# -*- coding: utf-8 -*-
#
# Copyright (C)2005-2009 Edgewall Software
# Copyright (C) 2005 Christopher Lenz <cmlenz@gmx.de>
# All rights reserved.
#
# This software is licensed as described in the file COPYING, which
# you should have received as part of this distribution. The terms
# are also available at http://trac.edgewall.org/wiki/TracLicense.
#
# This software consists of voluntary contributions made by many
# individuals. For the exact contribution history, see the revision
# history and logs, available at http://trac.edgewall.org/log/.
#
# Author: Christopher Lenz <cmlenz@gmx.de>

from datetime import datetime
import new
import os.path
import stat
import shutil
import tempfile
import unittest

from StringIO import StringIO

try:
    from svn import core, repos
    has_svn = True
except ImportError:
    has_svn = False

from trac.test import EnvironmentStub, TestSetup
from trac.core import TracError
from trac.resource import Resource, resource_exists
from trac.util.concurrency import get_thread_id
from trac.util.datefmt import utc
from trac.versioncontrol import DbRepositoryProvider, Changeset, Node, \
                                NoSuchChangeset
from tracopt.versioncontrol.svn import svn_fs

REPOS_PATH = os.path.join(tempfile.gettempdir(), 'trac-svnrepos')
REPOS_NAME = 'repo'

HEAD = 22
TETE = 21


class SubversionRepositoryTestSetup(TestSetup):

    def setUp(self):
        dumpfile = open(os.path.join(os.path.split(__file__)[0],
                                     'svnrepos.dump'))

        svn_fs._import_svn()
        core.apr_initialize()
        pool = core.svn_pool_create(None)
        dumpstream = None
        try:
            if os.path.exists(REPOS_PATH):
                print 'trouble ahead with db/rep-cache.db... see #8278'
            r = repos.svn_repos_create(REPOS_PATH, '', '', None, None, pool)
            if hasattr(repos, 'svn_repos_load_fs2'):
                repos.svn_repos_load_fs2(r, dumpfile, StringIO(),
                                        repos.svn_repos_load_uuid_default, '',
                                        0, 0, None, pool)
            else:
                dumpstream = core.svn_stream_from_aprfile(dumpfile, pool)
                repos.svn_repos_load_fs(r, dumpstream, None,
                                        repos.svn_repos_load_uuid_default, '',
                                        None, None, pool)
        finally:
            if dumpstream:
                core.svn_stream_close(dumpstream)
            core.svn_pool_destroy(pool)
            core.apr_terminate()

    def tearDown(self):
        repos.svn_repos_delete(REPOS_PATH)


# -- Re-usable test mixins

class NormalTests(object):

    def test_resource_exists(self):
        repos = Resource('repository', REPOS_NAME)
        self.assertEqual(True, resource_exists(self.env, repos))
        self.assertEqual(False, resource_exists(self.env, repos(id='xxx')))
        node = repos.child('source', u'tête')
        self.assertEqual(True, resource_exists(self.env, node))
        self.assertEqual(False, resource_exists(self.env, node(id='xxx')))
        cset = repos.child('changeset', HEAD)
        self.assertEqual(True, resource_exists(self.env, cset))
        self.assertEqual(False, resource_exists(self.env, cset(id=123456)))
                         
    def test_repos_normalize_path(self):
        self.assertEqual('/', self.repos.normalize_path('/'))
        self.assertEqual('/', self.repos.normalize_path(''))
        self.assertEqual('/', self.repos.normalize_path(None))
        self.assertEqual(u'tête', self.repos.normalize_path(u'tête'))
        self.assertEqual(u'tête', self.repos.normalize_path(u'/tête'))
        self.assertEqual(u'tête', self.repos.normalize_path(u'tête/'))
        self.assertEqual(u'tête', self.repos.normalize_path(u'/tête/'))

