size, msg)
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#=======================================================================
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# Decorator for running a function in a different locale, correctly resetting
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# it afterwards.
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@ -3,7 +3,7 @@ import unittest
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import struct
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import sys
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from test.support import run_unittest, cpython_only
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from test import support
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ISBIGENDIAN = sys.byteorder == "big"
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IS32BIT = sys.maxsize == 0x7fffffff
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@ -30,32 +30,6 @@ def bigendian_to_native(value):
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return string_reverse(value)
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class StructTest(unittest.TestCase):
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def setUp(self):
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# due to missing size_t information from struct, it is assumed that
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# sizeof(Py_ssize_t) = sizeof(void*)
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self.header = 'PP'
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if hasattr(sys, "gettotalrefcount"):
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self.header += '2P'
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def check_sizeof(self, format_str, number_of_codes):
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def size(fmt):
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"""Wrapper around struct.calcsize which enforces the alignment
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of the end of a structure to the alignment requirement of pointer.
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Note: This wrapper should only be used if a pointer member is
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included and no member with a size larger than a pointer exists.
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"""
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return struct.calcsize(fmt + '0P')
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struct_obj = struct.Struct(format_str)
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# The size of 'PyStructObject'
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totalsize = size(self.header + '5P')
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# The size taken up by the 'formatcode' dynamic array
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totalsize += size('3P') * (number_of_codes + 1)
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result = sys.getsizeof(struct_obj)
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msg = 'wrong size for %s: got %d, expected %d' \
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% (type(struct_obj), result, totalsize)
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self.assertEqual(result, totalsize, msg)
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def test_isbigendian(self):
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self.assertEqual((struct.pack('=i', 1)[0] == 0), ISBIGENDIAN)
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@ -583,7 +557,14 @@ class StructTest(unittest.TestCase):
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s = struct.Struct('i')
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s.__init__('ii')
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@cpython_only
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def check_sizeof(self, format_str, number_of_codes):
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# The size of 'PyStructObject'
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totalsize = support.calcobjsize('5P')
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# The size taken up by the 'formatcode' dynamic array
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totalsize += struct.calcsize('3P') * (number_of_codes + 1)
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support.check_sizeof(self, struct.Struct(format_str), totalsize)
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@support.cpython_only
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def test__sizeof__(self):
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for code in integer_codes:
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self.check_sizeof(code, 1)
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@ -598,7 +579,7 @@ class StructTest(unittest.TestCase):
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self.check_sizeof('0c', 0)
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def test_main():
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run_unittest(StructTest)
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support.run_unittest(StructTest)
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if __name__ == '__main__':
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test_main()
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@ -570,22 +570,8 @@ class SysModuleTest(unittest.TestCase):
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class SizeofTest(unittest.TestCase):
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TPFLAGS_HAVE_GC = 1<<14
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TPFLAGS_HEAPTYPE = 1<<9
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def setUp(self):
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self.c = len(struct.pack('c', b' '))
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self.H = len(struct.pack('H', 0))
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self.i = len(struct.pack('i', 0))
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self.l = len(struct.pack('l', 0))
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self.P = len(struct.pack('P', 0))
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# due to missing size_t information from struct, it is assumed that
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# sizeof(Py_ssize_t) = sizeof(void*)
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self.header = 'PP'
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self.vheader = self.header + 'P'
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if hasattr(sys, "gettotalrefcount"):
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self.header += '2P'
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self.vheader += '2P'
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self.P = struct.calcsize('P')
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self.longdigit = sys.int_info.sizeof_digit
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import _testcapi
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self.gc_headsize = _testcapi.SIZEOF_PYGC_HEAD
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@ -595,123 +581,102 @@ class SizeofTest(unittest.TestCase):
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self.file.close()
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test.support.unlink(test.support.TESTFN)
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def check_sizeof(self, o, size):
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result = sys.getsizeof(o)
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# add GC header size
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if ((type(o) == type) and (o.__flags__ & self.TPFLAGS_HEAPTYPE) or\
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((type(o) != type) and (type(o).__flags__ & self.TPFLAGS_HAVE_GC))):
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size += self.gc_headsize
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msg = 'wrong size for %s: got %d, expected %d' \
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% (type(o), result, size)
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self.assertEqual(result, size, msg)
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def calcsize(self, fmt):
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"""Wrapper around struct.calcsize which enforces the alignment of the
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end of a structure to the alignment requirement of pointer.
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Note: This wrapper should only be used if a pointer member is included
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and no member with a size larger than a pointer exists.
