510 lines
17 KiB
Python
510 lines
17 KiB
Python
# -*- coding: iso-8859-1 -*-
|
|
import unittest, test.support
|
|
import sys, io, os
|
|
|
|
class SysModuleTest(unittest.TestCase):
|
|
|
|
def setUp(self):
|
|
self.orig_stdout = sys.stdout
|
|
self.orig_stderr = sys.stderr
|
|
self.orig_displayhook = sys.displayhook
|
|
|
|
def tearDown(self):
|
|
sys.stdout = self.orig_stdout
|
|
sys.stderr = self.orig_stderr
|
|
sys.displayhook = self.orig_displayhook
|
|
|
|
def test_original_displayhook(self):
|
|
import builtins
|
|
out = io.StringIO()
|
|
sys.stdout = out
|
|
|
|
dh = sys.__displayhook__
|
|
|
|
self.assertRaises(TypeError, dh)
|
|
if hasattr(builtins, "_"):
|
|
del builtins._
|
|
|
|
dh(None)
|
|
self.assertEqual(out.getvalue(), "")
|
|
self.assert_(not hasattr(builtins, "_"))
|
|
dh(42)
|
|
self.assertEqual(out.getvalue(), "42\n")
|
|
self.assertEqual(builtins._, 42)
|
|
|
|
del sys.stdout
|
|
self.assertRaises(RuntimeError, dh, 42)
|
|
|
|
def test_lost_displayhook(self):
|
|
del sys.displayhook
|
|
code = compile("42", "<string>", "single")
|
|
self.assertRaises(RuntimeError, eval, code)
|
|
|
|
def test_custom_displayhook(self):
|
|
def baddisplayhook(obj):
|
|
raise ValueError
|
|
sys.displayhook = baddisplayhook
|
|
code = compile("42", "<string>", "single")
|
|
self.assertRaises(ValueError, eval, code)
|
|
|
|
def test_original_excepthook(self):
|
|
err = io.StringIO()
|
|
sys.stderr = err
|
|
|
|
eh = sys.__excepthook__
|
|
|
|
self.assertRaises(TypeError, eh)
|
|
try:
|
|
raise ValueError(42)
|
|
except ValueError as exc:
|
|
eh(*sys.exc_info())
|
|
|
|
self.assert_(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_exit(self):
|
|
self.assertRaises(TypeError, sys.exit, 42, 42)
|
|
|
|
# call without argument
|
|
try:
|
|
sys.exit(0)
|
|
except SystemExit as exc:
|
|
self.assertEquals(exc.code, 0)
|
|
except:
|
|
self.fail("wrong exception")
|
|
else:
|
|
self.fail("no exception")
|
|
|
|
# call with tuple argument with one entry
|
|
# entry will be unpacked
|
|
try:
|
|
sys.exit(42)
|
|
except SystemExit as exc:
|
|
self.assertEquals(exc.code, 42)
|
|
except:
|
|
self.fail("wrong exception")
|
|
else:
|
|
self.fail("no exception")
|
|
|
|
# call with integer argument
|
|
try:
|
|
sys.exit((42,))
|
|
except SystemExit as exc:
|
|
self.assertEquals(exc.code, 42)
|
|
except:
|
|
self.fail("wrong exception")
|
|
else:
|
|
self.fail("no exception")
|
|
|
|
# call with string argument
|
|
try:
|
|
sys.exit("exit")
|
|
except SystemExit as exc:
|
|
self.assertEquals(exc.code, "exit")
|
|
except:
|
|
self.fail("wrong exception")
|
|
else:
|
|
self.fail("no exception")
|
|
|
|
# call with tuple argument with two entries
|
|
try:
|
|
sys.exit((17, 23))
|
|
except SystemExit as exc:
|
|
self.assertEquals(exc.code, (17, 23))
|
|
except:
|
|
self.fail("wrong exception")
|
|
else:
|
|
self.fail("no exception")
|
|
|
|
# test that the exit machinery handles SystemExits properly
|
|
import subprocess
|
|
rc = subprocess.call([sys.executable, "-c",
|
|
"raise SystemExit(47)"])
|
|
self.assertEqual(rc, 47)
|
|
|
|
def test_getdefaultencoding(self):
|
|
self.assertRaises(TypeError, sys.getdefaultencoding, 42)
|
|
