deb-python-pygit2/test/utils.py
2014-02-04 08:02:12 +01:00

162 lines
4.7 KiB
Python

# -*- coding: UTF-8 -*-
#
# Copyright 2010-2014 The pygit2 contributors
#
# This file is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License, version 2,
# as published by the Free Software Foundation.
#
# In addition to the permissions in the GNU General Public License,
# the authors give you unlimited permission to link the compiled
# version of this file into combinations with other programs,
# and to distribute those combinations without any restriction
# coming from the use of this file. (The General Public License
# restrictions do apply in other respects; for example, they cover
# modification of the file, and distribution when not linked into
# a combined executable.)
#
# This file is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
# General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; see the file COPYING. If not, write to
# the Free Software Foundation, 51 Franklin Street, Fifth Floor,
# Boston, MA 02110-1301, USA.
"""Test utilities for libgit2."""
import sys
import os
import shutil
import stat
import tarfile
import tempfile
import unittest
import hashlib
import pygit2
def force_rm_handle(remove_path, path, excinfo):
os.chmod(
path,
os.stat(path).st_mode | stat.S_IWUSR | stat.S_IWGRP | stat.S_IWOTH
)
remove_path(path)
def gen_blob_sha1(data):
# http://stackoverflow.com/questions/552659/assigning-git-sha1s-without-git
m = hashlib.sha1()
m.update(('blob %d\0' % len(data)).encode())
m.update(data)
return m.hexdigest()
def rmtree(path):
"""In Windows a read-only file cannot be removed, and shutil.rmtree fails.
So we implement our own version of rmtree to address this issue.
"""
if os.path.exists(path):
onerror = lambda func, path, e: force_rm_handle(func, path, e)
shutil.rmtree(path, onerror=onerror)
class TemporaryRepository(object):
def __init__(self, repo_spec):
self.repo_spec = repo_spec
def __enter__(self):
container, name = self.repo_spec
repo_path = os.path.join(os.path.dirname(__file__), 'data', name)
self.temp_dir = tempfile.mkdtemp()
temp_repo_path = os.path.join(self.temp_dir, name)
if container == 'tar':
tar = tarfile.open('.'.join((repo_path, 'tar')))
tar.extractall(self.temp_dir)
tar.close()
else:
shutil.copytree(repo_path, temp_repo_path)
return temp_repo_path
def __exit__(self, exc_type, exc_value, traceback):
rmtree(self.temp_dir)
class NoRepoTestCase(unittest.TestCase):
def setUp(self):
self._temp_dir = tempfile.mkdtemp()
self.repo = None
def tearDown(self):
del self.repo
rmtree(self._temp_dir)
def assertRaisesAssign(self, exc_class, instance, name, value):
try:
setattr(instance, name, value)
except:
self.assertEqual(exc_class, sys.exc_info()[0])
def assertAll(self, func, entries):
return self.assertTrue(all(func(x) for x in entries))
def assertAny(self, func, entries):
return self.assertTrue(any(func(x) for x in entries))
def assertRaisesWithArg(self, exc_class, arg, func, *args, **kwargs):
try:
func(*args, **kwargs)
except exc_class as exc_value:
self.assertEqual((arg,), exc_value.args)
else:
self.fail('%s(%r) not raised' % (exc_class.__name__, arg))
def assertEqualSignature(self, a, b):
# XXX Remove this once equality test is supported by Signature
self.assertEqual(a.name, b.name)
self.assertEqual(a.email, b.email)
self.assertEqual(a.time, b.time)
self.assertEqual(a.offset, b.offset)
class AutoRepoTestCase(NoRepoTestCase):
def setUp(self):
super(AutoRepoTestCase, self).setUp()
self.repo_ctxtmgr = TemporaryRepository(self.repo_spec)
self.repo_path = self.repo_ctxtmgr.__enter__()
self.repo = pygit2.Repository(self.repo_path)
def tearDown(self):
self.repo_ctxtmgr.__exit__(None, None, None)
super(AutoRepoTestCase, self).tearDown()
class BareRepoTestCase(AutoRepoTestCase):
repo_spec = 'git', 'testrepo.git'
class RepoTestCase(AutoRepoTestCase):
repo_spec = 'tar', 'testrepo'
class RepoTestCaseForMerging(AutoRepoTestCase):
repo_spec = 'tar', 'testrepoformerging'
class DirtyRepoTestCase(AutoRepoTestCase):
repo_spec = 'tar', 'dirtyrepo'
class EmptyRepoTestCase(AutoRepoTestCase):
repo_spec = 'tar', 'emptyrepo'