mirror of
https://github.com/python/cpython.git
synced 2024-11-26 03:14:27 +08:00
8fbddf15ea
svn+ssh://pythondev@svn.python.org/python/trunk ........ r79030 | florent.xicluna | 2010-03-17 20:05:04 +0100 (mer, 17 mar 2010) | 2 lines Cleanup in test_import and test_coding. ........ r79031 | florent.xicluna | 2010-03-17 20:15:56 +0100 (mer, 17 mar 2010) | 2 lines Cleanup some test cases using check_warnings and check_py3k_warnings. ........ r79032 | florent.xicluna | 2010-03-17 21:05:11 +0100 (mer, 17 mar 2010) | 2 lines Fix and check cgi module deprecation warnings. Revert an unwanted rename in test_import. ........
487 lines
18 KiB
Python
487 lines
18 KiB
Python
import builtins
|
|
import imp
|
|
import marshal
|
|
import os
|
|
import py_compile
|
|
import random
|
|
import shutil
|
|
import stat
|
|
import sys
|
|
import unittest
|
|
from test.support import (unlink, TESTFN, unload, run_unittest, is_jython,
|
|
check_warnings, EnvironmentVarGuard, swap_attr, swap_item)
|
|
|
|
|
|
def remove_files(name):
|
|
for f in (name + ".py",
|
|
name + ".pyc",
|
|
name + ".pyo",
|
|
name + ".pyw",
|
|
name + "$py.class"):
|
|
unlink(f)
|
|
|
|
|
|
class ImportTests(unittest.TestCase):
|
|
|
|
def tearDown(self):
|
|
unload(TESTFN)
|
|
setUp = tearDown
|
|
|
|
def test_case_sensitivity(self):
|
|
# Brief digression to test that import is case-sensitive: if we got
|
|
# this far, we know for sure that "random" exists.
|
|
try:
|
|
import RAnDoM
|
|
except ImportError:
|
|
pass
|
|
else:
|
|
self.fail("import of RAnDoM should have failed (case mismatch)")
|
|
|
|
def test_double_const(self):
|
|
# Another brief digression to test the accuracy of manifest float
|
|
# constants.
|
|
from test import double_const # don't blink -- that *was* the test
|
|
|
|
def test_import(self):
|
|
def test_with_extension(ext):
|
|
# The extension is normally ".py", perhaps ".pyw".
|
|
source = TESTFN + ext
|
|
pyo = TESTFN + ".pyo"
|
|
if is_jython:
|
|
pyc = TESTFN + "$py.class"
|
|
else:
|
|
pyc = TESTFN + ".pyc"
|
|
|
|
with open(source, "w") as f:
|
|
print("# This tests Python's ability to import a", ext, "file.",
|
|
file=f)
|
|
a = random.randrange(1000)
|
|
b = random.randrange(1000)
|
|
print("a =", a, file=f)
|
|
print("b =", b, file=f)
|
|
|
|
if TESTFN in sys.modules:
|
|
del sys.modules[TESTFN]
|
|
try:
|
|
try:
|
|
mod = __import__(TESTFN)
|
|
except ImportError as err:
|
|
self.fail("import from %s failed: %s" % (ext, err))
|
|
|
|
self.assertEqual(mod.a, a,
|
|
"module loaded (%s) but contents invalid" % mod)
|
|
self.assertEqual(mod.b, b,
|
|
"module loaded (%s) but contents invalid" % mod)
|
|
finally:
|
|
unlink(source)
|
|
unlink(pyc)
|
|
unlink(pyo)
|
|
unload(TESTFN)
|
|
|
|
sys.path.insert(0, os.curdir)
|
|
try:
|
|
test_with_extension(".py")
|
|
if sys.platform.startswith("win"):
|
|
for ext in [".PY", ".Py", ".pY", ".pyw", ".PYW", ".pYw"]:
|
|
test_with_extension(ext)
|
|
finally:
|
|
del sys.path[0]
|
|
|
|
@unittest.skipUnless(os.name == 'posix', "test meaningful only on posix systems")
|
|
def test_execute_bit_not_copied(self):
