GitPython/git/test/test_util.py at master · uniphil/GitPython · GitHub

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# test_utils.py

# This module is part of GitPython and is released under

# the BSD License: http://www.opensource.org/licenses/bsd-license.php

import os

import tempfile

from lib import TestBase

from git.util import *

from git.objects.util import *

from git import *

from git.cmd import dashify

import time

from git.util import (

to_hex_sha,

to_bin_sha,

NULL_HEX_SHA,

LockedFD,

Actor,

IterableList

)

class TestIterableMember(object):

"""A member of an iterable list"""

__slots__ = ("name", "prefix_name")

def __init__(self, name):

self.name = name

self.prefix_name = name

class TestUtils(TestBase):

def setup(self):

self.testdict = {

"string": "42",

"int": 42,

"array": [ 42 ],

}

def test_it_should_dashify(self):

assert 'this-is-my-argument' == dashify('this_is_my_argument')

assert 'foo' == dashify('foo')

def test_lock_file(self):

my_file = tempfile.mktemp()

lock_file = LockFile(my_file)

assert not lock_file._has_lock()

# release lock we don't have - fine

lock_file._release_lock()

# get lock

lock_file._obtain_lock_or_raise()

assert lock_file._has_lock()

# concurrent access

other_lock_file = LockFile(my_file)

assert not other_lock_file._has_lock()

self.failUnlessRaises(IOError, other_lock_file._obtain_lock_or_raise)

lock_file._release_lock()

assert not lock_file._has_lock()

other_lock_file._obtain_lock_or_raise()

self.failUnlessRaises(IOError, lock_file._obtain_lock_or_raise)

# auto-release on destruction

del(other_lock_file)

lock_file._obtain_lock_or_raise()

lock_file._release_lock()

def test_blocking_lock_file(self):

my_file = tempfile.mktemp()

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.failUnlessRaises(IOError, wait_lock._obtain_lock)

elapsed = time.time() - start

assert elapsed <= wait_time + 0.02 # some extra time it may cost

def test_user_id(self):

assert '@' in get_user_id()

def test_parse_date(self):

# test all supported formats

def assert_rval(rval, veri_time, offset=0):

assert len(rval) == 2

assert isinstance(rval[0], int) and isinstance(rval[1], int)

assert rval[0] == veri_time

assert rval[1] == offset

# now that we are here, test our conversion functions as well

utctz = altz_to_utctz_str(offset)

assert isinstance(utctz, basestring)

assert 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 = 1112904791 # the time this represents

for date, offset in (rfc, iso, iso2, iso3, alt, alt2):

assert_rval(parse_date(date), veri_time, offset)

# END for each date type

# and failure

self.failUnlessRaises(ValueError, parse_date, 'invalid format')

self.failUnlessRaises(ValueError, parse_date, '123456789 -02000')

self.failUnlessRaises(ValueError, parse_date, ' 123456789 -0200')

def test_actor(self):

for cr in (None, self.rorepo.config_reader()):

assert isinstance(Actor.committer(cr), Actor)

assert isinstance(Actor.author(cr), Actor)

#END assure config reader is handled

def test_basics(self):

assert to_hex_sha(NULL_HEX_SHA) == NULL_HEX_SHA

assert len(to_bin_sha(NULL_HEX_SHA)) == 20

assert to_hex_sha(to_bin_sha(NULL_HEX_SHA)) == NULL_HEX_SHA

def _cmp_contents(self, file_path, data):

# raise if data from file at file_path

# does not match data string

fp = open(file_path, "rb")

try:

assert fp.read() == data

finally:

fp.close()

def test_lockedfd(self):

my_file = tempfile.mktemp()

orig_data = "hello"

new_data = "world"

my_file_fp = open(my_file, "wb")

my_file_fp.write(orig_data)

my_file_fp.close()

try:

lfd = LockedFD(my_file)

lockfilepath = lfd._lockfilepath()

# cannot end before it was started

self.failUnlessRaises(AssertionError, lfd.rollback)

self.failUnlessRaises(AssertionError, lfd.commit)

# open for writing

assert not os.path.isfile(lockfilepath)

wfd = lfd.open(write=True)

assert lfd._fd is wfd

assert os.path.isfile(lockfilepath)

# write data and fail

os.write(wfd, new_data)

lfd.rollback()

assert lfd._fd is None

self._cmp_contents(my_file, orig_data)

assert not os.path.isfile(lockfilepath)

# additional call doesnt fail

lfd.commit()

lfd.rollback()

# test reading

lfd = LockedFD(my_file)

rfd = lfd.open(write=False)

assert os.read(rfd, len(orig_data)) == orig_data

assert os.path.isfile(lockfilepath)

# deletion rolls back

del(lfd)

assert not os.path.isfile(lockfilepath)

# write data - concurrently

lfd = LockedFD(my_file)

olfd = LockedFD(my_file)

assert not os.path.isfile(lockfilepath)

wfdstream = lfd.open(write=True, stream=True) # this time as stream

assert os.path.isfile(lockfilepath)

# another one fails

self.failUnlessRaises(IOError, olfd.open)

wfdstream.write(new_data)

lfd.commit()

assert not os.path.isfile(lockfilepath)

self._cmp_contents(my_file, new_data)

# could test automatic _end_writing on destruction

finally:

os.remove(my_file)

# END final cleanup

# try non-existing file for reading

lfd = LockedFD(tempfile.mktemp())

try:

lfd.open(write=False)

except OSError:

assert not os.path.exists(lfd._lockfilepath())

else:

self.fail("expected OSError")

# END handle exceptions

def test_iterable_list(self):

for args in (('name',), ('name', 'prefix_')):

l = IterableList('name')

m1 = TestIterableMember('one')

m2 = TestIterableMember('two')

l.extend((m1, m2))

assert len(l) == 2

# contains works with name and identity

assert m1.name in l

assert m2.name in l

assert m2 in l

assert 'invalid' not in l

# with string index

assert l[m1.name] is m1

assert l[m2.name] is m2

# with int index

assert l[0] is m1

assert l[1] is m2

# with getattr

assert l.one is m1

assert l.two is m2

# test exceptions

self.failUnlessRaises(AttributeError, getattr, l, 'something')

self.failUnlessRaises(IndexError, l.__getitem__, 'something')

# delete by name and index

self.failUnlessRaises(IndexError, l.__delitem__, 'something')

del(l[m2.name])

assert len(l) == 1

assert m2.name not in l and m1.name in l

del(l[0])

assert m1.name not in l

assert len(l) == 0

self.failUnlessRaises(IndexError, l.__delitem__, 0)

self.failUnlessRaises(IndexError, l.__delitem__, 'something')

#END for each possible mode

class TestActor(TestBase):

def test_from_string_should_separate_name_and_email(self):

a = Actor._from_string("Michael Trier <mtrier@example.com>")

assert "Michael Trier" == a.name

assert "mtrier@example.com" == a.email

# base type capabilities

assert a == a

assert not ( a != a )

m = set()

m.add(a)

assert len(m) == 1

def test_from_string_should_handle_just_name(self):

a = Actor._from_string("Michael Trier")

assert "Michael Trier" == a.name

assert None == a.email

def test_should_display_representation(self):

a = Actor._from_string("Michael Trier <mtrier@example.com>")

assert '<git.Actor "Michael Trier <mtrier@example.com>">' == repr(a)

def test_str_should_alias_name(self):

a = Actor._from_string("Michael Trier <mtrier@example.com>")

assert a.name == str(a)

GitPython/git/test/test_util.py at master · uniphil/GitPython · GitHub

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