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Viewing changes to bzrlib/selftest/testbranch.py

  • Committer: Robert Collins
  • Date: 2005-10-08 08:45:42 UTC
  • Revision ID: robertc@robertcollins.net-20051008084542-48ea5a99756f970e
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
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from bzrlib.selftest import InTempDir
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class TestAppendRevisions(InTempDir):
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    """Test appending more than one revision"""
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    def runTest(self):
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        from bzrlib.branch import Branch
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        br = Branch(".", init=True)
 
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import os
 
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from bzrlib.branch import Branch
 
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from bzrlib.clone import copy_branch
 
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from bzrlib.commit import commit
 
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import bzrlib.errors as errors
 
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from bzrlib.errors import NoSuchRevision, UnlistableBranch
 
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from bzrlib.selftest import TestCaseInTempDir
 
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from bzrlib.trace import mutter
 
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import bzrlib.transactions as transactions
 
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class TestBranch(TestCaseInTempDir):
 
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    def test_append_revisions(self):
 
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        """Test appending more than one revision"""
 
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        br = Branch.initialize(".")
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        br.append_revision("rev1")
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        self.assertEquals(br.revision_history(), ["rev1",])
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        br.append_revision("rev2", "rev3")
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        self.assertEquals(br.revision_history(), ["rev1", "rev2", "rev3"])
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TEST_CLASSES = [
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    TestAppendRevisions,
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    ]
 
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    def test_fetch_revisions(self):
 
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        """Test fetch-revision operation."""
 
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        from bzrlib.fetch import Fetcher
 
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        os.mkdir('b1')
 
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        os.mkdir('b2')
 
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        b1 = Branch.initialize('b1')
 
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        b2 = Branch.initialize('b2')
 
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        file(os.sep.join(['b1', 'foo']), 'w').write('hello')
 
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        b1.add(['foo'], ['foo-id'])
 
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        b1.commit('lala!', rev_id='revision-1', allow_pointless=False)
 
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        mutter('start fetch')
 
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        f = Fetcher(from_branch=b1, to_branch=b2)
 
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        eq = self.assertEquals
 
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        eq(f.count_copied, 1)
 
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        eq(f.last_revision, 'revision-1')
 
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        rev = b2.get_revision('revision-1')
 
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        tree = b2.revision_tree('revision-1')
 
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        eq(tree.get_file_text('foo-id'), 'hello')
 
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    def test_push_stores(self):
 
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        """Copy the stores from one branch to another"""
 
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        os.mkdir('a')
 
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        br_a = Branch.initialize("a")
 
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        file('a/b', 'wb').write('b')
 
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        br_a.add('b')
 
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        commit(br_a, "silly commit")
 
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        os.mkdir('b')
 
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        br_b = Branch.initialize("b")
 
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        self.assertRaises(NoSuchRevision, br_b.get_revision, 
 
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                          br_a.revision_history()[0])
 
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        br_a.push_stores(br_b)
 
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        rev = br_b.get_revision(br_a.revision_history()[0])
 
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        tree = br_b.revision_tree(br_a.revision_history()[0])
 
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        for file_id in tree:
 
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            if tree.inventory[file_id].kind == "file":
 
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                tree.get_file(file_id).read()
 
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        return br_a, br_b
 
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    def test_copy_branch(self):
 
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        """Copy the stores from one branch to another"""
 
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        br_a, br_b = self.test_push_stores()
 
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        commit(br_b, "silly commit")
 
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        os.mkdir('c')
 
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        br_c = copy_branch(br_a, 'c', basis_branch=br_b)
 
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        self.assertEqual(br_a.revision_history(), br_c.revision_history())
 
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        ## # basis branches currently disabled for weave format
 
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        ## self.assertFalse(br_b.last_revision() in br_c.revision_history())
 
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        ## br_c.get_revision(br_b.last_revision())
 
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    def test_copy_partial(self):
 
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        """Copy only part of the history of a branch."""
 
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        self.build_tree(['a/', 'a/one'])
 
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        br_a = Branch.initialize('a')
 
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        br_a.add(['one'])
 
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        br_a.commit('commit one', rev_id='u@d-1')
 
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        self.build_tree(['a/two'])
 
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        br_a.add(['two'])
 
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        br_a.commit('commit two', rev_id='u@d-2')
 
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        br_b = copy_branch(br_a, 'b', revision='u@d-1')
 
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        self.assertEqual(br_b.last_revision(), 'u@d-1')
 
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        self.assertTrue(os.path.exists('b/one'))
 
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        self.assertFalse(os.path.exists('b/two'))
 
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    def test_record_initial_ghost_merge(self):
 
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        """A pending merge with no revision present is still a merge."""
 
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        branch = Branch.initialize('.')
 
