mirror of https://github.com/python/cpython
440 lines
16 KiB
Python
440 lines
16 KiB
Python
import unittest
|
|
import os
|
|
import stat
|
|
import random
|
|
import shutil
|
|
import sys
|
|
import py_compile
|
|
import warnings
|
|
import marshal
|
|
from test.test_support import (unlink, TESTFN, unload, run_unittest,
|
|
check_warnings, TestFailed)
|
|
|
|
|
|
def remove_files(name):
|
|
for f in (name + os.extsep + "py",
|
|
name + os.extsep + "pyc",
|
|
name + os.extsep + "pyo",
|
|
name + os.extsep + "pyw",
|
|
name + "$py.class"):
|
|
if os.path.exists(f):
|
|
os.remove(f)
|
|
|
|
|
|
class ImportTest(unittest.TestCase):
|
|
|
|
def testCaseSensitivity(self):
|
|
# Brief digression to test that import is case-sensitive: if we got this
|
|
# far, we know for sure that "random" exists.
|
|
try:
|
|
import RAnDoM
|
|
except ImportError:
|
|
pass
|
|
else:
|
|
self.fail("import of RAnDoM should have failed (case mismatch)")
|
|
|
|
def testDoubleConst(self):
|
|
# Another brief digression to test the accuracy of manifest float constants.
|
|
from test import double_const # don't blink -- that *was* the test
|
|
|
|
def testImport(self):
|
|
def test_with_extension(ext):
|
|
# ext normally ".py"; perhaps ".pyw"
|
|
source = TESTFN + ext
|
|
pyo = TESTFN + os.extsep + "pyo"
|
|
if sys.platform.startswith('java'):
|
|
pyc = TESTFN + "$py.class"
|
|
else:
|
|
pyc = TESTFN + os.extsep + "pyc"
|
|
|
|
f = open(source, "w")
|
|
print >> f, "# This tests Python's ability to import a", ext, "file."
|
|
a = random.randrange(1000)
|
|
b = random.randrange(1000)
|
|
print >> f, "a =", a
|
|
print >> f, "b =", b
|
|
f.close()
|
|
|
|
try:
|
|
try:
|
|
mod = __import__(TESTFN)
|
|
except ImportError, err:
|
|
self.fail("import from %s failed: %s" % (ext, err))
|
|
|
|
self.assertEquals(mod.a, a,
|
|
"module loaded (%s) but contents invalid" % mod)
|
|
self.assertEquals(mod.b, b,
|
|
"module loaded (%s) but contents invalid" % mod)
|
|
finally:
|
|
os.unlink(source)
|
|
|
|
try:
|
|
try:
|
|
reload(mod)
|
|
except ImportError, err:
|
|
self.fail("import from .pyc/.pyo failed: %s" % err)
|
|
finally:
|
|
try:
|
|
os.unlink(pyc)
|
|
except OSError:
|
|
pass
|
|
try:
|
|
os.unlink(pyo)
|
|
except OSError:
|
|
pass
|
|
del sys.modules[TESTFN]
|
|
|
|
sys.path.insert(0, os.curdir)
|
|
try:
|
|
test_with_extension(os.extsep + "py")
|
|
if sys.platform.startswith("win"):
|
|
for ext in ".PY", ".Py", ".pY", ".pyw", ".PYW", ".pYw":
|
|
test_with_extension(ext)
|
|
finally:
|
|
del sys.path[0]
|
|
|
|
if os.name == 'posix':
|
|
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(022)
|
|
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): raise TestFailed("__import__ did "
|
|
"not result in creation of either a .pyc or .pyo file")
|
|
s = os.stat(fn)
|
|
self.assertEquals(stat.S_IMODE(s.st_mode),
|
|
