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test_util.py
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# Copyright (C) 2008, 2009 Michael Trier (mtrier@gmail.com) and contributors
#
# This module is part of GitPython and is released under the
# 3-Clause BSD License: https://opensource.org/license/bsd-3-clause/
importast
fromdatetimeimportdatetime
importos
importpathlib
importpickle
importstat
importsubprocess
importsys
importtempfile
importtime
fromunittestimportSkipTest,mock
importddt
importpytest
fromgit.cmdimportdashify
fromgit.objects.utilimport (
altz_to_utctz_str,
from_timestamp,
parse_date,
tzoffset,
utctz_to_altz,
verify_utctz,
)
fromgit.utilimport (
Actor,
BlockingLockFile,
IterableList,
LockFile,
cygpath,
decygpath,
is_cygwin_git,
get_user_id,
remove_password_if_present,
rmtree,
)
fromtest.libimportTestBase,with_rw_repo
@pytest.fixture
defpermission_error_tmpdir(tmp_path):
"""Fixture to test permissions errors in situations where they are not overcome."""
td=tmp_path/"testdir"
td.mkdir()
(td/"x").touch()
# Set up PermissionError on Windows, where we can't delete read-only files.
(td/"x").chmod(stat.S_IRUSR)
# Set up PermissionError on Unix, where non-root users can't delete files in
# read-only directories. (Tests that rely on this and assert that rmtree raises
# PermissionError will fail if they are run as root.)
td.chmod(stat.S_IRUSR|stat.S_IXUSR)
yieldtd
classTestRmtree:
"""Tests for :func:`git.util.rmtree`."""
deftest_deletes_nested_dir_with_files(self,tmp_path):
td=tmp_path/"testdir"
fordintd,td/"q",td/"s":
d.mkdir()
forfin (
td/"p",
td/"q"/"w",
td/"q"/"x",
td/"r",
td/"s"/"y",
td/"s"/"z",
):
f.touch()
try:
rmtree(td)
exceptSkipTestasex:
pytest.fail(f"rmtree unexpectedly attempts skip:{ex!r}")
assertnottd.exists()
@pytest.mark.skipif(
sys.platform=="cygwin",
reason="Cygwin can't set the permissions that make the test meaningful.",
)
deftest_deletes_dir_with_readonly_files(self,tmp_path):
# Automatically works on Unix, but requires special handling on Windows.
# Not to be confused with what permission_error_tmpdir sets up (see below).
td=tmp_path/"testdir"
fordintd,td/"sub":
d.mkdir()
forfintd/"x",td/"sub"/"y":
f.touch()
f.chmod(0)
try:
rmtree(td)
exceptSkipTestasex:
self.fail(f"rmtree unexpectedly attempts skip:{ex!r}")
assertnottd.exists()
@pytest.mark.skipif(
sys.platform=="cygwin",
reason="Cygwin can't set the permissions that make the test meaningful.",
)
deftest_avoids_changing_permissions_outside_tree(self,tmp_path):
# Automatically works on Windows, but on Unix requires either special handling
# or refraining from attempting to fix PermissionError by making chmod calls.
dir1=tmp_path/"dir1"
dir1.mkdir()
(dir1/"file").touch()
(dir1/"file").chmod(stat.S_IRUSR)
old_mode= (dir1/"file").stat().st_mode
dir2=tmp_path/"dir2"
dir2.mkdir()
(dir2/"symlink").symlink_to(dir1/"file")
dir2.chmod(stat.S_IRUSR|stat.S_IXUSR)
try:
rmtree(dir2)
exceptPermissionError:
pass# On Unix, dir2 is not writable, so dir2/symlink may not be deleted.
exceptSkipTestasex:
self.fail(f"rmtree unexpectedly attempts skip:{ex!r}")
new_mode= (dir1/"file").stat().st_mode
assertold_mode==new_mode,f"Should stay{old_mode:#o}, became{new_mode:#o}."