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        branch.add_pending_merge('non:existent@rev--ision--0--2')
 
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        branch.commit('pretend to merge nonexistent-revision', rev_id='first')
 
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        rev = branch.get_revision(branch.last_revision())
 
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        self.assertEqual(len(rev.parent_ids), 1)
 
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        # parent_sha1s is not populated now, WTF. rbc 20051003
 
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        self.assertEqual(len(rev.parent_sha1s), 0)
 
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        self.assertEqual(rev.parent_ids[0], 'non:existent@rev--ision--0--2')
 
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# TODO 20051003 RBC:
 
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# compare the gpg-to-sign info for a commit with a ghost and 
 
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#     an identical tree without a ghost
 
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# fetch missing should rewrite the TOC of weaves to list newly available parents.
 
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    def test_pending_merges(self):
 
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        """Tracking pending-merged revisions."""
 
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        b = Branch.initialize('.')
 
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        self.assertEquals(b.pending_merges(), [])
 
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        b.add_pending_merge('foo@azkhazan-123123-abcabc')
 
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        self.assertEquals(b.pending_merges(), ['foo@azkhazan-123123-abcabc'])
 
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        b.add_pending_merge('foo@azkhazan-123123-abcabc')
 
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        self.assertEquals(b.pending_merges(), ['foo@azkhazan-123123-abcabc'])
 
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        b.add_pending_merge('wibble@fofof--20050401--1928390812')
 
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        self.assertEquals(b.pending_merges(),
 
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                          ['foo@azkhazan-123123-abcabc',
 
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                           'wibble@fofof--20050401--1928390812'])
 
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        b.commit("commit from base with two merges")
 
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        rev = b.get_revision(b.revision_history()[0])
 
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        self.assertEquals(len(rev.parent_ids), 2)
 
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        self.assertEquals(rev.parent_ids[0],
 
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                          'foo@azkhazan-123123-abcabc')
 
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        self.assertEquals(rev.parent_ids[1],
 
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                           'wibble@fofof--20050401--1928390812')
 
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        # list should be cleared when we do a commit
 
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        self.assertEquals(b.pending_merges(), [])
 
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# TODO: rewrite this as a regular unittest, without relying on the displayed output        
 
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#         >>> from bzrlib.commit import commit
 
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#         >>> bzrlib.trace.silent = True
 
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#         >>> br1 = ScratchBranch(files=['foo', 'bar'])
 
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#         >>> br1.add('foo')
 
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#         >>> br1.add('bar')
 
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#         >>> commit(br1, "lala!", rev_id="REVISION-ID-1", verbose=False)
 
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#         >>> br2 = ScratchBranch()
 
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#         >>> br2.update_revisions(br1)
 
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#         Added 2 texts.
 
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#         Added 1 inventories.
 
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#         Added 1 revisions.
 
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#         >>> br2.revision_history()
 
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#         [u'REVISION-ID-1']
 
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#         >>> br2.update_revisions(br1)
 
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#         Added 0 revisions.
 
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#         >>> br1.text_store.total_size() == br2.text_store.total_size()
 
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#         True
 
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class InstrumentedTransaction(object):
 
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    def finish(self):
 
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        self.calls.append('finish')
 
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169
    def __init__(self):
 
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        self.calls = []
 
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class TestBranchTransaction(TestCaseInTempDir):
 
174
 
 
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    def setUp(self):
 
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        super(TestBranchTransaction, self).setUp()
 
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        self.branch = Branch.initialize('.')
 
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    def test_default_get_transaction(self):
 
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        """branch.get_transaction on a new branch should give a PassThrough."""
 
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        self.failUnless(isinstance(self.branch.get_transaction(),
 
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                                   transactions.PassThroughTransaction))
 
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    def test__set_new_transaction(self):
 
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        self.branch._set_transaction(transactions.ReadOnlyTransaction())
 
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    def test__set_over_existing_transaction_raises(self):
 
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        self.branch._set_transaction(transactions.ReadOnlyTransaction())
 
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        self.assertRaises(errors.LockError,
 
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                          self.branch._set_transaction,
 
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                          transactions.ReadOnlyTransaction())
 
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    def test_finish_no_transaction_raises(self):
 
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        self.assertRaises(errors.LockError, self.branch._finish_transaction)
 
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    def test_finish_readonly_transaction_works(self):
 
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        self.branch._set_transaction(transactions.ReadOnlyTransaction())
 
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        self.branch._finish_transaction()
 
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        self.assertEqual(None, self.branch._transaction)
 
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    def test_unlock_calls_finish(self):
 
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        self.branch.lock_read()
 
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        transaction = InstrumentedTransaction()
 
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        self.branch._transaction = transaction
 
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        self.branch.unlock()
 
206
        self.assertEqual(['finish'], transaction.calls)
 
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    def test_lock_read_acquires_ro_transaction(self):
 
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        self.branch.lock_read()
 
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        self.failUnless(isinstance(self.branch.get_transaction(),
 
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                                   transactions.ReadOnlyTransaction))
 
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        self.branch.unlock()
 
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    def test_lock_write_acquires_passthrough_transaction(self):
 
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        self.branch.lock_write()
 
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        # cannot use get_transaction as its magic
 
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        self.failUnless(isinstance(self.branch._transaction,
 
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                                   transactions.PassThroughTransaction))
 
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        self.branch.unlock()