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# Copyright (C) 2012 Codethink Limited
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; version 2 of the License.
#
# This program 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; if not, write to the Free Software Foundation, Inc.,
# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
import unittest
import urllib2
import cliapp
import morphlib
class LocalRepoCacheTests(unittest.TestCase):
def setUp(self):
aliases = ['upstream=git://example.com/#example.com:%s.git']
repo_resolver = morphlib.repoaliasresolver.RepoAliasResolver(aliases)
bundle_base_url = 'http://lorry.example.com/bundles/'
self.reponame = 'upstream:reponame'
self.repourl = 'git://example.com/reponame'
escaped_url = 'git___example_com_reponame'
self.bundle_url = '%s%s.bndl' % (bundle_base_url, escaped_url)
self.cachedir = '/cache/dir'
self.cache_path = '%s/%s' % (self.cachedir, escaped_url)
self.cache = set()
self.remotes = {}
self.fetched = []
self.removed = []
self.lrc = morphlib.localrepocache.LocalRepoCache(object(),
self.cachedir, repo_resolver, bundle_base_url)
self.lrc._git = self.fake_git
self.lrc._exists = self.fake_exists
self.lrc._fetch = self.not_found
self.lrc._mkdir = self.fake_mkdir
self.lrc._remove = self.fake_remove
def fake_git(self, args, cwd=None):
if args[0] == 'clone':
self.assertEqual(len(args), 4)
remote = args[2]
local = args[3]
if local in self.cache:
raise Exception('cloning twice to %s' % local)
self.remotes['origin'] = {'url': remote, 'updates': 0}
self.cache.add(local)
elif args[0:2] == ['remote', 'set-url']:
remote = args[2]
url = args[3]
self.remotes[remote]['url'] = url
else:
raise NotImplementedError()
def fake_exists(self, filename):
return filename in self.cache
def fake_mkdir(self, dirname):
self.cache.add(dirname)
def fake_remove(self, filename):
self.removed.append(filename)
def not_found(self, url, path):
raise urllib2.URLError('Not found')
def fake_fetch(self, url, path):
self.fetched.append(url)
self.cache.add(path)
return True
def test_has_not_got_shortened_repo_initially(self):
self.assertFalse(self.lrc.has_repo(self.reponame))
def test_has_not_got_absolute_repo_initially(self):
self.assertFalse(self.lrc.has_repo(self.repourl))
def test_caches_shortened_repository_on_request(self):
self.lrc.cache_repo(self.reponame)
self.assertTrue(self.lrc.has_repo(self.reponame))
self.assertTrue(self.lrc.has_repo(self.repourl))
def test_caches_absolute_repository_on_request(self):
self.lrc.cache_repo(self.repourl)
self.assertTrue(self.lrc.has_repo(self.reponame))
self.assertTrue(self.lrc.has_repo(self.repourl))
def test_cachedir_does_not_exist_initially(self):
self.assertFalse(self.cachedir in self.cache)
def test_creates_cachedir_if_missing(self):
self.lrc.cache_repo(self.repourl)
self.assertTrue(self.cachedir in self.cache)
def test_happily_caches_same_repo_twice(self):
self.lrc.cache_repo(self.repourl)
self.lrc.cache_repo(self.repourl)
def test_fails_to_cache_when_remote_does_not_exist(self):
def fail(args):
raise cliapp.AppException('')
self.lrc._git = fail
self.assertRaises(morphlib.localrepocache.NoRemote,
self.lrc.cache_repo, self.repourl)
def test_does_not_mind_a_missing_bundle(self):
self.lrc.cache_repo(self.repourl)
self.assertEqual(self.fetched, [])
def test_fetches_bundle_when_it_exists(self):
self.lrc._fetch = self.fake_fetch
self.lrc.cache_repo(self.repourl)
self.assertEqual(self.fetched, [self.bundle_url])
self.assertEqual(self.removed, [self.cache_path + '.bundle'])
self.assertEqual(self.remotes['origin']['url'], self.repourl)
def test_gets_cached_shortened_repo(self):
self.lrc.cache_repo(self.reponame)
cached = self.lrc.get_repo(self.reponame)
self.assertTrue(cached is not None)
def test_gets_cached_absolute_repo(self):
self.lrc.cache_repo(self.repourl)
cached = self.lrc.get_repo(self.repourl)
self.assertTrue(cached is not None)
def test_get_repo_raises_exception_if_repo_is_not_cached(self):
self.assertRaises(Exception, self.lrc.get_repo, self.repourl)
def test_escapes_repourl_as_filename(self):
escaped = self.lrc._escape(self.repourl)
self.assertFalse('/' in escaped)
def test_noremote_error_message_contains_repo_name(self):
e = morphlib.localrepocache.NoRemote(self.repourl, [])
self.assertTrue(self.repourl in str(e))
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