stat.S_IRUSR | stat.S_IRGRP | stat.S_IROTH)
|
|
finally:
|
|
os.umask(oldmask)
|
|
remove_files(TESTFN)
|
|
if TESTFN in sys.modules: del sys.modules[TESTFN]
|
|
del sys.path[0]
|
|
|
|
def testImpModule(self):
|
|
# Verify that the imp module can correctly load and find .py files
|
|
import imp
|
|
x = imp.find_module("os")
|
|
os = imp.load_module("os", *x)
|
|
|
|
def test_module_with_large_stack(self, module='longlist'):
|
|
# create module w/list of 65000 elements to test bug #561858
|
|
filename = module + os.extsep + 'py'
|
|
|
|
# create a file with a list of 65000 elements
|
|
f = open(filename, 'w+')
|
|
f.write('d = [\n')
|
|
for i in range(65000):
|
|
f.write('"",\n')
|
|
f.write(']')
|
|
f.close()
|
|
|
|
# compile & remove .py file, we only need .pyc (or .pyo)
|
|
f = open(filename, 'r')
|
|
py_compile.compile(filename)
|
|
f.close()
|
|
os.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]
|
|
for ext in 'pyc', 'pyo':
|
|
fname = module + os.extsep + ext
|
|
if os.path.exists(fname):
|
|
os.unlink(fname)
|
|
|
|
def test_failing_import_sticks(self):
|
|
source = TESTFN + os.extsep + "py"
|
|
f = open(source, "w")
|
|
print >> f, "a = 1/0"
|
|
f.close()
|
|
|
|
# New in 2.4, we shouldn't be able to import that no matter how often
|
|
# we try.
|
|
sys.path.insert(0, os.curdir)
|
|
try:
|
|
for i in 1, 2, 3:
|
|
try:
|
|
mod = __import__(TESTFN)
|
|
except ZeroDivisionError:
|
|
if TESTFN in sys.modules:
|
|
self.fail("damaged module in sys.modules on %i. try" % i)
|
|
else:
|
|
self.fail("was able to import a damaged module on %i. try" % i)
|
|
finally:
|
|
sys.path.pop(0)
|
|
remove_files(TESTFN)
|
|
|
|
def test_failing_reload(self):
|
|
# A failing reload should leave the module object in sys.modules.
|
|
source = TESTFN + os.extsep + "py"
|
|
f = open(source, "w")
|
|
print >> f, "a = 1"
|
|
print >> f, "b = 2"
|
|
f.close()
|
|
|
|
sys.path.insert(0, os.curdir)
|
|
try:
|
|
mod = __import__(TESTFN)
|
|
self.assert_(TESTFN in sys.modules, "expected module in sys.modules")
|
|
self.assertEquals(mod.a, 1, "module has wrong attribute values")
|
|
self.assertEquals(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.
|
|
f = open(source, "w")
|
|
print >> f, "a = 10"
|
|
print >> f, "b = 20//0"
|
|
f.close()
|
|
|
|
self.assertRaises(ZeroDivisionError, reload, mod)
|
|
|
|
# But we still expect the module to be in sys.modules.
|
|
mod = sys.modules.get(TESTFN)
|
|
self.failIf(mod is None, "expected module to still be in sys.modules")
|
|
|
|
# We should have replaced a w/ 10, but the old b value should
|
|
# stick.
|
|
self.assertEquals(mod.a, 10, "module has wrong attribute values")
|
|
self.assertEquals(mod.b, 2, "module has wrong attribute values")
|
|
|
|
finally:
|
|
sys.path.pop(0)
|
|
remove_files(TESTFN)
|
|
if TESTFN in sys.modules:
|
|
del sys.modules[TESTFN]
|
|
|
|
def test_infinite_reload(self):