    def test_repos_normalize_rev(self):
        self.assertEqual(HEAD, self.repos.normalize_rev('latest'))
        self.assertEqual(HEAD, self.repos.normalize_rev('head'))
        self.assertEqual(HEAD, self.repos.normalize_rev(''))
        self.assertRaises(NoSuchChangeset,
                          self.repos.normalize_rev, 'something else')
        self.assertEqual(HEAD, self.repos.normalize_rev(None))
        self.assertEqual(11, self.repos.normalize_rev('11'))
        self.assertEqual(11, self.repos.normalize_rev(11))

    def test_rev_navigation(self):
        self.assertEqual(1, self.repos.oldest_rev)
        self.assertEqual(None, self.repos.previous_rev(0))
        self.assertEqual(None, self.repos.previous_rev(1))
        self.assertEqual(HEAD, self.repos.youngest_rev)
        self.assertEqual(6, self.repos.next_rev(5))
        self.assertEqual(7, self.repos.next_rev(6))
        # ...
        self.assertEqual(None, self.repos.next_rev(HEAD))
        self.assertRaises(NoSuchChangeset, self.repos.normalize_rev, HEAD + 1)

    def test_rev_path_navigation(self):
        self.assertEqual(1, self.repos.oldest_rev)
        self.assertEqual(None, self.repos.previous_rev(0, u'tête'))
        self.assertEqual(None, self.repos.previous_rev(1, u'tête'))
        self.assertEqual(HEAD, self.repos.youngest_rev)
        self.assertEqual(6, self.repos.next_rev(5, u'tête'))
        self.assertEqual(13, self.repos.next_rev(6, u'tête'))
        # ...
        self.assertEqual(None, self.repos.next_rev(HEAD, u'tête'))
        # test accentuated characters
        self.assertEqual(None,
                         self.repos.previous_rev(17, u'tête/R\xe9sum\xe9.txt'))
        self.assertEqual(17, self.repos.next_rev(16, u'tête/R\xe9sum\xe9.txt'))

    def test_has_node(self):
        self.assertEqual(False, self.repos.has_node(u'/tête/dir1', 3))
        self.assertEqual(True, self.repos.has_node(u'/tête/dir1', 4))
        self.assertEqual(True, self.repos.has_node(u'/tête/dir1'))
        
    def test_get_node(self):
        node = self.repos.get_node(u'/tête')
        self.assertEqual(u'tête', node.name)
        self.assertEqual(u'/tête', node.path)
        self.assertEqual(Node.DIRECTORY, node.kind)
        self.assertEqual(HEAD, node.rev)
        self.assertEqual(TETE, node.created_rev)
        self.assertEqual(datetime(2007, 4, 30, 17, 45, 26, 234375, utc),
                         node.last_modified)
        node = self.repos.get_node(u'/tête/README.txt')
        self.assertEqual('README.txt', node.name)
        self.assertEqual(u'/tête/README.txt', node.path)
        self.assertEqual(Node.FILE, node.kind)
        self.assertEqual(HEAD, node.rev)
        self.assertEqual(3, node.created_rev)
        self.assertEqual(datetime(2005, 4, 1, 13, 24, 58, 234643, utc),
                         node.last_modified)

    def test_get_node_specific_rev(self):
        node = self.repos.get_node(u'/tête', 1)
        self.assertEqual(u'tête', node.name)
        self.assertEqual(u'/tête', node.path)
        self.assertEqual(Node.DIRECTORY, node.kind)
        self.assertEqual(1, node.rev)
        self.assertEqual(datetime(2005, 4, 1, 10, 0, 52, 353248, utc),
                         node.last_modified)
        node = self.repos.get_node(u'/tête/README.txt', 2)
        self.assertEqual('README.txt', node.name)
        self.assertEqual(u'/tête/README.txt', node.path)
        self.assertEqual(Node.FILE, node.kind)
        self.assertEqual(2, node.rev)
        self.assertEqual(datetime(2005, 4, 1, 13, 12, 18, 216267, utc),
                         node.last_modified)

