mirror of
https://github.com/python/cpython.git
synced 2025-10-31 05:31:20 +00:00
735 lines
27 KiB
Python
735 lines
27 KiB
Python
import builtins
|
|
import imp
|
|
from importlib.test.import_ import test_relative_imports
|
|
from importlib.test.import_ import util as importlib_util
|
|
import importlib
|
|
import marshal
|
|
import os
|
|
import platform
|
|
import py_compile
|
|
import random
|
|
import stat
|
|
import sys
|
|
import unittest
|
|
import textwrap
|
|
import errno
|
|
|
|
from test.support import (
|
|
EnvironmentVarGuard, TESTFN, check_warnings, forget, is_jython,
|
|
make_legacy_pyc, rmtree, run_unittest, swap_attr, swap_item, temp_umask,
|
|
unlink, unload, create_empty_file)
|
|
from test import script_helper
|
|
|
|
|
|
def remove_files(name):
|
|
for f in (name + ".py",
|
|
name + ".pyc",
|
|
name + ".pyo",
|
|
name + ".pyw",
|
|
name + "$py.class"):
|
|
unlink(f)
|
|
rmtree('__pycache__')
|
|
|
|
|
|
class ImportTests(unittest.TestCase):
|
|
|
|
def setUp(self):
|
|
remove_files(TESTFN)
|
|
importlib.invalidate_caches()
|
|
|
|
def tearDown(self):
|
|
unload(TESTFN)
|
|
|
|
setUp = tearDown
|
|
|
|
def test_case_sensitivity(self):
|
|
# Brief digression to test that import is case-sensitive: if we got
|
|
# this far, we know for sure that "random" exists.
|
|
with self.assertRaises(ImportError):
|
|
import RAnDoM
|
|
|
|
def test_double_const(self):
|
|
# Another brief digression to test the accuracy of manifest float
|
|
# constants.
|
|
from test import double_const # don't blink -- that *was* the test
|
|
|
|
def test_import(self):
|
|
def test_with_extension(ext):
|
|
# The extension is normally ".py", perhaps ".pyw".
|
|
source = TESTFN + ext
|
|
pyo = TESTFN + ".pyo"
|
|
if is_jython:
|
|
pyc = TESTFN + "$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]
|
|
importlib.invalidate_caches()
|
|
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:
|
|
forget(TESTFN)
|
|
unlink(source)
|
|
unlink(pyc)
|
|
unlink(pyo)
|
|
|
|
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_creation_mode(self):
|
|
mask = 0o022
|
|
with temp_umask(mask):
|
|
sys.path.insert(0, os.curdir)
|
|
try:
|
|
fname = TESTFN + os.extsep + "py"
|
|
create_empty_file(fname)
|
|
fn = imp.cache_from_source(fname)
|
|
unlink(fn)
|
|
importlib.invalidate_caches()
|
|
__import__(TESTFN)
|
|
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)
|
|
# Check that the umask is respected, and the executable bits
|
|
# aren't set.
|
|
self.assertEqual(stat.S_IMODE(s.st_mode), 0o666 & ~mask)
|
|
finally:
|
|
del sys.path[0]
|
|
remove_files(TESTFN)
|
|
unload(TESTFN)
|
|
|
|
def test_imp_module(self):
|
|
# Verify that the imp module can correctly load and find .py files
|
|
# 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")
|
|
self.addCleanup(x[0].close)
|
|
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_bug7732(self):
|
|
source = TESTFN + '.py'
|
|
os.mkdir(source)
|
|
try:
|
|
self.assertRaisesRegex(ImportError, '^No module',
|
|
imp.find_module, TESTFN, ["."])
