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  • Committer: Martin Pool
  • Date: 2007-11-30 00:34:19 UTC
  • mto: This revision was merged to the branch mainline in revision 3053.
  • Revision ID: mbp@sourcefrog.net-20071130003419-rogoz6xt0hrcy72c
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bzrlib/tests/test_switch.py
 
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# Copyright (C) 2007 Canonical Ltd
 
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#
 
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# This program is free software; you can redistribute it and/or modify
 
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# it under the terms of the GNU General Public License as published by
 
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# the Free Software Foundation; either version 2 of the License, or
 
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# (at your option) any later version.
 
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#
 
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# This program is distributed in the hope that it will be useful,
 
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
 
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 
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# GNU General Public License for more details.
 
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#
 
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# You should have received a copy of the GNU General Public License
 
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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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"""Tests for bzrlib.switch."""
 
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import os
 
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from bzrlib import branch, errors, switch, tests
 
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class TestSwitch(tests.TestCaseWithTransport):
 
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    def _setup_tree(self):
 
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        tree = self.make_branch_and_tree('branch-1')
 
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        self.build_tree(['branch-1/file-1'])
 
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        tree.add('file-1')
 
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        tree.commit('rev1')
 
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        return tree
 
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    def test_switch_updates(self):
 
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        """Test switch updates tree and keeps uncommitted changes."""
 
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        tree = self._setup_tree()
 
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        to_branch = tree.bzrdir.sprout('branch-2').open_branch()
 
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        self.build_tree(['branch-1/file-2'])
 
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        tree.add('file-2')
 
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        tree.remove('file-1')
 
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        tree.commit('rev2')
 
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        checkout = tree.branch.create_checkout('checkout', lightweight=True)
 
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        self.build_tree(['checkout/file-3'])
 
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        checkout.add('file-3')
 
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        self.failIfExists('checkout/file-1')
 
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        self.failUnlessExists('checkout/file-2')
 
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        switch.switch(checkout.bzrdir, to_branch)
 
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        self.failUnlessExists('checkout/file-1')
 
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        self.failIfExists('checkout/file-2')
 
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        self.failUnlessExists('checkout/file-3')
 
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    def test_switch_after_branch_moved(self):
 
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        """Test switch after the branch is moved."""
 
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        tree = self._setup_tree()
 
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        checkout = tree.branch.create_checkout('checkout', lightweight=True)
 
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        self.build_tree(['branch-1/file-2'])
 
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        tree.add('file-2')
 
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        tree.remove('file-1')
 
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        tree.commit('rev2')
 
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        self.build_tree(['checkout/file-3'])
 
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        checkout.add('file-3')
 
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        checkout_dir = checkout.bzrdir
 
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        # rename the branch on disk, the checkout object is now invalid.
 
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        os.rename('branch-1', 'branch-2')
 
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        to_branch = branch.Branch.open('branch-2')
 
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        switch.switch(checkout.bzrdir, to_branch)
 
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        self.failIfExists('checkout/file-1')
 
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        self.failUnlessExists('checkout/file-2')
 
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        self.failUnlessExists('checkout/file-3')
 
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    def test_switch_on_heavy_checkout(self):
 
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        """Test graceful failure on heavyweight checkouts."""
 
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        tree = self._setup_tree()
 
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        checkout = tree.branch.create_checkout('checkout-1', lightweight=False)
 
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        branch2 = self.make_branch('branch-2')
 
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        err = self.assertRaises(errors.BzrCommandError,
 
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            switch.switch, checkout.bzrdir, branch2)
 
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        self.assertContainsRe(str(err),
 
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            "The switch command can only be used on a lightweight checkout")
 
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    def test_switch_when_pending_merges(self):
 
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        """Test graceful failure if pending merges are outstanding."""
 
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        # Create 2 branches and a checkout
 
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        tree = self._setup_tree()
 
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        tree2 = tree.bzrdir.sprout('branch-2').open_workingtree()
 
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        checkout = tree.branch.create_checkout('checkout', lightweight=True)
 
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        # Change tree2 and merge it into the checkout without committing
 
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        self.build_tree(['branch-2/file-2'])
 
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        tree2.add('file-2')
 
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        tree2.commit('rev2')
 
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        checkout.merge_from_branch(tree2.branch)
 
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        # Check the error reporting is as expected
 
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        err = self.assertRaises(errors.BzrCommandError,
 
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            switch.switch, checkout.bzrdir, tree2.branch)
 
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        self.assertContainsRe(str(err),
 
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            "Pending merges must be committed or reverted before using switch")