    def test_get_dir_entries(self):
        node = self.repos.get_node(u'/tête')
        entries = node.get_entries()
        self.assertEqual('dir1', entries.next().name)
        self.assertEqual('mpp_proc', entries.next().name)
        self.assertEqual('v2', entries.next().name)
        self.assertEqual('README3.txt', entries.next().name)
        self.assertEqual(u'R\xe9sum\xe9.txt', entries.next().name)
        self.assertEqual('README.txt', entries.next().name)
        self.assertRaises(StopIteration, entries.next)

    def test_get_file_entries(self):
        node = self.repos.get_node(u'/tête/README.txt')
        entries = node.get_entries()
        self.assertRaises(StopIteration, entries.next)

    def test_get_dir_content(self):
        node = self.repos.get_node(u'/tête')
        self.assertEqual(None, node.content_length)
        self.assertEqual(None, node.content_type)
        self.assertEqual(None, node.get_content())

    def test_get_file_content(self):
        node = self.repos.get_node(u'/tête/README.txt')
        self.assertEqual(8, node.content_length)
        self.assertEqual('text/plain', node.content_type)
        self.assertEqual('A test.\n', node.get_content().read())

    def test_get_dir_properties(self):
        f = self.repos.get_node(u'/tête')
        props = f.get_properties()
        self.assertEqual(1, len(props))

    def test_get_file_properties(self):
        f = self.repos.get_node(u'/tête/README.txt')
        props = f.get_properties()
        self.assertEqual('native', props['svn:eol-style'])
        self.assertEqual('text/plain', props['svn:mime-type'])

    def test_created_path_rev(self):
        node = self.repos.get_node(u'/tête/README3.txt', 15)
        self.assertEqual(15, node.rev)
        self.assertEqual(u'/tête/README3.txt', node.path)
        self.assertEqual(14, node.created_rev)
        self.assertEqual(u'tête/README3.txt', node.created_path)

    def test_created_path_rev_parent_copy(self):
        node = self.repos.get_node('/tags/v1/README.txt', 15)
        self.assertEqual(15, node.rev)
        self.assertEqual('/tags/v1/README.txt', node.path)
        self.assertEqual(3, node.created_rev)
        self.assertEqual(u'tête/README.txt', node.created_path)

    # Revision Log / node history 

    def test_get_node_history(self):
        node = self.repos.get_node(u'/tête/README3.txt')
        history = node.get_history()
        self.assertEqual((u'tête/README3.txt', 14, 'copy'), history.next())
        self.assertEqual((u'tête/README2.txt', 6, 'copy'), history.next())
        self.assertEqual((u'tête/README.txt', 3, 'edit'), history.next())
        self.assertEqual((u'tête/README.txt', 2, 'add'), history.next())
        self.assertRaises(StopIteration, history.next)

    def test_get_node_history_limit(self):
        node = self.repos.get_node(u'/tête/README3.txt')
        history = node.get_history(2)
        self.assertEqual((u'tête/README3.txt', 14, 'copy'), history.next())
        self.assertEqual((u'tête/README2.txt', 6, 'copy'), history.next())
        self.assertRaises(StopIteration, history.next)

    def test_get_node_history_follow_copy(self):
        node = self.repos.get_node('/tags/v1/README.txt')
        history = node.get_history()
        self.assertEqual(('tags/v1/README.txt', 7, 'copy'), history.next())
        self.assertEqual((u'tête/README.txt', 3, 'edit'), history.next())
        self.assertEqual((u'tête/README.txt', 2, 'add'), history.next())
        self.assertRaises(StopIteration, history.next)

    def test_get_copy_ancestry(self):
        node = self.repos.get_node('/tags/v1/README.txt')
        ancestry = node.get_copy_ancestry()
        self.assertEqual([(u'tête/README.txt', 6)], ancestry)
        for path, rev in ancestry:
            self.repos.get_node(path, rev) # shouldn't raise NoSuchNode