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"""
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return struct.calcsize(fmt + '0P')
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check_sizeof = test.support.check_sizeof
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def test_gc_head_size(self):
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# Check that the gc header size is added to objects tracked by the gc.
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h = self.header
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vh = self.vheader
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size = self.calcsize
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vsize = test.support.calcvobjsize
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gc_header_size = self.gc_headsize
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# bool objects are not gc tracked
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self.assertEqual(sys.getsizeof(True), size(vh) + self.longdigit)
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self.assertEqual(sys.getsizeof(True), vsize('') + self.longdigit)
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# but lists are
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self.assertEqual(sys.getsizeof([]), size(vh + 'PP') + gc_header_size)
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self.assertEqual(sys.getsizeof([]), vsize('PP') + gc_header_size)
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def test_default(self):
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h = self.header
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vh = self.vheader
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size = self.calcsize
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self.assertEqual(sys.getsizeof(True), size(vh) + self.longdigit)
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self.assertEqual(sys.getsizeof(True, -1), size(vh) + self.longdigit)
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vsize = test.support.calcvobjsize
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self.assertEqual(sys.getsizeof(True), vsize('') + self.longdigit)
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self.assertEqual(sys.getsizeof(True, -1), vsize('') + self.longdigit)
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def test_objecttypes(self):
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# check all types defined in Objects/
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h = self.header
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vh = self.vheader
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size = self.calcsize
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size = test.support.calcobjsize
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vsize = test.support.calcvobjsize
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check = self.check_sizeof
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# bool
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check(True, size(vh) + self.longdigit)
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check(True, vsize('') + self.longdigit)
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# buffer
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# XXX
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# builtin_function_or_method
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check(len, size(h + '3P'))
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check(len, size('3P')) # XXX check layout
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# bytearray
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samples = [b'', b'u'*100000]
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for sample in samples:
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x = bytearray(sample)
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check(x, size(vh + 'iPP') + x.__alloc__() * self.c)
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check(x, vsize('iPP') + x.__alloc__())
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# bytearray_iterator
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check(iter(bytearray()), size(h + 'PP'))
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check(iter(bytearray()), size('PP'))
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# cell
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def get_cell():
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x = 42
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def inner():
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return x
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return inner
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check(get_cell().__closure__[0], size(h + 'P'))
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check(get_cell().__closure__[0], size('P'))
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# code
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check(get_cell().__code__, size(h + '5i8Pi3P'))
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check(get_cell().__code__, size('5i8Pi3P'))
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# complex
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check(complex(0,1), size(h + '2d'))
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check(complex(0,1), size('2d'))
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# method_descriptor (descriptor object)
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check(str.lower, size(h + '2PP'))
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check(str.lower, size('2PP'))
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# classmethod_descriptor (descriptor object)
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# XXX
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# member_descriptor (descriptor object)
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import datetime
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check(datetime.timedelta.days, size(h + '2PP'))
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check(datetime.timedelta.days, size('2PP'))
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# getset_descriptor (descriptor object)
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import collections
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check(collections.defaultdict.default_factory, size(h + '2PP'))
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check(collections.defaultdict.default_factory, size('2PP'))
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# wrapper_descriptor (descriptor object)
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check(int.__add__, size(h + '2P2P'))
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check(int.__add__, size('2P2P'))
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# method-wrapper (descriptor object)
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check({}.__iter__, size(h + '2P'))
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check({}.__iter__, size('2P'))
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# dict
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check({}, size(h + '3P2P' + 8*'P2P'))
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check({}, size('3P2P' + 8*'P2P'))
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longdict = {1:1, 2:2, 3:3, 4:4, 5:5, 6:6, 7:7, 8:8}
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check(longdict, size(h + '3P2P' + 8*'P2P') + 16*size('P2P'))
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check(longdict, size('3P2P' + 8*'P2P') + 16*struct.calcsize('P2P'))
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# dictionary-keyiterator
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check({}.keys(), size(h + 'P'))
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check({}.keys(), size('P'))
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# dictionary-valueiterator