def_patch_for_wrapping_test(self,mocker,hide_windows_known_errors):
# Access the module through sys.modules so it is unambiguous which module's
# attribute we patch: the original git.util, not git.index.util even though
# git.index.util "replaces" git.util and is what "import git.util" gives us.
mocker.patch.object(sys.modules["git.util"],"HIDE_WINDOWS_KNOWN_ERRORS",hide_windows_known_errors)
# Mock out common chmod functions to simulate PermissionError the callback can't
# fix. (We leave the corresponding lchmod functions alone. If they're used, it's
# more important we detect any failures from inadequate compatibility checks.)
mocker.patch.object(os,"chmod")
mocker.patch.object(pathlib.Path,"chmod")
@pytest.mark.skipif(
sys.platform!="win32",
reason="PermissionError is only ever wrapped on Windows",
)
deftest_wraps_perm_error_if_enabled(self,mocker,permission_error_tmpdir):
"""rmtree wraps PermissionError on Windows when HIDE_WINDOWS_KNOWN_ERRORS is
true."""
self._patch_for_wrapping_test(mocker,True)
withpytest.raises(SkipTest):
rmtree(permission_error_tmpdir)
@pytest.mark.skipif(
sys.platform=="cygwin",
reason="Cygwin can't set the permissions that make the test meaningful.",
)
@pytest.mark.parametrize(
"hide_windows_known_errors",
[
pytest.param(False),
pytest.param(True,marks=pytest.mark.skipif(sys.platform=="win32",reason="We would wrap on Windows")),
],
)
deftest_does_not_wrap_perm_error_unless_enabled(self,mocker,permission_error_tmpdir,hide_windows_known_errors):
"""rmtree does not wrap PermissionError on non-Windows systems or when
HIDE_WINDOWS_KNOWN_ERRORS is false."""
self._patch_for_wrapping_test(mocker,hide_windows_known_errors)
withpytest.raises(PermissionError):
try:
rmtree(permission_error_tmpdir)
exceptSkipTestasex:
pytest.fail(f"rmtree unexpectedly attempts skip:{ex!r}")
@pytest.mark.parametrize("hide_windows_known_errors", [False,True])
deftest_does_not_wrap_other_errors(self,tmp_path,mocker,hide_windows_known_errors):
# The file is deliberately never created.
file_not_found_tmpdir=tmp_path/"testdir"
self._patch_for_wrapping_test(mocker,hide_windows_known_errors)
withpytest.raises(FileNotFoundError):
try:
rmtree(file_not_found_tmpdir)
exceptSkipTestasex:
self.fail(f"rmtree unexpectedly attempts skip:{ex!r}")
classTestEnvParsing:
"""Tests for environment variable parsing logic in :mod:`git.util`."""
@staticmethod
def_run_parse(name,value):
command= [
sys.executable,
"-c",
f"from git.util import{name}; print(repr({name}))",
]
output=subprocess.check_output(
command,
env=NoneifvalueisNoneelsedict(os.environ,**{name:value}),
text=True,
)
returnast.literal_eval(output)
@pytest.mark.skipif(
sys.platform!="win32",
reason="These environment variables are only used on Windows.",
)
@pytest.mark.parametrize(
"env_var_value, expected_truth_value",
[
(None,True),# When the environment variable is unset.
("",False),
(" ",False),
("0",False),
("1",True),
("false",False),
("true",True),
("False",False),
("True",True),
("no",False),
("yes",True),
("NO",False),
("YES",True),
(" no ",False),
(" yes ",True),
],
)
@pytest.mark.parametrize(
"name",
[
"HIDE_WINDOWS_KNOWN_ERRORS",
"HIDE_WINDOWS_FREEZE_ERRORS",
],
)
deftest_env_vars_for_windows_tests(self,name,env_var_value,expected_truth_value):
actual_parsed_value=self._run_parse(name,env_var_value)
assertactual_parsed_valueisexpected_truth_value
def_xfail_param(*values,**xfail_kwargs):
"""Build a pytest.mark.parametrize parameter that carries an xfail mark."""