        node = self.repos.get_node(u'/tête/README3.txt')
        ancestry = node.get_copy_ancestry()
        self.assertEqual([(u'tête/README2.txt', 13), 
                          (u'tête/README.txt', 3)], ancestry)
        for path, rev in ancestry:
            self.repos.get_node(path, rev) # shouldn't raise NoSuchNode

        node = self.repos.get_node('/branches/v1x')
        ancestry = node.get_copy_ancestry()
        self.assertEqual([(u'tags/v1.1', 11),
                          (u'branches/v1x', 9), 
                          (u'tags/v1', 7), 
                          (u'tête', 6)], ancestry)
        for path, rev in ancestry:
            self.repos.get_node(path, rev) # shouldn't raise NoSuchNode

    def test_get_copy_ancestry_for_move(self):
        node = self.repos.get_node(u'/tête/dir1/dir2', 5)
        ancestry = node.get_copy_ancestry()
        self.assertEqual([(u'tête/dir2', 4)], ancestry)
        for path, rev in ancestry:
            self.repos.get_node(path, rev) # shouldn't raise NoSuchNode

    def test_get_branch_origin(self):
        node = self.repos.get_node('/tags/v1/README.txt')
        self.assertEqual(7, node.get_branch_origin())
        node = self.repos.get_node(u'/tête/README3.txt')
        self.assertEqual(14, node.get_branch_origin())
        node = self.repos.get_node('/branches/v1x')
        self.assertEqual(12, node.get_branch_origin())
        node = self.repos.get_node(u'/tête/dir1/dir2', 5)
        self.assertEqual(5, node.get_branch_origin())

    # Revision Log / path history 

    def test_get_path_history(self):
        history = self.repos.get_path_history(u'/tête/README2.txt', None)
        self.assertEqual((u'tête/README2.txt', 14, 'delete'), history.next())
        self.assertEqual((u'tête/README2.txt', 6, 'copy'), history.next())
        self.assertEqual((u'tête/README.txt', 3, 'unknown'), history.next())
        self.assertRaises(StopIteration, history.next)

    def test_get_path_history_copied_file(self):
        history = self.repos.get_path_history('/tags/v1/README.txt', None)
        self.assertEqual(('tags/v1/README.txt', 7, 'copy'), history.next())
        self.assertEqual((u'tête/README.txt', 3, 'unknown'), history.next())
        self.assertRaises(StopIteration, history.next)
        
    def test_get_path_history_copied_dir(self):
        history = self.repos.get_path_history('/branches/v1x', None)
        self.assertEqual(('branches/v1x', 12, 'copy'), history.next())
        self.assertEqual(('tags/v1.1', 10, 'unknown'), history.next())
        self.assertEqual(('branches/v1x', 11, 'delete'), history.next())
        self.assertEqual(('branches/v1x', 9, 'edit'), history.next())
        self.assertEqual(('branches/v1x', 8, 'copy'), history.next())
        self.assertEqual(('tags/v1', 7, 'unknown'), history.next())
        self.assertRaises(StopIteration, history.next)

    # Diffs

    def _cmp_diff(self, expected, got):
        if expected[0]:
            old = self.repos.get_node(*expected[0])
            self.assertEqual((old.path, old.rev), (got[0].path, got[0].rev))
        if expected[1]:
            new = self.repos.get_node(*expected[1])
            self.assertEqual((new.path, new.rev), (got[1].path, got[1].rev))
        self.assertEqual(expected[2], (got[2], got[3]))
        
    def test_diff_file_different_revs(self):
        diffs = self.repos.get_changes(u'tête/README.txt', 2,
                                       u'tête/README.txt', 3)
        self._cmp_diff(((u'tête/README.txt', 2),
                        (u'tête/README.txt', 3),
                        (Node.FILE, Changeset.EDIT)), diffs.next())
        self.assertRaises(StopIteration, diffs.next)