|
|
# Issue 6070: under posix .pyc files got their execute bit set if
|
|
# the .py file had the execute bit set, but they aren't executable.
|
|
oldmask = os.umask(0o022)
|
|
sys.path.insert(0, os.curdir)
|
|
try:
|
|
fname = TESTFN + os.extsep + "py"
|
|
f = open(fname, 'w').close()
|
|
os.chmod(fname, (stat.S_IRUSR | stat.S_IRGRP | stat.S_IROTH |
|
|
stat.S_IXUSR | stat.S_IXGRP | stat.S_IXOTH))
|
|
__import__(TESTFN)
|
|
fn = fname + 'c'
|
|
if not os.path.exists(fn):
|
|
fn = fname + 'o'
|
|
if not os.path.exists(fn):
|
|
self.fail("__import__ did not result in creation of "
|
|
"either a .pyc or .pyo file")
|
|
s = os.stat(fn)
|
|
self.assertEqual(stat.S_IMODE(s.st_mode),
|
|
stat.S_IRUSR | stat.S_IRGRP | stat.S_IROTH)
|
|
finally:
|
|
os.umask(oldmask)
|
|
remove_files(TESTFN)
|
|
unload(TESTFN)
|
|
del sys.path[0]
|
|
|
|
def test_imp_module(self):
|
|
# Verify that the imp module can correctly load and find .py files
|
|
import imp, os
|
|
# XXX (ncoghlan): It would be nice to use support.CleanImport
|
|
# here, but that breaks because the os module registers some
|
|
# handlers in copy_reg on import. Since CleanImport doesn't
|
|
# revert that registration, the module is left in a broken
|
|
# state after reversion. Reinitialising the module contents
|
|
# and just reverting os.environ to its previous state is an OK
|
|
# workaround
|
|
orig_path = os.path
|
|
orig_getenv = os.getenv
|
|
with EnvironmentVarGuard():
|
|
x = imp.find_module("os")
|
|
new_os = imp.load_module("os", *x)
|
|
self.assertIs(os, new_os)
|
|
self.assertIs(orig_path, new_os.path)
|
|
self.assertIsNot(orig_getenv, new_os.getenv)
|
|
|
|
def test_module_with_large_stack(self, module='longlist'):
|
|
# Regression test for http://bugs.python.org/issue561858.
|
|
filename = module + '.py'
|
|
|
|
# Create a file with a list of 65000 elements.
|
|
with open(filename, 'w+') as f:
|
|
f.write('d = [\n')
|
|
for i in range(65000):
|
|
f.write('"",\n')
|
|
f.write(']')
|
|
|
|
# Compile & remove .py file, we only need .pyc (or .pyo).
|
|
with open(filename, 'r') as f:
|
|
py_compile.compile(filename)
|
|
unlink(filename)
|
|
|
|
# Need to be able to load from current dir.
|
|
sys.path.append('')
|
|
|
|
# This used to crash.
|
|
exec('import ' + module)
|
|
|
|
# Cleanup.
|
|
del sys.path[-1]
|
|
unlink(filename + 'c')
|
|
unlink(filename + 'o')
|
|
|
|
def test_failing_import_sticks(self):
|
|
source = TESTFN + ".py"
|
|
with open(source, "w") as f:
|
|
print("a = 1/0", file=f)
|
|
|
|
# New in 2.4, we shouldn't be able to import that no matter how often
|
|
# we try.
|
|
sys.path.insert(0, os.curdir)
|
|
if TESTFN in sys.modules:
|
|
del sys.modules[TESTFN]
|
|
try:
|
|
for i in [1, 2, 3]:
|
|
self.assertRaises(ZeroDivisionError, __import__, TESTFN)
|
|
self.assertNotIn(TESTFN, sys.modules,
|
|
"damaged module in sys.modules on %i try" % i)
|
|
finally:
|
|
del sys.path[0]
|
|
remove_files(TESTFN)
|
|
|
|
def test_import_name_binding(self):
|
|
# import x.y.z binds x in the current namespace
|
|
import test as x
|
|
import test.support
|
|
self.assertTrue(x is test, x.__name__)
|
|
self.assertTrue(hasattr(test.support, "__file__"))
|
|
|
|
# import x.y.z as w binds z as w
|
|
import test.support as y
|
|
self.assertTrue(y is test.support, y.__name__)
|
|
|
|
def test_import_initless_directory_warning(self):
|
|
with warnings.catch_warnings():
