# (C) 2005, 2006 Canonical Ltd # 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; either version 2 of the License, or # (at your option) any later version. # 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA """Tests for branch implementations - tests a branch format.""" import os import sys import bzrlib.branch import bzrlib.bzrdir as bzrdir from bzrlib.branch import Branch, needs_read_lock, needs_write_lock from bzrlib.commit import commit import bzrlib.errors as errors from bzrlib.errors import (FileExists, NoSuchRevision, NoSuchFile, UninitializableFormat, NotBranchError, ) import bzrlib.gpg from bzrlib.osutils import getcwd from bzrlib.tests import TestCase, TestCaseWithTransport, TestSkipped from bzrlib.trace import mutter import bzrlib.transactions as transactions from bzrlib.transport import get_transport from bzrlib.transport.http import HttpServer from bzrlib.transport.memory import MemoryServer from bzrlib.upgrade import upgrade from bzrlib.workingtree import WorkingTree # TODO: Make a branch using basis branch, and check that it # doesn't request any files that could have been avoided, by # hooking into the Transport. class TestCaseWithBranch(TestCaseWithTransport): def setUp(self): super(TestCaseWithBranch, self).setUp() self.branch = None def get_branch(self): if self.branch is None: self.branch = self.make_branch(None) return self.branch def make_branch(self, relpath): repo = self.make_repository(relpath) # fixme RBC 20060210 this isnt necessarily a fixable thing, # Skipped is the wrong exception to raise. try: return self.branch_format.initialize(repo.bzrdir) except errors.UninitializableFormat: raise TestSkipped('Uninitializable branch format') def make_repository(self, relpath, shared=False): try: url = self.get_url(relpath) segments = url.split('/') if segments and segments[-1] not in ('', '.'): parent = '/'.join(segments[:-1]) t = get_transport(parent) try: t.mkdir(segments[-1]) except FileExists: pass made_control = self.bzrdir_format.initialize(url) return made_control.create_repository(shared=shared) except UninitializableFormat: raise TestSkipped("Format %s is not initializable.") class TestBranch(TestCaseWithBranch): def test_append_revisions(self): """Test appending more than one revision""" br = self.get_branch() br.append_revision("rev1") self.assertEquals(br.revision_history(), ["rev1",]) br.append_revision("rev2", "rev3") self.assertEquals(br.revision_history(), ["rev1", "rev2", "rev3"]) def test_fetch_revisions(self): """Test fetch-revision operation.""" from bzrlib.fetch import Fetcher get_transport(self.get_url()).mkdir('b1') get_transport(self.get_url()).mkdir('b2') wt = self.make_branch_and_tree('b1') b1 = wt.branch b2 = self.make_branch('b2') file('b1/foo', 'w').write('hello') wt.add(['foo'], ['foo-id']) wt.commit('lala!', rev_id='revision-1', allow_pointless=False) mutter('start fetch') f = Fetcher(from_branch=b1, to_branch=b2) eq = self.assertEquals eq(f.count_copied, 1) eq(f._last_revision, 'revision-1') rev = b2.repository.get_revision('revision-1') tree = b2.repository.revision_tree('revision-1') eq(tree.get_file_text('foo-id'), 'hello') def get_unbalanced_tree_pair(self): """Return two branches, a and b, with one file in a.""" get_transport(self.get_url()).mkdir('a') tree_a = self.make_branch_and_tree('a') file('a/b', 'wb').write('b') tree_a.add('b') tree_a.commit("silly commit", rev_id='A') get_transport(self.get_url()).mkdir('b') tree_b = self.make_branch_and_tree('b') return tree_a, tree_b def get_balanced_branch_pair(self): """Returns br_a, br_b as with one commit in a, and b has a's stores.""" tree_a, tree_b = self.get_unbalanced_tree_pair() tree_b.branch.repository.fetch(tree_a.branch.repository) return tree_a, tree_b def test_clone_branch(self): """Copy the stores from one branch to another""" tree_a, tree_b = self.get_balanced_branch_pair() tree_b.commit("silly commit") os.mkdir('c') # this fails to test that the history from a was not used. dir_c = tree_a.bzrdir.clone('c', basis=tree_b.bzrdir) self.assertEqual(tree_a.branch.revision_history(), dir_c.open_branch().revision_history()) def test_clone_partial(self): """Copy only part of the history of a branch.""" # TODO: RBC 20060208 test with a revision not on revision-history. # what should that behaviour be ? Emailed the list. wt_a = self.make_branch_and_tree('a') self.build_tree(['a/one']) wt_a.add(['one']) wt_a.commit('commit one', rev_id='1') self.build_tree(['a/two']) wt_a.add(['two']) wt_a.commit('commit