|
|
finally:
|
|
os.rmdir(source)
|
|
|
|
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(']')
|
|
|
|
try:
|
|
# Compile & remove .py file; we only need .pyc (or .pyo).
|
|
# Bytecode must be relocated from the PEP 3147 bytecode-only location.
|
|
py_compile.compile(filename)
|
|
finally:
|
|
unlink(filename)
|
|
|
|
# Need to be able to load from current dir.
|
|
sys.path.append('')
|
|
importlib.invalidate_caches()
|
|
|
|
try:
|
|
make_legacy_pyc(filename)
|
|
# This used to crash.
|
|
exec('import ' + module)
|
|
finally:
|
|
# 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_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]
|
|
make_legacy_pyc(source)
|
|
importlib.invalidate_caches()
|
|
mod = __import__(TESTFN)
|
|
base, ext = os.path.splitext(mod.__file__)
|
|
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)
|
|
encoding = sys.getfilesystemencoding()
|
|
try:
|
|
path.encode(encoding)
|
|
except UnicodeEncodeError:
|
|
self.skipTest('path is not encodable to {}'.format(encoding))
|
|
with self.assertRaises(ImportError) as c:
|
|
__import__(path)
|
|
|
|
def test_import_in_del_does_not_crash(self):
|
|
# Issue 4236
|
|
testfn = script_helper.make_script('', TESTFN, textwrap.dedent("""\
|
|
import sys
|
|
class C:
|
|
def __del__(self):
|
|
import imp
|
|
sys.argv.insert(0, C())
|
|
"""))
|
|
script_helper.assert_python_ok(testfn)
|
|
|
|
def test_timestamp_overflow(self):
|
|
# A modification timestamp larger than 2**32 should not be a problem
|
|
# when importing a module (issue #11235).
|
|
sys.path.insert(0, os.curdir)
|
|
try:
|
|
source = TESTFN + ".py"
|
|
compiled = imp.cache_from_source(source)
|
|
with open(source, 'w') as f:
|
|
pass
|
|
try:
|
|
os.utime(source, (2 ** 33 - 5, 2 ** 33 - 5))
|
|
except OverflowError:
|
|
self.skipTest("cannot set modification time to large integer")
|
|
except OSError as e:
|
|
if e.errno != getattr(errno, 'EOVERFLOW', None):
|
|
raise
|
|
self.skipTest("cannot set modification time to large integer ({})".format(e))
|
|
__import__(TESTFN)
|
|
# The pyc file was created.
|
|
os.stat(compiled)
|
|
finally:
|
|
del sys.path[0]
|
|
remove_files(TESTFN)
|
|
|
|
@unittest.skipUnless(sys.platform == "win32", "Windows specific")
|
|
def test_extension_import_fail(self):
|
|
# Issue 1559549 added `name` and `path` attributes to ImportError
|
|
# in order to provide better detail. Issue 10854 implemented those
|
|
# attributes on import failures of extensions on Windows.
|
|
debug = True if sys.executable[-6:] == "_d.exe" else False
|
|
pkg_name = "extension"
|
|
pkg_file = pkg_name + "{}".format("_d.pyd" if debug else ".pyd")
|
|
with open(pkg_file, "w"): pass
|
|
try:
|
|
with self.assertRaises(ImportError) as err:
|
|
import extension
|
|
self.assertEqual(err.exception.name, pkg_name)
|
|
# The path we get back has the dot-slash, e.g., ".\\extension.pyd"
|
|
self.assertEqual(os.path.relpath(err.exception.path), pkg_file)
|
|
finally:
|
|
unlink(pkg_file)
|
|
|
|
|
|
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 = imp.cache_from_source(file_name)
|
|
|
|
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)
|
|
importlib.invalidate_caches()
|
|
|
|
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)
|
|
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)
|
|
pyc_file = make_legacy_pyc(self.file_name)
|
|
importlib.invalidate_caches()
|
|
mod = self.import_module()
|
|
self.assertEqual(mod.module_filename, pyc_file)
|
|
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(12)
|
|
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):
|
|
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(TypeError, check_relative)
|
|
|
|
def test_absolute_import_without_future(self):
|
|
# If explicit relative import syntax is used, then do not try
|
|
# to perform an absolute import in the face of failure.
|
|
# Issue #7902.
|
|
with self.assertRaises(ImportError):
|
|
from .os import sep
|
|
self.fail("explicit relative import triggered an "
|
|
"implicit absolute import")
|
|
|
|
|
|
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)
|
|
|
|
|
|
class PycacheTests(unittest.TestCase):