    def test_diff_file_different_files(self):
        diffs = self.repos.get_changes('branches/v1x/README.txt', 12,
                                      'branches/v1x/README2.txt', 12)
        self._cmp_diff((('branches/v1x/README.txt', 12),
                        ('branches/v1x/README2.txt', 12),
                        (Node.FILE, Changeset.EDIT)), diffs.next())
        self.assertRaises(StopIteration, diffs.next)

    def test_diff_file_no_change(self):
        diffs = self.repos.get_changes(u'tête/README.txt', 7,
                                      'tags/v1/README.txt', 7)
        self.assertRaises(StopIteration, diffs.next)
 
    def test_diff_dir_different_revs(self):
        diffs = self.repos.get_changes(u'tête', 4, u'tête', 8)
        self._cmp_diff((None, (u'tête/dir1/dir2', 8),
                        (Node.DIRECTORY, Changeset.ADD)), diffs.next())
        self._cmp_diff((None, (u'tête/dir1/dir3', 8),
                        (Node.DIRECTORY, Changeset.ADD)), diffs.next())
        self._cmp_diff((None, (u'tête/README2.txt', 8),
                        (Node.FILE, Changeset.ADD)), diffs.next())
        self._cmp_diff(((u'tête/dir2', 4), None,
                        (Node.DIRECTORY, Changeset.DELETE)), diffs.next())
        self._cmp_diff(((u'tête/dir3', 4), None,
                        (Node.DIRECTORY, Changeset.DELETE)), diffs.next())
        self.assertRaises(StopIteration, diffs.next)

    def test_diff_dir_different_dirs(self):
        diffs = self.repos.get_changes(u'tête', 1, 'branches/v1x', 12)
        self._cmp_diff((None, ('branches/v1x/dir1', 12),
                        (Node.DIRECTORY, Changeset.ADD)), diffs.next())
        self._cmp_diff((None, ('branches/v1x/dir1/dir2', 12),
                        (Node.DIRECTORY, Changeset.ADD)), diffs.next())
        self._cmp_diff((None, ('branches/v1x/dir1/dir3', 12),
                        (Node.DIRECTORY, Changeset.ADD)), diffs.next())
        self._cmp_diff((None, ('branches/v1x/README.txt', 12),
                        (Node.FILE, Changeset.ADD)), diffs.next())
        self._cmp_diff((None, ('branches/v1x/README2.txt', 12),
                        (Node.FILE, Changeset.ADD)), diffs.next())
        self.assertRaises(StopIteration, diffs.next)

    def test_diff_dir_no_change(self):
        diffs = self.repos.get_changes(u'tête', 7,
                                      'tags/v1', 7)
        self.assertRaises(StopIteration, diffs.next)
        
    # Changesets

    def test_changeset_repos_creation(self):
        chgset = self.repos.get_changeset(0)
        self.assertEqual(0, chgset.rev)
        self.assertEqual('', chgset.message)
        self.assertEqual('', chgset.author)
        self.assertEqual(datetime(2005, 4, 1, 9, 57, 41, 312767, utc),
                         chgset.date)
        self.assertRaises(StopIteration, chgset.get_changes().next)

    def test_changeset_added_dirs(self):
        chgset = self.repos.get_changeset(1)
        self.assertEqual(1, chgset.rev)
        self.assertEqual('Initial directory layout.', chgset.message)
        self.assertEqual('john', chgset.author)
        self.assertEqual(datetime(2005, 4, 1, 10, 0, 52, 353248, utc),
                         chgset.date)

        changes = chgset.get_changes()
        self.assertEqual(('branches', Node.DIRECTORY, Changeset.ADD, None, -1),
                         changes.next())
        self.assertEqual(('tags', Node.DIRECTORY, Changeset.ADD, None, -1),
                         changes.next())
        self.assertEqual((u'tête', Node.DIRECTORY, Changeset.ADD, None, -1),
                         changes.next())
        self.assertRaises(StopIteration, changes.next)