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check({}.values(), size(h + 'P'))
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check({}.values(), size('P'))
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# dictionary-itemiterator
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check({}.items(), size(h + 'P'))
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check({}.items(), size('P'))
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# dictionary iterator
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check(iter({}), size('P2PPP'))
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# dictproxy
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class C(object): pass
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check(C.__dict__, size(h + 'P'))
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check(C.__dict__, size('P'))
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# BaseException
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check(BaseException(), size(h + '5P'))
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check(BaseException(), size('5P'))
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# UnicodeEncodeError
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check(UnicodeEncodeError("", "", 0, 0, ""), size(h + '5P 2P2PP'))
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check(UnicodeEncodeError("", "", 0, 0, ""), size('5P 2P2PP'))
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# UnicodeDecodeError
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# XXX
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# check(UnicodeDecodeError("", "", 0, 0, ""), size(h + '5P2PP'))
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check(UnicodeDecodeError("", b"", 0, 0, ""), size('5P 2P2PP'))
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# UnicodeTranslateError
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check(UnicodeTranslateError("", 0, 1, ""), size(h + '5P 2P2PP'))
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check(UnicodeTranslateError("", 0, 1, ""), size('5P 2P2PP'))
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# ellipses
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check(Ellipsis, size(h + ''))
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check(Ellipsis, size(''))
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# EncodingMap
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import codecs, encodings.iso8859_3
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x = codecs.charmap_build(encodings.iso8859_3.decoding_table)
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check(x, size(h + '32B2iB'))
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check(x, size('32B2iB'))
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# enumerate
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check(enumerate([]), size(h + 'l3P'))
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check(enumerate([]), size('l3P'))
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# reverse
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check(reversed(''), size(h + 'PP'))
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check(reversed(''), size('PP'))
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# float
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check(float(0), size(h + 'd'))
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check(float(0), size('d'))
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# sys.floatinfo
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check(sys.float_info, size(vh) + self.P * len(sys.float_info))
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check(sys.float_info, vsize('') + self.P * len(sys.float_info))
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# frame
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import inspect
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CO_MAXBLOCKS = 20
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@ -720,10 +685,10 @@ class SizeofTest(unittest.TestCase):
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nfrees = len(x.f_code.co_freevars)
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extras = x.f_code.co_stacksize + x.f_code.co_nlocals +\
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ncells + nfrees - 1
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check(x, size(vh + '12P3i' + CO_MAXBLOCKS*'3i' + 'P' + extras*'P'))
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check(x, vsize('12P3i' + CO_MAXBLOCKS*'3i' + 'P' + extras*'P'))
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# function
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def func(): pass
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check(func, size(h + '11P'))
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check(func, size('11P'))
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class c():
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@staticmethod
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def foo():
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@ -732,68 +697,68 @@ class SizeofTest(unittest.TestCase):
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def bar(cls):
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pass
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# staticmethod
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check(foo, size(h + 'P'))
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check(foo, size('P'))
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# classmethod
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check(bar, size(h + 'P'))
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check(bar, size('P'))
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# generator
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def get_gen(): yield 1
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check(get_gen(), size(h + 'Pi2P'))
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check(get_gen(), size('Pi2P'))
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# iterator
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check(iter('abc'), size(h + 'lP'))
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check(iter('abc'), size('lP'))
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# callable-iterator
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import re
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check(re.finditer('',''), size(h + '2P'))
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check(re.finditer('',''), size('2P'))
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# list
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samples = [[], [1,2,3], ['1', '2', '3']]
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for sample in samples:
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check(sample, size(vh + 'PP') + len(sample)*self.P)
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check(sample, vsize('PP') + len(sample)*self.P)
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# sortwrapper (list)
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# XXX
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# cmpwrapper (list)
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# XXX
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# listiterator (list)
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check(iter([]), size(h + 'lP'))
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check(iter([]), size('lP'))
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# listreverseiterator (list)
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check(reversed([]), size(h + 'lP'))
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check(reversed([]), size('lP'))
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# long
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check(0, size(vh))
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check(1, size(vh) + self.longdigit)