|
|
# Just a random non-package directory we always expect to be
|
|
# somewhere in sys.path...
|
|
warnings.simplefilter('error', ImportWarning)
|
|
self.assertRaises(ImportWarning, __import__, "site-packages")
|
|
|
|
def test_failing_reload(self):
|
|
# A failing reload should leave the module object in sys.modules.
|
|
source = TESTFN + os.extsep + "py"
|
|
with open(source, "w") as f:
|
|
f.write("a = 1\nb=2\n")
|
|
|
|
sys.path.insert(0, os.curdir)
|
|
try:
|
|
mod = __import__(TESTFN)
|
|
self.assertIn(TESTFN, sys.modules)
|
|
self.assertEqual(mod.a, 1, "module has wrong attribute values")
|
|
self.assertEqual(mod.b, 2, "module has wrong attribute values")
|
|
|
|
# On WinXP, just replacing the .py file wasn't enough to
|
|
# convince reload() to reparse it. Maybe the timestamp didn't
|
|
# move enough. We force it to get reparsed by removing the
|
|
# compiled file too.
|
|
remove_files(TESTFN)
|
|
|
|
# Now damage the module.
|
|
with open(source, "w") as f:
|
|
f.write("a = 10\nb=20//0\n")
|
|
|
|
self.assertRaises(ZeroDivisionError, imp.reload, mod)
|
|
# But we still expect the module to be in sys.modules.
|
|
mod = sys.modules.get(TESTFN)
|
|
self.assertIsNot(mod, None, "expected module to be in sys.modules")
|
|
|
|
# We should have replaced a w/ 10, but the old b value should
|
|
# stick.
|
|
self.assertEqual(mod.a, 10, "module has wrong attribute values")
|
|
self.assertEqual(mod.b, 2, "module has wrong attribute values")
|
|
|
|
finally:
|
|
del sys.path[0]
|
|
remove_files(TESTFN)
|
|
unload(TESTFN)
|
|
|
|
def test_file_to_source(self):
|
|
# check if __file__ points to the source file where available
|
|
source = TESTFN + ".py"
|
|
with open(source, "w") as f:
|
|
f.write("test = None\n")
|
|
|
|
sys.path.insert(0, os.curdir)
|
|
try:
|
|
mod = __import__(TESTFN)
|
|
self.assertTrue(mod.__file__.endswith('.py'))
|
|
os.remove(source)
|
|
del sys.modules[TESTFN]
|
|
mod = __import__(TESTFN)
|
|
ext = mod.__file__[-4:]
|
|
self.assertIn(ext, ('.pyc', '.pyo'))
|
|
finally:
|
|
del sys.path[0]
|
|
remove_files(TESTFN)
|
|
if TESTFN in sys.modules:
|
|
del sys.modules[TESTFN]
|
|
|
|
def test_import_name_binding(self):
|
|
# import x.y.z binds x in the current namespace.
|
|
import test as x
|
|
import test.support
|
|
self.assertIs(x, test, x.__name__)
|
|
self.assertTrue(hasattr(test.support, "__file__"))
|
|
|
|
# import x.y.z as w binds z as w.
|
|
import test.support as y
|
|
self.assertIs(y, test.support, y.__name__)
|
|
|
|
def test_import_initless_directory_warning(self):
|
|
with check_warnings(('', ImportWarning)):
|
|
# Just a random non-package directory we always expect to be
|
|
# somewhere in sys.path...
|
|
self.assertRaises(ImportError, __import__, "site-packages")
|
|
|
|
def test_import_by_filename(self):
|
|
path = os.path.abspath(TESTFN)
|
|
with self.assertRaises(ImportError) as c:
|
|
__import__(path)
|
|
self.assertEqual("Import by filename is not supported.",
|
|
c.exception.args[0])
|
|
|
|
|
|
class PycRewritingTests(unittest.TestCase):
