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author | Lars Wirzenius <lars.wirzenius@codethink.co.uk> | 2012-04-09 16:16:03 +0100 |
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committer | Lars Wirzenius <lars.wirzenius@codethink.co.uk> | 2012-04-09 17:25:46 +0100 |
commit | eb362413076846559ac1c22a32e2e29174055fcb (patch) | |
tree | d545a4017cc0a67b9dde61c866000af4b0a2122d /morphlib/localrepocache_tests.py | |
parent | 079bbfd447c8534e464ce5d40b80114c2022ebf4 (diff) | |
download | morph-eb362413076846559ac1c22a32e2e29174055fcb.tar.gz |
Add a LocalRepoCache class
Jannis and I discussed a refactoring of most of morph's internals
to reduce coupling and increase cohesion. This is one of the results:
we'll want a couple of classes to manage locally cached git repositories.
This commit adds the LocalRepoCache class to manage a the git cache
directory. Later on, we'll add the CachedRepo class to represent
individual repositories.
Diffstat (limited to 'morphlib/localrepocache_tests.py')
-rw-r--r-- | morphlib/localrepocache_tests.py | 98 |
1 files changed, 98 insertions, 0 deletions
diff --git a/morphlib/localrepocache_tests.py b/morphlib/localrepocache_tests.py new file mode 100644 index 00000000..13a1c415 --- /dev/null +++ b/morphlib/localrepocache_tests.py @@ -0,0 +1,98 @@ +# 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 morphlib + + +class LocalRepoCacheTests(unittest.TestCase): + + def setUp(self): + baseurls = ['git://example.com/'] + self.reponame = 'reponame' + self.repourl = 'git://example.com/reponame' + self.cachedir = '/cache/dir' + self.cache = set() + self.remotes = [] + self.lrc = morphlib.localrepocache.LocalRepoCache(self.cachedir, + baseurls) + self.lrc._git = self.fake_git + self.lrc._exists = self.fake_exists + + def fake_git(self, args): + if args[0] == 'clone': + self.assertEqual(len(args), 3) + remote = args[1] + local = args[2] + if local in self.cache: + raise Exception('cloning twice to %s' % local) + self.remotes.append(remote) + self.cache.add(local) + else: + raise NotImplementedError() + + def fake_exists(self, filename): + return filename in self.cache + + def test_has_not_got_relative_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_relative_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_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 morphlib.execute.CommandFailure('', '') + self.lrc._git = fail + self.assertRaises(morphlib.localrepocache.NoRemote, + self.lrc.cache_repo, self.repourl) + + def test_gets_cached_relative_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)) + |