    def test_changeset_file_edit(self):
        chgset = self.repos.get_changeset(3)
        self.assertEqual(3, chgset.rev)
        self.assertEqual('Fixed README.\n', chgset.message)
        self.assertEqual('kate', chgset.author)
        self.assertEqual(datetime(2005, 4, 1, 13, 24, 58, 234643, utc),
                         chgset.date)

        changes = chgset.get_changes()
        self.assertEqual((u'tête/README.txt', Node.FILE, Changeset.EDIT,
                          u'tête/README.txt', 2), changes.next())
        self.assertRaises(StopIteration, changes.next)

    def test_changeset_dir_moves(self):
        chgset = self.repos.get_changeset(5)
        self.assertEqual(5, chgset.rev)
        self.assertEqual('Moved directories.', chgset.message)
        self.assertEqual('kate', chgset.author)
        self.assertEqual(datetime(2005, 4, 1, 16, 25, 39, 658099, utc),
                         chgset.date)

        changes = chgset.get_changes()
        self.assertEqual((u'tête/dir1/dir2', Node.DIRECTORY, Changeset.MOVE,
                          u'tête/dir2', 4), changes.next())
        self.assertEqual((u'tête/dir1/dir3', Node.DIRECTORY, Changeset.MOVE,
                          u'tête/dir3', 4), changes.next())
        self.assertRaises(StopIteration, changes.next)

    def test_changeset_file_copy(self):
        chgset = self.repos.get_changeset(6)
        self.assertEqual(6, chgset.rev)
        self.assertEqual('More things to read', chgset.message)
        self.assertEqual('john', chgset.author)
        self.assertEqual(datetime(2005, 4, 1, 18, 56, 46, 985846, utc),
                         chgset.date)

        changes = chgset.get_changes()
        self.assertEqual((u'tête/README2.txt', Node.FILE, Changeset.COPY,
                          u'tête/README.txt', 3), changes.next())
        self.assertRaises(StopIteration, changes.next)

    def test_changeset_root_propset(self):
        chgset = self.repos.get_changeset(13)
        self.assertEqual(13, chgset.rev)
        self.assertEqual('Setting property on the repository_dir root',
                         chgset.message)
        changes = chgset.get_changes()
        self.assertEqual(('/', Node.DIRECTORY, Changeset.EDIT, '/', 12),
                         changes.next())
        self.assertEqual((u'tête', Node.DIRECTORY, Changeset.EDIT, u'tête', 6),
                         changes.next())
        self.assertRaises(StopIteration, changes.next)

    def test_changeset_base_path_rev(self):
        chgset = self.repos.get_changeset(9)
        self.assertEqual(9, chgset.rev)
        changes = chgset.get_changes()
        self.assertEqual(('branches/v1x/README.txt', Node.FILE,
                          Changeset.EDIT, u'tête/README.txt', 3),
                         changes.next())
        self.assertRaises(StopIteration, changes.next)

    def test_changeset_rename_and_edit(self):
        chgset = self.repos.get_changeset(14)
        self.assertEqual(14, chgset.rev)
        changes = chgset.get_changes()
        self.assertEqual((u'tête/README3.txt', Node.FILE,
                          Changeset.MOVE, u'tête/README2.txt', 13),
                         changes.next())
        self.assertRaises(StopIteration, changes.next)

    def test_changeset_edit_after_wc2wc_copy__original_deleted(self):
        chgset = self.repos.get_changeset(16)
        self.assertEqual(16, chgset.rev)
        changes = chgset.get_changes()
        self.assertEqual(('branches/v2', Node.DIRECTORY, Changeset.COPY,
                          'tags/v1.1', 14),
                         changes.next())
        self.assertEqual(('branches/v2/README2.txt', Node.FILE,
                          Changeset.EDIT, u'tête/README2.txt', 6),
                         changes.next())
        self.assertRaises(StopIteration, changes.next)