# can't check more than the type, as the user might have changed it
|
|
self.assert_(isinstance(sys.getdefaultencoding(), str))
|
|
|
|
# testing sys.settrace() is done in test_trace.py
|
|
# testing sys.setprofile() is done in test_profile.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.assertEquals(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)
|
|
|
|
def test_getwindowsversion(self):
|
|
if hasattr(sys, "getwindowsversion"):
|
|
v = sys.getwindowsversion()
|
|
self.assert_(isinstance(v, tuple))
|
|
self.assertEqual(len(v), 5)
|
|
self.assert_(isinstance(v[0], int))
|
|
self.assert_(isinstance(v[1], int))
|
|
self.assert_(isinstance(v[2], int))
|
|
self.assert_(isinstance(v[3], int))
|
|
self.assert_(isinstance(v[4], str))
|
|
|
|
def test_dlopenflags(self):
|
|
if hasattr(sys, "setdlopenflags"):
|
|
self.assert_(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):
|
|
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.assert_(isinstance(sys.gettotalrefcount(), int))
|
|
|
|
def test_getframe(self):
|
|
self.assertRaises(TypeError, sys._getframe, 42, 42)
|
|
self.assertRaises(ValueError, sys._getframe, 2000000000)
|
|
self.assert_(
|
|
SysModuleTest.test_getframe.__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.
|
|
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.assert_(main_id in d)
|
|
self.assert_(thread_id in d)
|
|
|
|
# Verify that the captured main-thread frame is _this_ frame.
|
|
frame = d.pop(main_id)
|
|
self.assert_(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.assert_(sourceline in ["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.assert_(0 in d)
|
|
self.assert_(d[0] is sys._getframe())
|
|
|
|
def test_attributes(self):
|
|
self.assert_(isinstance(sys.api_version, int))
|
|
self.assert_(isinstance(sys.argv, list))
|
|
self.assert_(sys.byteorder in ("little", "big"))
|
|
self.assert_(isinstance(sys.builtin_module_names, tuple))
|
|
self.assert_(isinstance(sys.copyright, str))
|
|
self.assert_(isinstance(sys.exec_prefix, str))
|
|
self.assert_(isinstance(sys.executable, str))
|
|
self.assertEqual(len(sys.float_info), 11)
|
|
self.assertEqual(sys.float_info.radix, 2)
|
|
self.assert_(isinstance(sys.hexversion, int))
|
|
self.assert_(isinstance(sys.maxsize, int))
|
|
self.assert_(isinstance(sys.maxunicode, int))
|
|
self.assert_(isinstance(sys.platform, str))
|
|
self.assert_(isinstance(sys.prefix, str))
|
|
self.assert_(isinstance(sys.version, str))
|
|
vi = sys.version_info
|
|
self.assert_(isinstance(vi, tuple))
|
|
self.assertEqual(len(vi), 5)
|
|
self.assert_(isinstance(vi[0], int))
|
|
self.assert_(isinstance(vi[1], int))
|
|
self.assert_(isinstance(vi[2], int))
|
|
self.assert_(vi[3] in ("alpha", "beta", "candidate", "final"))
|
|
self.assert_(isinstance(vi[4], int))
|
|
|
|
def test_43581(self):
|
|
# Can't use sys.stdout, as this is a cStringIO object when
|
|
# the test runs under regrtest.
|
|
self.assertEqual(sys.__stdout__.encoding, sys.__stderr__.encoding)
|
|
|
|
def test_intern(self):
|
|
self.assertRaises(TypeError, sys.intern)
|
|
s = "never interned before"
|
|
self.assert_(sys.intern(s) is s)
|
|
s2 = s.swapcase().swapcase()
|
|
self.assert_(sys.intern(s2) is s)