|
|
# Test that the `co_filename` attribute on code objects always points
|
|
# to the right file, even when various things happen (e.g. both the .py
|
|
# and the .pyc file are renamed).
|
|
|
|
module_name = "unlikely_module_name"
|
|
module_source = """
|
|
import sys
|
|
code_filename = sys._getframe().f_code.co_filename
|
|
module_filename = __file__
|
|
constant = 1
|
|
def func():
|
|
pass
|
|
func_filename = func.__code__.co_filename
|
|
"""
|
|
dir_name = os.path.abspath(TESTFN)
|
|
file_name = os.path.join(dir_name, module_name) + os.extsep + "py"
|
|
compiled_name = file_name + ("c" if __debug__ else "o")
|
|
|
|
def setUp(self):
|
|
self.sys_path = sys.path[:]
|
|
self.orig_module = sys.modules.pop(self.module_name, None)
|
|
os.mkdir(self.dir_name)
|
|
with open(self.file_name, "w") as f:
|
|
f.write(self.module_source)
|
|
sys.path.insert(0, self.dir_name)
|
|
|
|
def tearDown(self):
|
|
sys.path[:] = self.sys_path
|
|
if self.orig_module is not None:
|
|
sys.modules[self.module_name] = self.orig_module
|
|
else:
|
|
unload(self.module_name)
|
|
unlink(self.file_name)
|
|
unlink(self.compiled_name)
|
|
if os.path.exists(self.dir_name):
|
|
shutil.rmtree(self.dir_name)
|
|
|
|
def import_module(self):
|
|
ns = globals()
|
|
__import__(self.module_name, ns, ns)
|
|
return sys.modules[self.module_name]
|
|
|
|
def test_basics(self):
|
|
mod = self.import_module()
|
|
self.assertEqual(mod.module_filename, self.file_name)
|
|
self.assertEqual(mod.code_filename, self.file_name)
|
|
self.assertEqual(mod.func_filename, self.file_name)
|
|
del sys.modules[self.module_name]
|
|
mod = self.import_module()
|
|
self.assertEqual(mod.module_filename, self.file_name)
|
|
self.assertEqual(mod.code_filename, self.file_name)
|
|
self.assertEqual(mod.func_filename, self.file_name)
|
|
|
|
def test_incorrect_code_name(self):
|
|
py_compile.compile(self.file_name, dfile="another_module.py")
|
|
mod = self.import_module()
|
|
self.assertEqual(mod.module_filename, self.file_name)
|
|
self.assertEqual(mod.code_filename, self.file_name)
|
|
self.assertEqual(mod.func_filename, self.file_name)
|
|
|
|
def test_module_without_source(self):
|
|
target = "another_module.py"
|
|
py_compile.compile(self.file_name, dfile=target)
|
|
os.remove(self.file_name)
|
|
mod = self.import_module()
|
|
self.assertEqual(mod.module_filename, self.compiled_name)
|
|
self.assertEqual(mod.code_filename, target)
|
|
self.assertEqual(mod.func_filename, target)
|
|
|
|
def test_foreign_code(self):
|
|
py_compile.compile(self.file_name)
|
|
with open(self.compiled_name, "rb") as f:
|
|
header = f.read(8)
|
|
code = marshal.load(f)
|
|
constants = list(code.co_consts)
|
|
foreign_code = test_main.__code__
|
|
pos = constants.index(1)
|
|
constants[pos] = foreign_code
|
|
code = type(code)(code.co_argcount, code.co_kwonlyargcount,
|
|
code.co_nlocals, code.co_stacksize,
|
|
code.co_flags, code.co_code, tuple(constants),
|
|
code.co_names, code.co_varnames, code.co_filename,
|
|
code.co_name, code.co_firstlineno, code.co_lnotab,
|
|
code.co_freevars, code.co_cellvars)
|
|
with open(self.compiled_name, "wb") as f:
|
|
f.write(header)
|
|
marshal.dump(code, f)
|
|
mod = self.import_module()
|
|
self.assertEqual(mod.constant.co_filename, foreign_code.co_filename)
|
|
|
|
|
|
class PathsTests(unittest.TestCase):
|
|
SAMPLES = ('test', 'test\u00e4\u00f6\u00fc\u00df', 'test\u00e9\u00e8',
|
|
'test\u00b0\u00b3\u00b2')
|
|
path = TESTFN
|
|
|
|
def setUp(self):
|
|
os.mkdir(self.path)
|
|
self.syspath = sys.path[:]
|
|
|
|
def tearDown(self):
|
|
shutil.rmtree(self.path)
