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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 os
import unittest
import cliapp
import morphlib
from morphlib import cachedrepo
class CachedRepoTests(unittest.TestCase):
def show_ref(self, ref):
output = {
'master':
'e28a23812eadf2fce6583b8819b9c5dbd36b9fb9'
' refs/remotes/origin/master',
'baserock/morph':
'8b780e2e6f102fcf400ff973396566d36d730501'
' refs/remotes/origin/baserock/morph',
}
try:
return output[ref]
except:
raise cliapp.AppException('git show-ref %s' % ref)
def rev_list(self, ref):
output = {
'e28a23812eadf2fce6583b8819b9c5dbd36b9fb9':
'e28a23812eadf2fce6583b8819b9c5dbd36b9fb9',
'a4da32f5a81c8bc6d660404724cedc3bc0914a75':
'a4da32f5a81c8bc6d660404724cedc3bc0914a75',
}
try:
return output[ref]
except:
raise cliapp.AppException('git rev-list %s' % ref)
def cat_file(self, ref, filename):
output = {
'e28a23812eadf2fce6583b8819b9c5dbd36b9fb9:foo.morph':
'contents of foo.morph'
}
try:
return output['%s:%s' % (ref, filename)]
except:
raise cliapp.AppException(
'git cat-file blob %s:%s' % (ref, filename))
def copy_repository(self, source_dir, target_dir):
pass
def checkout_ref(self, ref, target_dir):
bad_refs = [
'a4da32f5a81c8bc6d660404724cedc3bc0914a75',
'079bbfd447c8534e464ce5d40b80114c2022ebf4',
]
if ref in bad_refs:
# simulate a git failure or something similar to
# trigger a CheckoutError
raise cliapp.AppException('git checkout %s' % ref)
else:
with open(os.path.join(target_dir, 'foo.morph'), 'w') as f:
f.write('contents of foo.morph')
def update_successfully(self):
pass
def update_with_failure(self):
raise cliapp.AppException('git remote update origin')
def setUp(self):
self.repo_name = 'foo'
self.repo_url = 'git://foo.bar/foo.git'
self.repo_path = '/tmp/foo'
self.repo = cachedrepo.CachedRepo(
object(), self.repo_name, self.repo_url, self.repo_path)
self.repo._show_ref = self.show_ref
self.repo._rev_list = self.rev_list
self.repo._cat_file = self.cat_file
self.repo._copy_repository = self.copy_repository
self.repo._checkout_ref = self.checkout_ref
self.tempdir = morphlib.tempdir.Tempdir()
def tearDown(self):
self.tempdir.remove()
def test_constructor_sets_name_and_url_and_path(self):
self.assertEqual(self.repo.original_name, self.repo_name)
self.assertEqual(self.repo.url, self.repo_url)
self.assertEqual(self.repo.path, self.repo_path)
def test_resolve_named_ref_master(self):
sha1 = self.repo.resolve_ref('master')
self.assertEqual(sha1, 'e28a23812eadf2fce6583b8819b9c5dbd36b9fb9')
def test_resolve_named_ref_baserock_morph(self):
sha1 = self.repo.resolve_ref('baserock/morph')
self.assertEqual(sha1, '8b780e2e6f102fcf400ff973396566d36d730501')
def test_fail_resolving_invalid_named_ref(self):
self.assertRaises(cachedrepo.InvalidReferenceError,
self.repo.resolve_ref, 'foo/bar')
def test_resolve_sha1_ref(self):
sha1 = self.repo.resolve_ref(
'e28a23812eadf2fce6583b8819b9c5dbd36b9fb9')
self.assertEqual(sha1, 'e28a23812eadf2fce6583b8819b9c5dbd36b9fb9')
def test_fail_resolving_an_invalid_sha1_ref(self):
self.assertRaises(cachedrepo.InvalidReferenceError,
self.repo.resolve_ref,
'079bbfd447c8534e464ce5d40b80114c2022ebf4')
def test_cat_existing_file_in_existing_ref(self):
data = self.repo.cat('e28a23812eadf2fce6583b8819b9c5dbd36b9fb9',
'foo.morph')
self.assertEqual(data, 'contents of foo.morph')
def test_fail_cat_file_in_invalid_ref(self):
self.assertRaises(cachedrepo.InvalidReferenceError, self.repo.cat,
'079bbfd447c8534e464ce5d40b80114c2022ebf4',
'doesnt-matter-whether-this-file-exists')
def test_fail_cat_non_existent_file_in_existing_ref(self):
self.assertRaises(IOError, self.repo.cat,
'e28a23812eadf2fce6583b8819b9c5dbd36b9fb9',
'file-that-does-not-exist')
def test_fail_cat_non_existent_file_in_invalid_ref(self):
self.assertRaises(cachedrepo.InvalidReferenceError, self.repo.cat,
'079bbfd447c8534e464ce5d40b80114c2022ebf4',
'file-that-does-not-exist')
def test_fail_because_cat_in_named_ref_is_not_allowed(self):
self.assertRaises(cachedrepo.UnresolvedNamedReferenceError,
self.repo.cat, 'master', 'doesnt-matter')
def test_fail_checkout_into_existing_directory(self):
self.assertRaises(cachedrepo.CheckoutDirectoryExistsError,
self.repo.checkout,
'e28a23812eadf2fce6583b8819b9c5dbd36b9fb9',
self.tempdir.dirname)
def test_fail_checkout_from_invalid_ref(self):
self.assertRaises(cachedrepo.CheckoutError, self.repo.checkout,
'079bbfd447c8534e464ce5d40b80114c2022ebf4',
self.tempdir.join('checkout-from-invalid-ref'))
def test_checkout_from_existing_ref_into_new_directory(self):
unpack_dir = self.tempdir.join('unpack-dir')
self.repo.checkout('e28a23812eadf2fce6583b8819b9c5dbd36b9fb9',
unpack_dir)
self.assertTrue(os.path.exists(unpack_dir))
morph_filename = os.path.join(unpack_dir, 'foo.morph')
self.assertTrue(os.path.exists(morph_filename))
def test_fail_checkout_due_to_copy_or_checkout_problem(self):
self.assertRaises(cachedrepo.CheckoutError, self.repo.checkout,
'a4da32f5a81c8bc6d660404724cedc3bc0914a75',
self.tempdir.join('failed-checkout'))
def test_successful_update(self):
self.repo._update = self.update_successfully
self.repo.update()
def test_failing_update(self):
self.repo._update = self.update_with_failure
self.assertRaises(cachedrepo.UpdateError, self.repo.update)
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