|
|
|
|
# Subclasses of string can't be interned, because they
|
|
# provide too much opportunity for insane things to happen.
|
|
# We don't want them in the interned dict and if they aren't
|
|
# actually interned, we don't want to create the appearance
|
|
# that they are by allowing intern() to succeeed.
|
|
class S(str):
|
|
def __hash__(self):
|
|
return 123
|
|
|
|
self.assertRaises(TypeError, sys.intern, S("abc"))
|
|
|
|
|
|
def test_sys_flags(self):
|
|
self.failUnless(sys.flags)
|
|
attrs = ("debug", "division_warning",
|
|
"inspect", "interactive", "optimize", "dont_write_bytecode",
|
|
"no_site", "ignore_environment", "verbose",
|
|
"bytes_warning")
|
|
for attr in attrs:
|
|
self.assert_(hasattr(sys.flags, attr), attr)
|
|
self.assertEqual(type(getattr(sys.flags, attr)), int, attr)
|
|
self.assert_(repr(sys.flags))
|
|
|
|
def test_clear_type_cache(self):
|
|
sys._clear_type_cache()
|
|
|
|
def test_compact_freelists(self):
|
|
sys._compact_freelists()
|
|
r = sys._compact_freelists()
|
|
## freed blocks shouldn't change
|
|
#self.assertEqual(r[0][2], 0)
|
|
## fill freelists
|
|
#ints = list(range(10000))
|
|
#floats = [float(i) for i in ints]
|
|
#del ints
|
|
#del floats
|
|
## should free more than 100 blocks
|
|
#r = sys._compact_freelists()
|
|
#self.assert_(r[0][1] > 100, r[0][1])
|
|
#self.assert_(r[0][2] > 100, r[0][2])
|
|
|
|
def test_ioencoding(self):
|
|
import subprocess,os
|
|
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(chr(0xa2))'],
|
|
stdout = subprocess.PIPE, env=env)
|
|
out = p.stdout.read()
|
|
self.assertEqual(out, "\xa2\n".encode("cp424"))
|
|
|
|
env["PYTHONIOENCODING"] = "ascii:replace"
|
|
p = subprocess.Popen([sys.executable, "-c", 'print(chr(0xa2))'],
|
|
stdout = subprocess.PIPE, env=env)
|
|
out = p.stdout.read().strip()
|
|
self.assertEqual(out, b'?')
|
|
|
|
|
|
class SizeofTest(unittest.TestCase):
|
|
|
|
def setUp(self):
|
|
import struct
|
|
self.i = len(struct.pack('i', 0))
|
|
self.l = len(struct.pack('l', 0))
|
|
self.p = len(struct.pack('P', 0))
|
|
self.headersize = self.l + self.p
|
|
if hasattr(sys, "gettotalrefcount"):
|
|
self.headersize += 2 * self.p
|
|
self.file = open(test.support.TESTFN, 'wb')
|
|
|
|
def tearDown(self):
|
|
self.file.close()
|
|
test.support.unlink(test.support.TESTFN)
|
|
|
|
def check_sizeof(self, o, size):
|
|
result = sys.getsizeof(o)
|
|
msg = 'wrong size for %s: got %d, expected %d' \
|
|
% (type(o), result, size)
|
|
self.assertEqual(result, size, msg)
|
|
|
|
def align(self, value):
|
|
mod = value % self.p
|
|
if mod != 0:
|
|
return value - mod + self.p
|
|
else:
|
|
return value
|
|
|
|
def test_align(self):
|
|
self.assertEqual(self.align(0) % self.p, 0)
|
|
self.assertEqual(self.align(1) % self.p, 0)
|
|
self.assertEqual(self.align(3) % self.p, 0)
|
|
self.assertEqual(self.align(4) % self.p, 0)
|
|
self.assertEqual(self.align(7) % self.p, 0)
|
|
self.assertEqual(self.align(8) % self.p, 0)
|
|