|
|
# Test the various PEP 3147 related behaviors.
|
|
|
|
tag = imp.get_tag()
|
|
|
|
def _clean(self):
|
|
forget(TESTFN)
|
|
rmtree('__pycache__')
|
|
unlink(self.source)
|
|
|
|
def setUp(self):
|
|
self.source = TESTFN + '.py'
|
|
self._clean()
|
|
with open(self.source, 'w') as fp:
|
|
print('# This is a test file written by test_import.py', file=fp)
|
|
sys.path.insert(0, os.curdir)
|
|
importlib.invalidate_caches()
|
|
|
|
def tearDown(self):
|
|
assert sys.path[0] == os.curdir, 'Unexpected sys.path[0]'
|
|
del sys.path[0]
|
|
self._clean()
|
|
|
|
def test_import_pyc_path(self):
|
|
self.assertFalse(os.path.exists('__pycache__'))
|
|
__import__(TESTFN)
|
|
self.assertTrue(os.path.exists('__pycache__'))
|
|
self.assertTrue(os.path.exists(os.path.join(
|
|
'__pycache__', '{}.{}.py{}'.format(
|
|
TESTFN, self.tag, __debug__ and 'c' or 'o'))))
|
|
|
|
@unittest.skipUnless(os.name == 'posix',
|
|
"test meaningful only on posix systems")
|
|
@unittest.skipIf(hasattr(os, 'geteuid') and os.geteuid() == 0,
|
|
"due to varying filesystem permission semantics (issue #11956)")
|
|
def test_unwritable_directory(self):
|
|
# When the umask causes the new __pycache__ directory to be
|
|
# unwritable, the import still succeeds but no .pyc file is written.
|
|
with temp_umask(0o222):
|
|
__import__(TESTFN)
|
|
self.assertTrue(os.path.exists('__pycache__'))
|
|
self.assertFalse(os.path.exists(os.path.join(
|
|
'__pycache__', '{}.{}.pyc'.format(TESTFN, self.tag))))
|
|
|
|
def test_missing_source(self):
|
|
# With PEP 3147 cache layout, removing the source but leaving the pyc
|
|
# file does not satisfy the import.
|
|
__import__(TESTFN)
|
|
pyc_file = imp.cache_from_source(self.source)
|
|
self.assertTrue(os.path.exists(pyc_file))
|
|
os.remove(self.source)
|
|
forget(TESTFN)
|
|
self.assertRaises(ImportError, __import__, TESTFN)
|
|
|
|
def test_missing_source_legacy(self):
|
|
# Like test_missing_source() except that for backward compatibility,
|
|
# when the pyc file lives where the py file would have been (and named
|
|
# without the tag), it is importable. The __file__ of the imported
|
|
# module is the pyc location.
|
|
__import__(TESTFN)
|
|
# pyc_file gets removed in _clean() via tearDown().
|
|
pyc_file = make_legacy_pyc(self.source)
|
|
os.remove(self.source)
|
|
unload(TESTFN)
|
|
importlib.invalidate_caches()
|
|
m = __import__(TESTFN)
|
|
self.assertEqual(m.__file__,
|
|
os.path.join(os.curdir, os.path.relpath(pyc_file)))
|
|
|
|
def test___cached__(self):
|
|
# Modules now also have an __cached__ that points to the pyc file.
|
|
m = __import__(TESTFN)
|
|
pyc_file = imp.cache_from_source(TESTFN + '.py')
|
|
self.assertEqual(m.__cached__, os.path.join(os.curdir, pyc_file))
|
|
|
|
def test___cached___legacy_pyc(self):
