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Viewing changes to bzrlib/tests/test_branch.py

  • Committer: Erik Bågfors
  • Date: 2006-02-03 19:50:59 UTC
  • mto: (1185.50.77 bzr-jam-integration)
  • mto: This revision was merged to the branch mainline in revision 1554.
  • Revision ID: erik@bagfors.nu-20060203195059-1cf8ff5aa68de0ea
Support for plugins to register log formatters and set default formatter
Also, change one command line option for "log"

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bzrlib/tests/test_branch.py
 
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# (C) 2005 Canonical Ltd
 
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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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# 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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# 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 the Branch facility that are not interface  tests.
 
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For interface tests see test_branch_implementations.py.
 
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For concrete class tests see this file, and for meta-branch tests
 
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also see this file.
 
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"""
 
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from StringIO import StringIO
 
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import bzrlib.branch as branch
 
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from bzrlib.errors import (NotBranchError,
 
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                           UnknownFormatError,
 
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                           UnsupportedFormatError,
 
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                           )
 
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from bzrlib.tests import TestCase, TestCaseInTempDir
 
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from bzrlib.transport import get_transport
 
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class TestDefaultFormat(TestCase):
 
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    def test_get_set_default_initializer(self):
 
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        old_initializer = branch.Branch.get_default_initializer()
 
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        # default is BzrBranch._initialize
 
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        self.assertEqual(branch.BzrBranch._initialize, old_initializer)
 
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        def recorder(url):
 
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            return "a branch %s" % url
 
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        branch.Branch.set_default_initializer(recorder)
 
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        try:
 
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            b = branch.Branch.create("memory:/")
 
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            self.assertEqual("a branch memory:/", b)
 
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        finally:
 
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            branch.Branch.set_default_initializer(old_initializer)
 
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        self.assertEqual(old_initializer, branch.Branch.get_default_initializer())
 
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class SampleBranchFormat(branch.BzrBranchFormat):
 
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    """A sample format
 
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    this format is initializable, unsupported to aid in testing the 
 
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    open and open_downlevel routines.
 
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    """
 
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    def get_format_string(self):
 
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        """See BzrBranchFormat.get_format_string()."""
 
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        return "Sample branch format."
 
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    def initialize(self, url):
 
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        """Format 4 branches cannot be created."""
 
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        t = get_transport(url)
 
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        t.mkdir('.bzr')
 
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        t.put('.bzr/branch-format', StringIO(self.get_format_string()))
 
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        return 'A branch'
 
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    def is_supported(self):
 
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        return False
 
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    def open(self, transport):
 
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        return "opened branch."
 
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class TestBzrBranchFormat(TestCaseInTempDir):
 
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    """Tests for the BzrBranchFormat facility."""
 
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    def test_find_format(self):
 
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        # is the right format object found for a branch?
 
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        # create a branch with a few known format objects.
 
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        # this is not quite the same as 
 
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        self.build_tree(["foo/", "bar/"])
 
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        def check_format(format, url):
 
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            format.initialize(url)
 
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            t = get_transport(url)
 
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            found_format = branch.BzrBranchFormat.find_format(t)
 
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            self.failUnless(isinstance(found_format, format.__class__))
 
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        check_format(branch.BzrBranchFormat5(), "foo")
 
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        check_format(branch.BzrBranchFormat6(), "bar")
 
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    def test_find_format_not_branch(self):
 
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        self.assertRaises(NotBranchError,
 
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                          branch.BzrBranchFormat.find_format,
 
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                          get_transport('.'))
 
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    def test_find_format_unknown_format(self):
 
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        t = get_transport('.')
 
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        t.mkdir('.bzr')
 
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        t.put('.bzr/branch-format', StringIO())
 
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        self.assertRaises(UnknownFormatError,
 
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                          branch.BzrBranchFormat.find_format,
 
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                          get_transport('.'))
 
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    def test_register_unregister_format(self):
 
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        format = SampleBranchFormat()
 
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        # make a branch
 
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        format.initialize('.')
 
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        # register a format for it.
 
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        branch.BzrBranchFormat.register_format(format)
 
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        # which branch.Open will refuse (not supported)
 
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        self.assertRaises(UnsupportedFormatError, branch.Branch.open, '.')
 
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        # but open_downlevel will work
 
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        t = get_transport('.')
 
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        self.assertEqual(format.open(t), branch.Branch.open_downlevel('.'))
 
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        # unregister the format
 
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        branch.BzrBranchFormat.unregister_format(format)
 
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        # now open_downlevel should fail too.
 
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        self.assertRaises(UnknownFormatError, branch.Branch.open_downlevel, '.')