    def test_fancy_rename_double_delete(self):
        chgset = self.repos.get_changeset(19)
        self.assertEqual(19, chgset.rev)
        changes = chgset.get_changes()
        self.assertEqual((u'tête/mpp_proc', Node.DIRECTORY,
                          Changeset.MOVE, u'tête/Xprimary_proc', 18),
                         changes.next())
        self.assertEqual((u'tête/mpp_proc/Xprimary_pkg.vhd',
                          Node.FILE, Changeset.DELETE,
                          u'tête/Xprimary_proc/Xprimary_pkg.vhd', 18),
                         changes.next())
        self.assertEqual((u'tête/mpp_proc/Xprimary_proc', Node.DIRECTORY,
                          Changeset.COPY, u'tête/Xprimary_proc', 18),
                         changes.next())
        self.assertEqual((u'tête/mpp_proc/Xprimary_proc/Xprimary_pkg.vhd',
                          Node.FILE, Changeset.DELETE,
                          u'tête/Xprimary_proc/Xprimary_pkg.vhd', 18),
                         changes.next())
        self.assertRaises(StopIteration, changes.next)

    def test_copy_with_deletions_below_copy(self):
        """Regression test for #4900."""
        chgset = self.repos.get_changeset(22)
        self.assertEqual(22, chgset.rev)
        changes = chgset.get_changes()
        self.assertEqual((u'branches/v3', 'dir', 'copy',
                          u'tête', 21), changes.next())
        self.assertEqual((u'branches/v3/dir1', 'dir', 'delete',
                          u'tête/dir1', 21), changes.next())
        self.assertEqual((u'branches/v3/mpp_proc', 'dir', 'delete',
                          u'tête/mpp_proc', 21), changes.next())
        self.assertEqual((u'branches/v3/v2', 'dir', 'delete',
                          u'tête/v2', 21), changes.next())
        self.assertRaises(StopIteration, changes.next)

    def test_changeset_utf_8(self):
        chgset = self.repos.get_changeset(20)
        self.assertEqual(20, chgset.rev)
        self.assertEqual(u'Chez moi ça marche\n', chgset.message)
        self.assertEqual(u'Jonas Borgström', chgset.author)



class ScopedTests(object):

    def test_repos_normalize_path(self):
        self.assertEqual('/', self.repos.normalize_path('/'))
        self.assertEqual('/', self.repos.normalize_path(''))
        self.assertEqual('/', self.repos.normalize_path(None))
        self.assertEqual('dir1', self.repos.normalize_path('dir1'))
        self.assertEqual('dir1', self.repos.normalize_path('/dir1'))
        self.assertEqual('dir1', self.repos.normalize_path('dir1/'))
        self.assertEqual('dir1', self.repos.normalize_path('/dir1/'))

    def test_repos_normalize_rev(self):
        self.assertEqual(TETE, self.repos.normalize_rev('latest'))
        self.assertEqual(TETE, self.repos.normalize_rev('head'))
        self.assertEqual(TETE, self.repos.normalize_rev(''))
        self.assertEqual(TETE, self.repos.normalize_rev(None))
        self.assertEqual(5, self.repos.normalize_rev('5'))
        self.assertEqual(5, self.repos.normalize_rev(5))

    def test_rev_navigation(self):
        self.assertEqual(1, self.repos.oldest_rev)
        self.assertEqual(None, self.repos.previous_rev(0))
        self.assertEqual(1, self.repos.previous_rev(2))
        self.assertEqual(TETE, self.repos.youngest_rev)
        self.assertEqual(2, self.repos.next_rev(1))
        self.assertEqual(3, self.repos.next_rev(2))
        # ...
        self.assertEqual(None, self.repos.next_rev(TETE))

    def test_has_node(self):
        self.assertEqual(False, self.repos.has_node('/dir1', 3))
        self.assertEqual(True, self.repos.has_node('/dir1', 4))