|
|
# Like test___cached__() except that for backward compatibility,
|
|
# when the pyc file lives where the py file would have been (and named
|
|
# without the tag), it is importable. The __cached__ of the imported
|
|
# module is the pyc location.
|
|
__import__(TESTFN)
|
|
# pyc_file gets removed in _clean() via tearDown().
|
|
pyc_file = make_legacy_pyc(self.source)
|
|
os.remove(self.source)
|
|
unload(TESTFN)
|
|
importlib.invalidate_caches()
|
|
m = __import__(TESTFN)
|
|
self.assertEqual(m.__cached__,
|
|
os.path.join(os.curdir, os.path.relpath(pyc_file)))
|
|
|
|
def test_package___cached__(self):
|
|
# Like test___cached__ but for packages.
|
|
def cleanup():
|
|
rmtree('pep3147')
|
|
os.mkdir('pep3147')
|
|
self.addCleanup(cleanup)
|
|
# Touch the __init__.py
|
|
with open(os.path.join('pep3147', '__init__.py'), 'w'):
|
|
pass
|
|
with open(os.path.join('pep3147', 'foo.py'), 'w'):
|
|
pass
|
|
unload('pep3147.foo')
|
|
unload('pep3147')
|
|
importlib.invalidate_caches()
|
|
m = __import__('pep3147.foo')
|
|
init_pyc = imp.cache_from_source(
|
|
os.path.join('pep3147', '__init__.py'))
|
|
self.assertEqual(m.__cached__, os.path.join(os.curdir, init_pyc))
|
|
foo_pyc = imp.cache_from_source(os.path.join('pep3147', 'foo.py'))
|
|
self.assertEqual(sys.modules['pep3147.foo'].__cached__,
|
|
os.path.join(os.curdir, foo_pyc))
|
|
|
|
def test_package___cached___from_pyc(self):
|
|
# Like test___cached__ but ensuring __cached__ when imported from a
|
|
# PEP 3147 pyc file.
|
|
def cleanup():
|
|
rmtree('pep3147')
|
|
os.mkdir('pep3147')
|
|
self.addCleanup(cleanup)
|
|
unload('pep3147.foo')
|
|
unload('pep3147')
|
|
# Touch the __init__.py
|
|
with open(os.path.join('pep3147', '__init__.py'), 'w'):
|
|
pass
|
|
with open(os.path.join('pep3147', 'foo.py'), 'w'):
|
|
pass
|
|
importlib.invalidate_caches()
|
|
m = __import__('pep3147.foo')
|
|
unload('pep3147.foo')
|
|
unload('pep3147')
|
|
importlib.invalidate_caches()
|
|
m = __import__('pep3147.foo')
|
|
init_pyc = imp.cache_from_source(
|
|
os.path.join('pep3147', '__init__.py'))
|
|
self.assertEqual(m.__cached__, os.path.join(os.curdir, init_pyc))
|
|
foo_pyc = imp.cache_from_source(os.path.join('pep3147', 'foo.py'))
|
|
self.assertEqual(sys.modules['pep3147.foo'].__cached__,
|
|
os.path.join(os.curdir, foo_pyc))
|
|
|
|
def test_recompute_pyc_same_second(self):
|
|
# Even when the source file doesn't change timestamp, a change in
|
|
# source size is enough to trigger recomputation of the pyc file.
|
|
__import__(TESTFN)
|
|
unload(TESTFN)
|
|
with open(self.source, 'a') as fp:
|
|
print("x = 5", file=fp)
|
|
m = __import__(TESTFN)
|
|
self.assertEqual(m.x, 5)
|
|
|
|
|
|
class RelativeImportFromImportlibTests(test_relative_imports.RelativeImports):
|
|
|
|
def setUp(self):
|
|
self._importlib_util_flag = importlib_util.using___import__
|
|
importlib_util.using___import__ = True
|
|
|
|
def tearDown(self):
|
|
importlib_util.using___import__ = self._importlib_util_flag
|
|
|
|
|
|
def test_main(verbose=None):
|
|
run_unittest(ImportTests, PycacheTests,
|
|
PycRewritingTests, PathsTests, RelativeImportTests,
|
|
OverridingImportBuiltinTests,
|
|
RelativeImportFromImportlibTests)
|
|
|
|
|
|
if __name__ == '__main__':
|
|
# Test needs to be a package, so we can do relative imports.
|
|
from test.test_import import test_main
|
|
test_main()
|