|
|
sys.path[:] = self.syspath
|
|
|
|
# Regression test for http://bugs.python.org/issue1293.
|
|
def test_trailing_slash(self):
|
|
with open(os.path.join(self.path, 'test_trailing_slash.py'), 'w') as f:
|
|
f.write("testdata = 'test_trailing_slash'")
|
|
sys.path.append(self.path+'/')
|
|
mod = __import__("test_trailing_slash")
|
|
self.assertEqual(mod.testdata, 'test_trailing_slash')
|
|
unload("test_trailing_slash")
|
|
|
|
# Regression test for http://bugs.python.org/issue3677.
|
|
def _test_UNC_path(self):
|
|
with open(os.path.join(self.path, 'test_trailing_slash.py'), 'w') as f:
|
|
f.write("testdata = 'test_trailing_slash'")
|
|
# Create the UNC path, like \\myhost\c$\foo\bar.
|
|
path = os.path.abspath(self.path)
|
|
import socket
|
|
hn = socket.gethostname()
|
|
drive = path[0]
|
|
unc = "\\\\%s\\%s$"%(hn, drive)
|
|
unc += path[2:]
|
|
sys.path.append(path)
|
|
mod = __import__("test_trailing_slash")
|
|
self.assertEqual(mod.testdata, 'test_trailing_slash')
|
|
unload("test_trailing_slash")
|
|
|
|
if sys.platform == "win32":
|
|
test_UNC_path = _test_UNC_path
|
|
|
|
|
|
class RelativeImportTests(unittest.TestCase):
|
|
|
|
def tearDown(self):
|
|
unload("test.relimport")
|
|
setUp = tearDown
|
|
|
|
def test_relimport_star(self):
|
|
# This will import * from .test_import.
|
|
from . import relimport
|
|
self.assertTrue(hasattr(relimport, "RelativeImportTests"))
|
|
|
|
def test_issue3221(self):
|
|
# Note for mergers: the 'absolute' tests from the 2.x branch
|
|
# are missing in Py3k because implicit relative imports are
|
|
# a thing of the past
|
|
#
|
|
# Regression test for http://bugs.python.org/issue3221.
|
|
def check_relative():
|
|
exec("from . import relimport", ns)
|
|
|
|
# Check relative import OK with __package__ and __name__ correct
|
|
ns = dict(__package__='test', __name__='test.notarealmodule')
|
|
check_relative()
|
|
|
|
# Check relative import OK with only __name__ wrong
|
|
ns = dict(__package__='test', __name__='notarealpkg.notarealmodule')
|
|
check_relative()
|
|
|
|
# Check relative import fails with only __package__ wrong
|
|
ns = dict(__package__='foo', __name__='test.notarealmodule')
|
|
self.assertRaises(SystemError, check_relative)
|
|
|
|
# Check relative import fails with __package__ and __name__ wrong
|
|
ns = dict(__package__='foo', __name__='notarealpkg.notarealmodule')
|
|
self.assertRaises(SystemError, check_relative)
|
|
|
|
# Check relative import fails with package set to a non-string
|
|
ns = dict(__package__=object())
|
|
self.assertRaises(ValueError, check_relative)
|
|
|
|
|
|
class OverridingImportBuiltinTests(unittest.TestCase):
|
|
def test_override_builtin(self):
|
|
# Test that overriding builtins.__import__ can bypass sys.modules.
|
|
import os
|
|
|
|
def foo():
|
|
import os
|
|
return os
|
|
self.assertEqual(foo(), os) # Quick sanity check.
|
|
|
|
with swap_attr(builtins, "__import__", lambda *x: 5):
|
|
self.assertEqual(foo(), 5)
|
|
|
|
# Test what happens when we shadow __import__ in globals(); this
|
|
# currently does not impact the import process, but if this changes,
|
|
# other code will need to change, so keep this test as a tripwire.
|
|
with swap_item(globals(), "__import__", lambda *x: 5):
|
|
self.assertEqual(foo(), os)
|
|
|
|
|
|
def test_main(verbose=None):
|
|
run_unittest(ImportTests, PycRewritingTests, PathsTests, RelativeImportTests,
|
|
OverridingImportBuiltinTests)
|
|
|
|
if __name__ == '__main__':
|
|
# Test needs to be a package, so we can do relative imports.
|
|
from test.test_import import test_main
|
|
test_main()
|