two', rev_id='2') repo_b = self.make_repository('b') wt_a.bzrdir.open_repository().copy_content_into(repo_b) br_b = wt_a.bzrdir.open_branch().clone(repo_b.bzrdir, revision_id='1') self.assertEqual(br_b.last_revision(), '1') def test_sprout_partial(self): # test sprouting with a prefix of the revision-history. # also needs not-on-revision-history behaviour defined. wt_a = self.make_branch_and_tree('a') self.build_tree(['a/one']) wt_a.add(['one']) wt_a.commit('commit one', rev_id='1') self.build_tree(['a/two']) wt_a.add(['two']) wt_a.commit('commit two', rev_id='2') repo_b = self.make_repository('b') wt_a.bzrdir.open_repository().copy_content_into(repo_b) br_b = wt_a.bzrdir.open_branch().sprout(repo_b.bzrdir, revision_id='1') self.assertEqual(br_b.last_revision(), '1') def test_clone_branch_nickname(self): # test the nick name is preserved always raise TestSkipped('XXX branch cloning is not yet tested..') def test_clone_branch_parent(self): # test the parent is preserved always raise TestSkipped('XXX branch cloning is not yet tested..') def test_sprout_branch_nickname(self): # test the nick name is reset always raise TestSkipped('XXX branch sprouting is not yet tested..') def test_sprout_branch_parent(self): source = self.make_branch('source') target = source.bzrdir.sprout(self.get_url('target')).open_branch() self.assertEqual(source.bzrdir.root_transport.base, target.get_parent()) def test_record_initial_ghost_merge(self): """A pending merge with no revision present is still a merge.""" wt = self.make_branch_and_tree('.') branch = wt.branch wt.add_pending_merge('non:existent@rev--ision--0--2') wt.commit('pretend to merge nonexistent-revision', rev_id='first') rev = branch.repository.get_revision(branch.last_revision()) self.assertEqual(len(rev.parent_ids), 1) # parent_sha1s is not populated now, WTF. rbc 20051003 self.assertEqual(len(rev.parent_sha1s), 0) self.assertEqual(rev.parent_ids[0], 'non:existent@rev--ision--0--2') def test_bad_revision(self): self.assertRaises(errors.InvalidRevisionId, self.get_branch().repository.get_revision, None) # TODO 20051003 RBC: # compare the gpg-to-sign info for a commit with a ghost and # an identical tree without a ghost # fetch missing should rewrite the TOC of weaves to list newly available parents. def test_pending_merges(self): """Tracking pending-merged revisions.""" wt = self.make_branch_and_tree('.') b = wt.branch self.assertEquals(wt.pending_merges(), []) wt.add_pending_merge('foo@azkhazan-123123-abcabc') self.assertEquals(wt.pending_merges(), ['foo@azkhazan-123123-abcabc']) wt.add_pending_merge('foo@azkhazan-123123-abcabc') self.assertEquals(wt.pending_merges(), ['foo@azkhazan-123123-abcabc']) wt.add_pending_merge('wibble@fofof--20050401--1928390812') self.assertEquals(wt.pending_merges(), ['foo@azkhazan-123123-abcabc', 'wibble@fofof--20050401--1928390812']) wt.commit("commit from base with two merges") rev = b.repository.get_revision(b.revision_history()[0]) self.assertEquals(len(rev.parent_ids), 2) self.assertEquals(rev.parent_ids[0], 'foo@azkhazan-123123-abcabc') self.assertEquals(rev.parent_ids[1], 'wibble@fofof--20050401--1928390812') # list should be cleared when we do a commit self.assertEquals(wt.pending_merges(), []) def test_sign_existing_revision(self): wt = self.make_branch_and_tree('.') branch = wt.branch wt.commit("base", allow_pointless=True, rev_id='A') from bzrlib.testament import Testament strategy = bzrlib.gpg.LoopbackGPGStrategy(None) branch.repository.sign_revision('A', strategy) self.assertEqual(Testament.from_revision(branch.repository, 'A').as_short_text(), branch.repository.revision_store.get('A', 'sig').read()) def test_store_signature(self): branch = self.get_branch() branch.repository.store_revision_signature( bzrlib.gpg.LoopbackGPGStrategy(None), 'FOO', 'A') self.assertEqual('FOO', branch.repository.revision_store.get('A', 'sig').read()) def test_branch_keeps_signatures(self): wt = self.make_branch_and_tree('source') wt.commit('A', allow_pointless=True, rev_id='A') wt.branch.repository.sign_revision('A', bzrlib.gpg.LoopbackGPGStrategy(None)) #FIXME: clone should work to urls, # wt.clone should work to disks. self.build_tree(['target/']) d2 = wt.bzrdir.clone('target') self.assertEqual(wt.branch.repository.revision_store.get('A', 'sig').read(), d2.open_repository().revision_store.get('A', 'sig').read()) def test_upgrade_preserves_signatures(self): wt = self.make_branch_and_tree('source') wt.commit('A', allow_pointless=True, rev_id='A') wt.branch.repository.sign_revision('A', bzrlib.gpg.LoopbackGPGStrategy(None)) old_signature = wt.branch.repository.revision_store.get('A', 'sig').read() try: upgrade(wt.basedir) except errors.UpToDateFormat: # this is in the most current format already. return wt = WorkingTree.open(wt.basedir) new_signature = wt.branch.repository.revision_store.get('A', 'sig').read() self.assertEqual(old_signature, new_signature) def test_nicks(self): """Branch nicknames""" t = get_transport(self.get_url()) t.mkdir('bzr.dev') branch = self.make_branch('bzr.dev') self.assertEqual(branch.nick, 'bzr.dev') t.move('bzr.dev', 'bzr.ab') branch = Branch.open(self.get_url('bzr.ab')) self.assertEqual(branch.nick, 'bzr.ab') branch.nick = "Aaron's branch" branch.nick = "Aaron's branch" self.failUnless( t.has( t.relpath( branch.control_files.controlfilename("branch.conf") ) ) ) self.assertEqual(branch.nick, "Aaron's branch") t.move('bzr.ab', 'integration') branch = Branch.open(self.get_url('integration')) self.assertEqual(branch.nick, "Aaron's branch") branch.nick = u"\u1234" self.assertEqual(branch.nick, u"\u1234") def test_commit_nicks(self): """Nicknames are committed to the revision""" get_transport(self.get_url()).mkdir('bzr.dev') wt = self.make_branch_and_tree('bzr.dev') branch = wt.branch branch.nick = "My happy branch" wt.commit('My commit respect da nick.') committed = branch.repository.get_revision(branch.last_revision()) self.assertEqual(committed.properties["branch-nick"], "My happy branch") def test_create_open_branch_uses_repository(self): try: repo = self.make_repository('.', shared=True) except errors.IncompatibleFormat: return repo.bzrdir.root_transport.mkdir('child') child_dir = self.bzrdir_format.initialize('child') try: child_branch = self.branch_format.initialize(child_dir) except errors.UninitializableFormat: # branch references are not default init'able. return self.assertEqual(repo.bzrdir.root_transport.base, child_branch.repository.bzrdir.root_transport.base) child_branch = bzrlib.branch.Branch.open(self.get_url('child')) self.assertEqual(repo.bzrdir.root_transport.base, child_branch.repository.bzrdir.root_transport.base) class ChrootedTests(TestCaseWithBranch): """A support class that provides readonly urls outside the local namespace. This is done by checking if self.transport_server is a MemoryServer. if it is then we are chrooted already, if it is not then an HttpServer is used for readonly urls. """ def setUp(self): super(ChrootedTests, self).setUp() if not self.transport_server == MemoryServer: self.transport_readonly_server = HttpServer def test_open_containing(self): self.assertRaises(NotBranchError, Branch.open_containing, self.get_readonly_url('')) self.assertRaises(NotBranchError, Branch.open_containing, self.get_readonly_url('g/p/q')) branch = self.make_branch('.') branch, relpath = Branch.open_containing(self.get_readonly_url('')) self.assertEqual('', relpath) branch, relpath = Branch.open_containing(self.get_readonly_url('g/p/q')) self.assertEqual('g/p/q', relpath) # TODO: rewrite this as a regular unittest, without relying on the displayed output # >>> from bzrlib.commit import commit # >>> bzrlib.trace.silent = True # >>> br1 = ScratchBranch(files=['foo', 'bar']) # >>> br1.working_tree().add('foo') # >>> br1.working_tree().add('bar') # >>> commit(br1, "lala!", rev_id="REVISION-ID-1", verbose=False) # >>> br2 = ScratchBranch() # >>> br2.update_revisions(br1) # Added 2 texts. # Added 1 inventories. # Added 1 revisions. # >>> br2.revision_history() # [u'REVISION-ID-1'] # >>> br2.update_revisions(br1) # Added 0 revisions. # >>> br1.text_store.total_size() == br2.text_store.total_size() # True class InstrumentedTransaction(object): def finish(self): self.calls.append('finish') def __init__(self): self.calls = [] class TestDecorator(object): def __init__(self): self._calls = [] def lock_read(self): self._calls.append('lr') def lock_write(self): self._calls.append('lw') def unlock(self): self._calls.append('ul') @needs_read_lock def do_with_read(self): return 1 @needs_read_lock def except_with_read(self): raise RuntimeError @needs_write_lock def do_with_write(self): return 2 @needs_write_lock def except_with_write(self): raise RuntimeError class TestDecorators(TestCase): def test_needs_read_lock(self): branch = TestDecorator() self.assertEqual(1, branch.do_with_read()) self.assertEqual(['lr', 'ul'], branch._calls) def test_excepts_in_read_lock(self): branch = TestDecorator() self.assertRaises(RuntimeError, branch.except_with_read) self.assertEqual(['lr', 'ul'], branch._calls) def test_needs_write_lock(self): branch = TestDecorator() self.assertEqual(2, branch.do_with_write()) self.assertEqual(['lw', 'ul'], branch._calls) def test_excepts_in_write_lock(self): branch = TestDecorator() self.assertRaises(RuntimeError, branch.except_with_write) self.assertEqual(['lw', 'ul'], branch._calls) class TestBranchTransaction(TestCaseWithBranch): def setUp(self): super(TestBranchTransaction, self).setUp() self.branch = None def test_default_get_transaction(self): """branch.get_transaction on a new branch should give a PassThrough.""" self.failUnless(isinstance(self.get_branch().get_transaction(), transactions.PassThroughTransaction)) def test__set_new_transaction(self): self.get_branch()._set_transaction(transactions.ReadOnlyTransaction()) def test__set_over_existing_transaction_raises(self): self.get_branch()._set_transaction(transactions.ReadOnlyTransaction()) self.assertRaises(errors.LockError, self.get_branch()._set_transaction, transactions.ReadOnlyTransaction()) def test_finish_no_transaction_raises(self): self.assertRaises(errors.LockError, self.get_branch()._finish_transaction) def test_finish_readonly_transaction_works(self): self.get_branch()._set_transaction(transactions.ReadOnlyTransaction()) self.get_branch()._finish_transaction() self.assertEqual(None, self.get_branch().control_files._transaction) def test_unlock_calls_finish(self): self.get_branch().lock_read() transaction = InstrumentedTransaction() self.get_branch().control_files._transaction = transaction self.get_branch().unlock() self.assertEqual(['finish'], transaction.calls) def test_lock_read_acquires_ro_transaction(self): self.get_branch().lock_read() self.failUnless(isinstance(self.get_branch().get_transaction(), transactions.ReadOnlyTransaction)) self.get_branch().unlock() def test_lock_write_acquires_passthrough_transaction(self): self.get_branch().lock_write() # cannot use get_transaction as its magic self.failUnless(isinstance(self.get_branch().control_files._transaction, transactions.PassThroughTransaction)) self.get_branch().unlock() class TestBranchPushLocations(TestCaseWithBranch): def test_get_push_location_unset(self): self.assertEqual(None, self.get_branch().get_push_location()) def test_get_push_location_exact(self): from bzrlib.config import (branches_config_filename, ensure_config_dir_exists) ensure_config_dir_exists() fn = branches_config_filename() print >> open(fn, 'wt'), ("[%s]\n" "push_location=foo" % self.get_branch().base[:-1]) self.assertEqual("foo", self.get_branch().get_push_location()) def test_set_push_location(self): from bzrlib.config import (branches_config_filename, ensure_config_dir_exists) ensure_config_dir_exists() fn = branches_config_filename() self.get_branch().set_push_location('foo') self.assertFileEqual("[%s]\n" "push_location = foo" % self.get_branch().base[:-1], fn) # TODO RBC 20051029 test getting a push location from a branch in a # recursive section - that is, it appends the branch name. class TestFormat(TestCaseWithBranch): """Tests for the format itself.""" def test_format_initialize_find_open(self): # loopback test to check the current format initializes to itself. if not self.branch_format.is_supported(): # unsupported formats are not loopback testable # because the default open will not open them and # they may not be initializable. return # supported formats must be able to init and open t = get_transport(self.get_url()) readonly_t = get_transport(self.get_readonly_url()) made_branch = self.make_branch('.') self.failUnless(isinstance(made_branch, bzrlib.branch.Branch)) # find it via bzrdir opening: opened_control = bzrdir.BzrDir.open(readonly_t.base) direct_opened_branch = opened_control.open_branch() self.assertEqual(direct_opened_branch.__class__, made_branch.__class__) self.assertEqual(opened_control, direct_opened_branch.bzrdir) self.failUnless(isinstance(direct_opened_branch._format, self.branch_format.__class__)) # find it via Branch.open opened_branch = bzrlib.branch.Branch.open(readonly_t.base) self.failUnless(isinstance(opened_branch, made_branch.__class__)) self.assertEqual(made_branch._format.__class__, opened_branch._format.__class__) # if it has a unique id string, can we probe for it ? try: self.branch_format.get_format_string() except NotImplementedError: return self.assertEqual(self.branch_format, bzrlib.branch.BranchFormat.find_format(opened_control))