returnpytest.param(*values,marks=pytest.mark.xfail(**xfail_kwargs))
_norm_cygpath_pairs= (
(R"foo\bar","foo/bar"),
(R"foo/bar","foo/bar"),
(R"C:\Users","/cygdrive/c/Users"),
(R"C:\d/e","/cygdrive/c/d/e"),
("C:\\","/cygdrive/c/"),
(R"\\server\C$\Users","//server/C$/Users"),
(R"\\server\C$","//server/C$"),
("\\\\server\\c$\\","//server/c$/"),
(R"\\server\BAR/","//server/BAR/"),
(R"D:/Apps","/cygdrive/d/Apps"),
(R"D:/Apps\fOO","/cygdrive/d/Apps/fOO"),
(R"D:\Apps/123","/cygdrive/d/Apps/123"),
)
"""Path test cases for cygpath and decygpath, other than extended UNC paths."""
_unc_cygpath_pairs= (
(R"\\?\a:\com","/cygdrive/a/com"),
(R"\\?\a:/com","/cygdrive/a/com"),
(R"\\?\UNC\server\D$\Apps","//server/D$/Apps"),
)
"""Extended UNC path test cases for cygpath."""
_cygpath_ok_xfails= {
# From _norm_cygpath_pairs:
(R"C:\Users","/cygdrive/c/Users"):"/proc/cygdrive/c/Users",
(R"C:\d/e","/cygdrive/c/d/e"):"/proc/cygdrive/c/d/e",
("C:\\","/cygdrive/c/"):"/proc/cygdrive/c/",
(R"\\server\BAR/","//server/BAR/"):"//server/BAR",
(R"D:/Apps","/cygdrive/d/Apps"):"/proc/cygdrive/d/Apps",
(R"D:/Apps\fOO","/cygdrive/d/Apps/fOO"):"/proc/cygdrive/d/Apps/fOO",
(R"D:\Apps/123","/cygdrive/d/Apps/123"):"/proc/cygdrive/d/Apps/123",
# From _unc_cygpath_pairs:
(R"\\?\a:\com","/cygdrive/a/com"):"/proc/cygdrive/a/com",
(R"\\?\a:/com","/cygdrive/a/com"):"/proc/cygdrive/a/com",
}
"""Mapping of expected failures for the test_cygpath_ok test."""
_cygpath_ok_params= [
(
_xfail_param(*case,reason=f"Returns:{_cygpath_ok_xfails[case]!r}",raises=AssertionError)
ifcasein_cygpath_ok_xfails
elsecase
)
forcasein_norm_cygpath_pairs+_unc_cygpath_pairs
]
"""Parameter sets for the test_cygpath_ok test."""
@pytest.mark.skipif(sys.platform!="cygwin",reason="Paths specifically for Cygwin.")
classTestCygpath:
"""Tests for :func:`git.util.cygpath` and :func:`git.util.decygpath`."""
@pytest.mark.parametrize("wpath, cpath",_cygpath_ok_params)
deftest_cygpath_ok(self,wpath,cpath):
cwpath=cygpath(wpath)
assertcwpath==cpath,wpath
@pytest.mark.parametrize(
"wpath, cpath",
[
(R"./bar","bar"),
_xfail_param(R".\bar","bar",reason="Returns: './bar'",raises=AssertionError),
(R"../bar","../bar"),
(R"..\bar","../bar"),
(R"../bar/.\foo/../chu","../bar/chu"),
],
)
deftest_cygpath_norm_ok(self,wpath,cpath):
cwpath=cygpath(wpath)
assertcwpath== (cpathorwpath),wpath
@pytest.mark.parametrize(
"wpath",
[
R"C:",
R"C:Relative",
R"D:Apps\123",
R"D:Apps/123",
R"\\?\a:rel",
R"\\share\a:rel",
],
)
deftest_cygpath_invalids(self,wpath):
cwpath=cygpath(wpath)
assertcwpath==wpath.replace("\\","/"),wpath
@pytest.mark.parametrize("wpath, cpath",_norm_cygpath_pairs)
deftest_decygpath(self,wpath,cpath):
wcpath=decygpath(cpath)
assertwcpath==wpath.replace("/","\\"),cpath
classTestIsCygwinGit:
"""Tests for :func:`is_cygwin_git`"""
deftest_on_path_executable(self):
# Currently we assume tests run on Cygwin use Cygwin git. See #533 and #1455 for background.
ifsys.platform=="cygwin":
assertis_cygwin_git("git")
else:
assertnotis_cygwin_git("git")
deftest_none_executable(self):
assertnotis_cygwin_git(None)
deftest_with_missing_uname(self):
"""Test for handling when `uname` isn't in the same directory as `git`"""
assertnotis_cygwin_git("/bogus_path/git")
class_Member:
"""A member of an IterableList."""