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check(-1, size(vh) + self.longdigit)
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check(0, vsize(''))
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check(1, vsize('') + self.longdigit)
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check(-1, vsize('') + self.longdigit)
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PyLong_BASE = 2**sys.int_info.bits_per_digit
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check(int(PyLong_BASE), size(vh) + 2*self.longdigit)
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check(int(PyLong_BASE**2-1), size(vh) + 2*self.longdigit)
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check(int(PyLong_BASE**2), size(vh) + 3*self.longdigit)
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# memory
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check(memoryview(b''), size(h + 'PP2P2i7P'))
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check(int(PyLong_BASE), vsize('') + 2*self.longdigit)
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check(int(PyLong_BASE**2-1), vsize('') + 2*self.longdigit)
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check(int(PyLong_BASE**2), vsize('') + 3*self.longdigit)
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# memoryview
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check(memoryview(b''), size('PP2P2i7P'))
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# module
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check(unittest, size(h + '3P'))
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check(unittest, size('3P'))
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# None
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check(None, size(h + ''))
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check(None, size(''))
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# NotImplementedType
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check(NotImplemented, size(h))
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check(NotImplemented, size(''))
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# object
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check(object(), size(h + ''))
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check(object(), size(''))
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# property (descriptor object)
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class C(object):
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def getx(self): return self.__x
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def setx(self, value): self.__x = value
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def delx(self): del self.__x
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x = property(getx, setx, delx, "")
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check(x, size(h + '4Pi'))
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check(x, size('4Pi'))
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# PyCapsule
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# XXX
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# rangeiterator
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check(iter(range(1)), size(h + '4l'))
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check(iter(range(1)), size('4l'))
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# reverse
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check(reversed(''), size(h + 'PP'))
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check(reversed(''), size('PP'))
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# range
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check(range(1), size(h + '4P'))
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check(range(66000), size(h + '4P'))
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check(range(1), size('4P'))
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check(range(66000), size('4P'))
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# set
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# frozenset
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PySet_MINSIZE = 8
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samples = [[], range(10), range(50)]
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s = size(h + '3P2P' + PySet_MINSIZE*'lP' + 'lP')
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s = size('3P2P' + PySet_MINSIZE*'PP' + 'PP')
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for sample in samples:
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minused = len(sample)
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if minused == 0: tmp = 1
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@ -810,18 +775,18 @@ class SizeofTest(unittest.TestCase):
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check(set(sample), s + newsize*struct.calcsize('lP'))
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check(frozenset(sample), s + newsize*struct.calcsize('lP'))
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# setiterator
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check(iter(set()), size(h + 'P3P'))
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check(iter(set()), size('P3P'))
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# slice
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check(slice(0), size(h + '3P'))
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check(slice(0), size('3P'))
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# super
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check(super(int), size(h + '3P'))
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check(super(int), size('3P'))
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# tuple
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check((), size(vh))
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check((1,2,3), size(vh) + 3*self.P)
|
||||
check((), vsize(''))
|
||||
check((1,2,3), vsize('') + 3*self.P)
|
||||
# type
|
||||
# (PyTypeObject + PyNumberMethods + PyMappingMethods +
|
||||
# PySequenceMethods + PyBufferProcs)
|
||||
s = size(vh + 'P2P15Pl4PP9PP11PI') + size('16Pi17P 3P 10P 2P 2P')
|
||||
s = vsize('P2P15Pl4PP9PP11PI') + struct.calcsize('16Pi17P 3P 10P 2P 2P')
|
||||
check(int, s)
|
||||
# class
|
||||
class newstyleclass(object): pass
|
||||
|
|
@ -832,39 +797,38 @@ class SizeofTest(unittest.TestCase):
|
|||
# we need to test for both sizes, because we don't know if the string
|
||||
# has been cached
|
||||
for s in samples:
|
||||
basicsize = size(h + 'PPPiP') + usize * (len(s) + 1)
|
||||
basicsize = size('PPPiP') + usize * (len(s) + 1)
|
||||
check(s, basicsize)
|
||||
# weakref
|
||||
import weakref
|
||||
check(weakref.ref(int), size(h + '2Pl2P'))
|
||||
check(weakref.ref(int), size('2Pl2P'))
|
||||
# weakproxy
|
||||
# XXX
|
||||
# weakcallableproxy
|
||||
check(weakref.proxy(int), size(h + '2Pl2P'))
|
||||
check(weakref.proxy(int), size('2Pl2P'))
|
||||
|
||||
def test_pythontypes(self):
|
||||
# check all types defined in Python/
|
||||
h = self.header
|
||||
vh = self.vheader
|
||||
size = self.calcsize
|
||||
size = test.support.calcobjsize
|
||||
vsize = test.support.calcvobjsize
|
||||
check = self.check_sizeof
|
||||
# _ast.AST
|
||||
import _ast
|
||||
check(_ast.AST(), size(h + ''))
|
||||
check(_ast.AST(), size(''))
|
||||
# imp.NullImporter
|
||||
import imp
|
||||
check(imp.NullImporter(self.file.name), size(h + ''))
|
||||
check(imp.NullImporter(self.file.name), size(''))
|
||||
try:
|
||||
raise TypeError
|
||||
except TypeError:
|
||||
tb = sys.exc_info()[2]
|
||||
# traceback
|
||||
if tb != None:
|
||||
check(tb, size(h + '2P2i'))
|
||||
check(tb, size('2P2i'))
|
||||
# symtable entry
|
||||
# XXX
|
||||
# sys.flags
|
||||
check(sys.flags, size(vh) + self.P * len(sys.flags))
|
||||
check(sys.flags, vsize('') + self.P * len(sys.flags))
|
||||
|
||||
|
||||
def test_main():
|
||||
|
|
|
|||
Loading…
Reference in New Issue