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"""Tests for branch.last_revision_info."""
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from bzrlib.revision import NULL_REVISION
 
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from bzrlib.symbol_versioning import deprecated_in
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from bzrlib.tests import TestCaseWithTransport
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        revid = tree.commit('2st post', allow_pointless=True)
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        self.assertEqual((2, revid), tree.branch.last_revision_info())
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    def test_import_deprecated(self):
 
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        # importing and setting last revision
 
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        tree1 = self.make_branch_and_tree('branch1')
 
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        tree1.commit('1st post')
 
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        revid = tree1.commit('2st post', allow_pointless=True)
 
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        branch2 = self.make_branch('branch2')
 
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        self.applyDeprecated(deprecated_in((2, 4, 0)),
 
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            branch2.import_last_revision_info, tree1.branch.repository, 2, revid)
 
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        self.assertEqual((2, revid), branch2.last_revision_info())
 
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        self.assertTrue(branch2.repository.has_revision(revid))
 
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    def test_same_repo_deprecated(self):
 
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        # importing and setting last revision within the same repo
 
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        tree = self.make_branch_and_tree('branch1')
 
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        tree.commit('1st post')
 
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        revid = tree.commit('2st post', allow_pointless=True)
 
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        tree.branch.set_last_revision_info(0, NULL_REVISION)
 
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        self.applyDeprecated(deprecated_in((2, 4, 0)),
 
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            tree.branch.import_last_revision_info, tree.branch.repository, 2, revid)
 
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        self.assertEqual((2, revid), tree.branch.last_revision_info())
 
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    def test_import(self):
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        # importing and setting last revision
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        tree1 = self.make_branch_and_tree('branch1')
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        tree1.commit('1st post')
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        revid = tree1.commit('2st post', allow_pointless=True)
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        branch2 = self.make_branch('branch2')
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        branch2.import_last_revision_info(tree1.branch.repository, 2, revid)
 
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        branch2.import_last_revision_info_and_tags(tree1.branch, 2, revid)
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        self.assertEqual((2, revid), branch2.last_revision_info())
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        self.assertTrue(branch2.repository.has_revision(revid))
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        tree.commit('1st post')
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        revid = tree.commit('2st post', allow_pointless=True)
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        tree.branch.set_last_revision_info(0, NULL_REVISION)
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        tree.branch.import_last_revision_info(tree.branch.repository, 2, revid)
 
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        tree.branch.import_last_revision_info_and_tags(tree.branch, 2, revid)
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        self.assertEqual((2, revid), tree.branch.last_revision_info())