__slots__= ("name",)
def__init__(self,name):
self.name=name
def__repr__(self):
returnf"{type(self).__name__}({self.name!r})"
@ddt.ddt
classTestUtils(TestBase):
"""Tests for most utilities in :mod:`git.util`."""
deftest_it_should_dashify(self):
self.assertEqual("this-is-my-argument",dashify("this_is_my_argument"))
self.assertEqual("foo",dashify("foo"))
deftest_lock_file(self):
withtempfile.TemporaryDirectory()astdir:
my_file=os.path.join(tdir,"my-lock-file")
lock_file=LockFile(my_file)
assertnotlock_file._has_lock()
# Release lock we don't have - fine.
lock_file._release_lock()
# Get lock.
lock_file._obtain_lock_or_raise()
assertlock_file._has_lock()
# Concurrent access.
other_lock_file=LockFile(my_file)
assertnotother_lock_file._has_lock()
self.assertRaises(IOError,other_lock_file._obtain_lock_or_raise)
lock_file._release_lock()
assertnotlock_file._has_lock()
other_lock_file._obtain_lock_or_raise()
self.assertRaises(IOError,lock_file._obtain_lock_or_raise)
# Auto-release on destruction.
delother_lock_file
lock_file._obtain_lock_or_raise()
lock_file._release_lock()
deftest_blocking_lock_file(self):
withtempfile.TemporaryDirectory()astdir:
my_file=os.path.join(tdir,"my-lock-file")
lock_file=BlockingLockFile(my_file)
lock_file._obtain_lock()
# Next one waits for the lock.
start=time.time()
wait_time=0.1
wait_lock=BlockingLockFile(my_file,0.05,wait_time)
self.assertRaises(IOError,wait_lock._obtain_lock)
elapsed=time.time()-start
extra_time=0.02
ifsys.platformin {"win32","cygwin"}:
extra_time*=6# Without this, we get indeterministic failures on Windows.
elifsys.platform=="darwin":
extra_time*=18# The situation on macOS is similar, but with more delay.
self.assertLess(elapsed,wait_time+extra_time)
deftest_user_id(self):
self.assertIn("@",get_user_id())
deftest_parse_date(self):
# parse_date(from_timestamp()) must return the tuple unchanged.
fortimestamp,offsetin (
(1522827734,-7200),
(1522827734,0),
(1522827734,+3600),
):
self.assertEqual(parse_date(from_timestamp(timestamp,offset)), (timestamp,offset))
# Test all supported formats.
defassert_rval(rval,veri_time,offset=0):
self.assertEqual(len(rval),2)
self.assertIsInstance(rval[0],int)
self.assertIsInstance(rval[1],int)
self.assertEqual(rval[0],veri_time)
self.assertEqual(rval[1],offset)
# Now that we are here, test our conversion functions as well.
utctz=altz_to_utctz_str(offset)
self.assertIsInstance(utctz,str)
self.assertEqual(utctz_to_altz(verify_utctz(utctz)),offset)
# END assert rval utility
rfc= ("Thu, 07 Apr 2005 22:13:11 +0000",0)
iso= ("2005-04-07T22:13:11 -0200",7200)
iso2= ("2005-04-07 22:13:11 +0400",-14400)
iso3= ("2005.04.07 22:13:11 -0000",0)
alt= ("04/07/2005 22:13:11",0)
alt2= ("07.04.2005 22:13:11",0)
veri_time_utc=1112911991# The time this represents, in time since epoch, UTC.
fordate,offsetin (rfc,iso,iso2,iso3,alt,alt2):
assert_rval(parse_date(date),veri_time_utc,offset)
# END for each date type
# ...and failure.
self.assertRaises(ValueError,parse_date,datetime.now())# Non-aware datetime.