|
|
# Bug #742342 reports that Python segfaults (infinite recursion in C)
|
|
# when faced with self-recursive reload()ing.
|
|
|
|
sys.path.insert(0, os.path.dirname(__file__))
|
|
try:
|
|
import infinite_reload
|
|
finally:
|
|
sys.path.pop(0)
|
|
|
|
def test_import_name_binding(self):
|
|
# import x.y.z binds x in the current namespace
|
|
import test as x
|
|
import test.test_support
|
|
self.assert_(x is test, x.__name__)
|
|
self.assert_(hasattr(test.test_support, "__file__"))
|
|
|
|
# import x.y.z as w binds z as w
|
|
import test.test_support as y
|
|
self.assert_(y is test.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_importbyfilename(self):
|
|
path = os.path.abspath(TESTFN)
|
|
try:
|
|
__import__(path)
|
|
except ImportError, err:
|
|
self.assertEqual("Import by filename is not supported.",
|
|
err.args[0])
|
|
else:
|
|
self.fail("import by path didn't raise an exception")
|
|
|
|
|
|
class TestPycRewriting(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.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:
|
|
del sys.modules[self.module_name]
|
|
for file_name in self.file_name, self.compiled_name:
|
|
if os.path.exists(file_name):
|
|
os.remove(file_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.compiled_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.compiled_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.func_code
|
|
pos = constants.index(1)
|
|
constants[pos] = foreign_code
|
|
code = type(code)(code.co_argcount, 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):
|
|
path = TESTFN
|
|
|
|
def setUp(self):
|
|
os.mkdir(self.path)
|
|
self.syspath = sys.path[:]
|
|
|
|
def tearDown(self):
|
|
shutil.rmtree(self.path)
|
|
sys.path = self.syspath
|
|
|
|
# http://bugs.python.org/issue1293
|
|
def test_trailing_slash(self):
|
|
f = open(os.path.join(self.path, 'test_trailing_slash.py'), 'w')
|
|
f.write("testdata = 'test_trailing_slash'")
|
|
f.close()
|
|
sys.path.append(self.path+'/')
|
|
mod = __import__("test_trailing_slash")
|
|
self.assertEqual(mod.testdata, 'test_trailing_slash')
|
|
unload("test_trailing_slash")
|
|
|
|
class RelativeImport(unittest.TestCase):
|
|
def tearDown(self):
|
|
try:
|
|
del sys.modules["test.relimport"]
|
|
except:
|
|
pass
|
|
|
|
def test_relimport_star(self):
|
|
# This will import * from .test_import.
|
|
from . import relimport
|
|
self.assertTrue(hasattr(relimport, "RelativeImport"))
|
|
|
|
def test_issue3221(self):
|
|
def check_absolute():
|
|
exec "from os import path" in ns
|
|
def check_relative():
|
|
exec "from . import relimport" in ns
|
|
# Check both OK with __package__ and __name__ correct
|
|
ns = dict(__package__='test', __name__='test.notarealmodule')
|
|
check_absolute()
|
|
check_relative()
|
|
# Check both OK with only __name__ wrong
|
|
ns = dict(__package__='test', __name__='notarealpkg.notarealmodule')
|
|
check_absolute()
|
|
check_relative()
|
|
# Check relative fails with only __package__ wrong
|
|
ns = dict(__package__='foo', __name__='test.notarealmodule')
|
|
with check_warnings() as w:
|
|
check_absolute()
|
|
self.assert_('foo' in str(w.message))
|
|
self.assertEqual(w.category, RuntimeWarning)
|
|
self.assertRaises(SystemError, check_relative)
|
|
# Check relative fails with __package__ and __name__ wrong
|
|
ns = dict(__package__='foo', __name__='notarealpkg.notarealmodule')
|
|
with check_warnings() as w:
|
|
check_absolute()
|
|
self.assert_('foo' in str(w.message))
|
|
self.assertEqual(w.category, RuntimeWarning)
|
|
self.assertRaises(SystemError, check_relative)
|
|
# Check both fail with package set to a non-string
|
|
ns = dict(__package__=object())
|
|
self.assertRaises(ValueError, check_absolute)
|
|
self.assertRaises(ValueError, check_relative)
|
|
|
|
def test_absolute_import_without_future(self):
|
|
# If absolute import syntax is used, then do not try to perform
|
|
# a relative import in the face of failure.
|
|
# Issue #7902.
|
|
try:
|
|
from .os import sep
|
|
except ImportError:
|
|
pass
|
|
else:
|
|
self.fail("explicit relative import triggered an "
|
|
"implicit relative import")
|
|
|
|
|
|
def test_main(verbose=None):
|
|
run_unittest(ImportTest, TestPycRewriting, PathsTests, RelativeImport)
|
|
|
|
if __name__ == '__main__':
|
|
# test needs to be a package, so we can do relative import
|
|
from test.test_import import test_main
|
|
test_main()
|