/brz/remove-bazaar

# Copyright (C) 2006 by 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

"""Tree implementation tests for bzr.

These test the conformance of all the tree variations to the expected API.

Specific tests for individual variations are in other places such as:

 - tests/test_tree.py

 - tests/test_revision.py

 - tests/test_workingtree.py

 - tests/workingtree_implementations/*.py.

"""

import bzrlib.errors as errors

from bzrlib.transport import get_transport

from bzrlib.tests import (

                          adapt_modules,

                          default_transport,

                          TestCaseWithTransport,

                          TestLoader,

                          TestSuite,

                          )

from bzrlib.tests.bzrdir_implementations.test_bzrdir import TestCaseWithBzrDir

from bzrlib.tree import RevisionTree

from bzrlib.workingtree import (WorkingTreeFormat,

                                WorkingTreeTestProviderAdapter,

                                _legacy_formats,

                                )

def return_parameter(something):

    """A trivial thunk to return its input."""

    return something

def revision_tree_from_workingtree(tree):

    """Create a revision tree from a working tree."""

    revid = tree.commit('save tree', allow_pointless=True)

    return tree.branch.repository.revision_tree(revid)

class TestTreeImplementationSupport(TestCaseWithTransport):

    def test_revision_tree_from_workingtree(self):

        tree = self.make_branch_and_tree('.')

        tree = revision_tree_from_workingtree(tree)

        self.assertIsInstance(tree, RevisionTree)

class TestCaseWithTree(TestCaseWithBzrDir):

    def make_branch_and_tree(self, relpath):

        made_control = self.make_bzrdir(relpath, format=

            self.workingtree_format._matchingbzrdir)

        made_control.create_repository()

        made_control.create_branch()

        return self.workingtree_format.initialize(made_control)

    def get_tree_no_parents_no_content(self, empty_tree, converter=None):

        """Make a tree with no parents and no contents from empty_tree.

        :param empty_tree: A working tree with no content and no parents to

            modify.

        """

        # convert that to the final shape

        if converter is None:

            converter = self.workingtree_to_test_tree

        return converter(empty_tree)

class TreeTestProviderAdapter(WorkingTreeTestProviderAdapter):

    """Generate test suites for each Tree implementation in bzrlib.

    Currently this covers all working tree formats, and RevisionTree by 

    committing a working tree to create the revision tree.

    """

    def adapt(self, test):

        result = super(TreeTestProviderAdapter, self).adapt(test)

        for adapted_test in result:

            # for working tree adapted tests, preserve the tree

            adapted_test.workingtree_to_test_tree = return_parameter

        default_format = WorkingTreeFormat.get_default_format()

        revision_tree_test = self._clone_test(

            test,

            default_format._matchingbzrdir, 

            default_format,

            RevisionTree.__name__)

        revision_tree_test.workingtree_to_test_tree = revision_tree_from_workingtree

        result.addTest(revision_tree_test)

        return result

def test_suite():

    result = TestSuite()

    test_tree_implementations = [

        'bzrlib.tests.tree_implementations.test_test_trees',

        ]

    adapter = TreeTestProviderAdapter(

        default_transport,

        # None here will cause a readonly decorator to be created

        # by the TestCaseWithTransport.get_readonly_transport method.

        None,

        [(format, format._matchingbzrdir) for format in 

         WorkingTreeFormat._formats.values() + _legacy_formats])

    loader = TestLoader()

    adapt_modules(test_tree_implementations, adapter, loader, result)

    result.addTests(loader.loadTestsFromModuleNames(['bzrlib.tests.tree_implementations']))

    return result