self.assertRaises(ValueError,parse_date,"invalid format")
self.assertRaises(ValueError,parse_date,"123456789 -02000")
self.assertRaises(ValueError,parse_date," 123456789 -0200")
deftest_actor(self):
forcrin (None,self.rorepo.config_reader()):
self.assertIsInstance(Actor.committer(cr),Actor)
self.assertIsInstance(Actor.author(cr),Actor)
# END ensure config reader is handled
@with_rw_repo("HEAD")
@mock.patch("getpass.getuser")
deftest_actor_get_uid_laziness_not_called(self,rwrepo,mock_get_uid):
withrwrepo.config_writer()ascw:
cw.set_value("user","name","John Config Doe")
cw.set_value("user","email","jcdoe@example.com")
cr=rwrepo.config_reader()
committer=Actor.committer(cr)
author=Actor.author(cr)
self.assertEqual(committer.name,"John Config Doe")
self.assertEqual(committer.email,"jcdoe@example.com")
self.assertEqual(author.name,"John Config Doe")
self.assertEqual(author.email,"jcdoe@example.com")
self.assertFalse(mock_get_uid.called)
env= {
"GIT_AUTHOR_NAME":"John Doe",
"GIT_AUTHOR_EMAIL":"jdoe@example.com",
"GIT_COMMITTER_NAME":"Jane Doe",
"GIT_COMMITTER_EMAIL":"jane@example.com",
}
os.environ.update(env)
forcrin (None,rwrepo.config_reader()):
committer=Actor.committer(cr)
author=Actor.author(cr)
self.assertEqual(committer.name,"Jane Doe")
self.assertEqual(committer.email,"jane@example.com")
self.assertEqual(author.name,"John Doe")
self.assertEqual(author.email,"jdoe@example.com")
self.assertFalse(mock_get_uid.called)
@mock.patch("getpass.getuser")
deftest_actor_get_uid_laziness_called(self,mock_get_uid):
mock_get_uid.return_value="user"
committer=Actor.committer(None)
author=Actor.author(None)
# We can't test with `self.rorepo.config_reader()` here, as the UUID laziness
# depends on whether the user running the test has their global user.name config
# set.
self.assertEqual(committer.name,"user")
self.assertTrue(committer.email.startswith("user@"))
self.assertEqual(author.name,"user")
self.assertTrue(committer.email.startswith("user@"))
self.assertTrue(mock_get_uid.called)
self.assertEqual(mock_get_uid.call_count,2)
deftest_actor_from_string(self):
self.assertEqual(Actor._from_string("name"),Actor("name",None))
self.assertEqual(Actor._from_string("name <>"),Actor("name",""))
self.assertEqual(
Actor._from_string("name last another <some-very-long-email@example.com>"),
Actor("name last another","some-very-long-email@example.com"),
)
@ddt.data(
("name",""),
("name","prefix_"),
)
deftest_iterable_list(self,case):
name,prefix=case
ilist=IterableList(name,prefix)
name1="one"
name2="two"
m1=_Member(prefix+name1)
m2=_Member(prefix+name2)
ilist.extend((m1,m2))
self.assertEqual(len(ilist),2)
# Contains works with name and identity.
self.assertIn(name1,ilist)
self.assertIn(name2,ilist)
self.assertIn(m2,ilist)
self.assertIn(m2,ilist)
self.assertNotIn("invalid",ilist)
# With string index.
self.assertIs(ilist[name1],m1)
self.assertIs(ilist[name2],m2)
# With int index.
self.assertIs(ilist[0],m1)
self.assertIs(ilist[1],m2)
# With getattr.
self.assertIs(ilist.one,m1)
self.assertIs(ilist.two,m2)
# Test exceptions.
self.assertRaises(AttributeError,getattr,ilist,"something")
self.assertRaises(IndexError,ilist.__getitem__,"something")