self.assertEqual(self.align(9) % self.p, 0)
|
|
|
|
def test_standardtypes(self):
|
|
i = self.i
|
|
l = self.l
|
|
p = self.p
|
|
h = self.headersize
|
|
# bool
|
|
self.check_sizeof(True, h + 2*l)
|
|
# bytearray
|
|
self.check_sizeof(bytes(), h + self.align(i) + l + p)
|
|
# cell
|
|
def get_cell():
|
|
x = 42
|
|
def inner():
|
|
return x
|
|
return inner
|
|
self.check_sizeof(get_cell().__closure__[0], h + p)
|
|
# code XXX wrong size
|
|
# self.check_sizeof(get_cell().__code__, h + self.align(4*i) + 8*p +\
|
|
# self.align(i) + 2*p)
|
|
# complex
|
|
self.check_sizeof(complex(0,1), h + 2*8)
|
|
# enumerate
|
|
self.check_sizeof(enumerate([]), h + l + 3*p)
|
|
# reverse
|
|
self.check_sizeof(reversed(''), h + l + p )
|
|
# file XXX wrong size
|
|
#self.check_sizeof(self.file, h + 4*p + self.align(2*i) + 4*p +\
|
|
# self.align(3*i) + 3*p + self.align(i))
|
|
# float
|
|
self.check_sizeof(float(0), h + 8)
|
|
# function
|
|
def func(): pass
|
|
self.check_sizeof(func, h + 11 * p)
|
|
class c():
|
|
@staticmethod
|
|
def foo():
|
|
pass
|
|
@classmethod
|
|
def bar(cls):
|
|
pass
|
|
# staticmethod
|
|
self.check_sizeof(foo, h + l)
|
|
# classmethod
|
|
self.check_sizeof(bar, h + l)
|
|
# generator
|
|
def get_gen(): yield 1
|
|
self.check_sizeof(get_gen(), h + p + self.align(i) + 2*p)
|
|
# builtin_function_or_method
|
|
self.check_sizeof(abs, h + 3*p)
|
|
# module
|
|
self.check_sizeof(unittest, h + p)
|
|
# range
|
|
self.check_sizeof(range(1), h + 3*p)
|
|
# slice
|
|
self.check_sizeof(slice(0), h + 3*p)
|
|
|
|
h += l
|
|
# new-style class
|
|
class class_newstyle(object):
|
|
def method():
|
|
pass
|
|
# type (PyTypeObject + PyNumberMethods + PyMappingMethods +
|
|
# PySequenceMethods + PyBufferProcs)
|
|
# XXX wrong size
|
|
# len_typeobject = p + 2*l + 15*p + l + 4*p + l + 9*p + l + 11*p
|
|
# self.check_sizeof(class_newstyle,
|
|
# h + len_typeobject + 42*p + 10*p + 3*p + 6*p)
|
|
|
|
|
|
def test_specialtypes(self):
|
|
i = self.i
|
|
l = self.l
|
|
p = self.p
|
|
h = self.headersize
|
|
# dict
|
|
self.check_sizeof({}, h + 3*l + 3*p + 8*(l + 2*p))
|
|
longdict = {1:1, 2:2, 3:3, 4:4, 5:5, 6:6, 7:7, 8:8}
|
|
self.check_sizeof(longdict, h + 3*l + 3*p + 8*(l + 2*p) + 16*(l + 2*p))
|
|
# list
|
|
self.check_sizeof([], h + l + p + l)
|
|
self.check_sizeof([1, 2, 3], h + l + p + l + 3*l)
|
|
|
|
h += l
|
|
# long
|
|
self.check_sizeof(0, h + self.align(2))
|
|
self.check_sizeof(1, h + self.align(2))
|
|
self.check_sizeof(-1, h + self.align(2))
|
|
self.check_sizeof(32768, h + self.align(2) + 2)
|
|
self.check_sizeof(32768*32768-1, h + self.align(2) + 2)
|
|
self.check_sizeof(32768*32768, h + self.align(2) + 4)
|
|
# XXX add Unicode support
|
|
# self.check_sizeof('', h + l + self.align(i + 1))
|
|
# self.check_sizeof('abc', h + l + self.align(i + 1) + 3)
|
|
|
|
|
|
def test_main():
|
|
test.support.run_unittest(SysModuleTest, SizeofTest)
|
|
|
|
if __name__ == "__main__":
|
|
test_main()
|