# Delete by name and index.
self.assertRaises(IndexError,ilist.__delitem__,"something")
delilist[name2]
self.assertEqual(len(ilist),1)
self.assertNotIn(name2,ilist)
self.assertIn(name1,ilist)
delilist[0]
self.assertNotIn(name1,ilist)
self.assertEqual(len(ilist),0)
self.assertRaises(IndexError,ilist.__delitem__,0)
self.assertRaises(IndexError,ilist.__delitem__,"something")
deftest_utctz_to_altz(self):
self.assertEqual(utctz_to_altz("+0000"),0)
self.assertEqual(utctz_to_altz("+1400"),-(14*3600))
self.assertEqual(utctz_to_altz("-1200"),12*3600)
self.assertEqual(utctz_to_altz("+0001"),-60)
self.assertEqual(utctz_to_altz("+0530"),-(5*3600+1800))
self.assertEqual(utctz_to_altz("-0930"),9*3600+1800)
deftest_altz_to_utctz_str(self):
self.assertEqual(altz_to_utctz_str(0),"+0000")
self.assertEqual(altz_to_utctz_str(-(14*3600)),"+1400")
self.assertEqual(altz_to_utctz_str(12*3600),"-1200")
self.assertEqual(altz_to_utctz_str(-60),"+0001")
self.assertEqual(altz_to_utctz_str(-(5*3600+1800)),"+0530")
self.assertEqual(altz_to_utctz_str(9*3600+1800),"-0930")
self.assertEqual(altz_to_utctz_str(1),"+0000")
self.assertEqual(altz_to_utctz_str(59),"+0000")
self.assertEqual(altz_to_utctz_str(-1),"+0000")
self.assertEqual(altz_to_utctz_str(-59),"+0000")
deftest_from_timestamp(self):
# Correct offset: UTC+2, should return datetime + tzoffset(+2).
altz=utctz_to_altz("+0200")
self.assertEqual(
datetime.fromtimestamp(1522827734,tzoffset(altz)),
from_timestamp(1522827734,altz),
)
# Wrong offset: UTC+58, should return datetime + tzoffset(UTC).
altz=utctz_to_altz("+5800")
self.assertEqual(
datetime.fromtimestamp(1522827734,tzoffset(0)),
from_timestamp(1522827734,altz),
)
# Wrong offset: UTC-9000, should return datetime + tzoffset(UTC).
altz=utctz_to_altz("-9000")
self.assertEqual(
datetime.fromtimestamp(1522827734,tzoffset(0)),
from_timestamp(1522827734,altz),
)
deftest_pickle_tzoffset(self):
t1=tzoffset(555)
t2=pickle.loads(pickle.dumps(t1))
self.assertEqual(t1._offset,t2._offset)
self.assertEqual(t1._name,t2._name)
deftest_remove_password_from_command_line(self):
username="fakeuser"
password="fakepassword1234"
url_with_user_and_pass="https://{}:{}@fakerepo.example.com/testrepo".format(username,password)
url_with_user="https://{}@fakerepo.example.com/testrepo".format(username)
url_with_pass="https://:{}@fakerepo.example.com/testrepo".format(password)
url_without_user_or_pass="https://fakerepo.example.com/testrepo"
cmd_1= ["git","clone","-v",url_with_user_and_pass]
cmd_2= ["git","clone","-v",url_with_user]
cmd_3= ["git","clone","-v",url_with_pass]
cmd_4= ["git","clone","-v",url_without_user_or_pass]
cmd_5= ["no","url","in","this","one"]
redacted_cmd_1=remove_password_if_present(cmd_1)
assertusernamenotin" ".join(redacted_cmd_1)
assertpasswordnotin" ".join(redacted_cmd_1)
# Check that we use a copy.
assertcmd_1isnotredacted_cmd_1
assertusernamein" ".join(cmd_1)
assertpasswordin" ".join(cmd_1)
redacted_cmd_2=remove_password_if_present(cmd_2)
assertusernamenotin" ".join(redacted_cmd_2)
assertpasswordnotin" ".join(redacted_cmd_2)
redacted_cmd_3=remove_password_if_present(cmd_3)
assertusernamenotin" ".join(redacted_cmd_3)
assertpasswordnotin" ".join(redacted_cmd_3)
assertcmd_4==remove_password_if_present(cmd_4)
assertcmd_5==remove_password_if_present(cmd_5)