    def test_get_node(self):
        node = self.repos.get_node('/dir1')
        self.assertEqual('dir1', node.name)
        self.assertEqual('/dir1', node.path)
        self.assertEqual(Node.DIRECTORY, node.kind)
        self.assertEqual(TETE, node.rev)
        self.assertEqual(5, node.created_rev)
        self.assertEqual(datetime(2005, 4, 1, 16, 25, 39, 658099, utc),
                         node.last_modified)
        node = self.repos.get_node('/README.txt')
        self.assertEqual('README.txt', node.name)
        self.assertEqual('/README.txt', node.path)
        self.assertEqual(Node.FILE, node.kind)
        self.assertEqual(TETE, node.rev)
        self.assertEqual(3, node.created_rev)
        self.assertEqual(datetime(2005, 4, 1, 13, 24, 58, 234643, utc),
                         node.last_modified)

    def test_get_node_specific_rev(self):
        node = self.repos.get_node('/dir1', 4)
        self.assertEqual('dir1', node.name)
        self.assertEqual('/dir1', node.path)
        self.assertEqual(Node.DIRECTORY, node.kind)
        self.assertEqual(4, node.rev)
        self.assertEqual(datetime(2005, 4, 1, 15, 42, 35, 450595, utc),
                         node.last_modified)
        node = self.repos.get_node('/README.txt', 2)
        self.assertEqual('README.txt', node.name)
        self.assertEqual('/README.txt', node.path)
        self.assertEqual(Node.FILE, node.kind)
        self.assertEqual(2, node.rev)
        self.assertEqual(datetime(2005, 4, 1, 13, 12, 18, 216267, utc),
                         node.last_modified)

    def test_get_dir_entries(self):
        node = self.repos.get_node('/')
        entries = node.get_entries()
        self.assertEqual('dir1', entries.next().name)
        self.assertEqual('mpp_proc', entries.next().name)
        self.assertEqual('v2', entries.next().name)
        self.assertEqual('README3.txt', entries.next().name)
        self.assertEqual(u'R\xe9sum\xe9.txt', entries.next().name)
        self.assertEqual('README.txt', entries.next().name)
        self.assertRaises(StopIteration, entries.next)

    def test_get_file_entries(self):
        node = self.repos.get_node('/README.txt')
        entries = node.get_entries()
        self.assertRaises(StopIteration, entries.next)

    def test_get_dir_content(self):
        node = self.repos.get_node('/dir1')
        self.assertEqual(None, node.content_length)
        self.assertEqual(None, node.content_type)
        self.assertEqual(None, node.get_content())

    def test_get_file_content(self):
        node = self.repos.get_node('/README.txt')
        self.assertEqual(8, node.content_length)
        self.assertEqual('text/plain', node.content_type)
        self.assertEqual('A test.\n', node.get_content().read())

    def test_get_dir_properties(self):
        f = self.repos.get_node('/dir1')
        props = f.get_properties()
        self.assertEqual(0, len(props))

    def test_get_file_properties(self):
        f = self.repos.get_node('/README.txt')
        props = f.get_properties()
        self.assertEqual('native', props['svn:eol-style'])
        self.assertEqual('text/plain', props['svn:mime-type'])

    # Revision Log / node history 

    def test_get_history_scope(self): 
        """Regression test for #9504"""
        node = self.repos.get_node('/')
        history = list(node.get_history())
        self.assertEqual(('/', 1, 'add'), history[-1])
        initial_cset = self.repos.get_changeset(history[-1][1])
        self.assertEqual(1, initial_cset.rev)

    def test_get_node_history(self):
        node = self.repos.get_node('/README3.txt')
        history = node.get_history()
        self.assertEqual(('README3.txt', 14, 'copy'), history.next())
        self.assertEqual(('README2.txt', 6, 'copy'), history.next())
        self.assertEqual(('README.txt', 3, 'edit'), history.next())
        self.assertEqual(('README.txt', 2, 'add'), history.next())
        self.assertRaises(StopIteration, history.next)

    def test_get_node_history_follow_copy(self):
        node = self.repos.get_node('dir1/dir3', )
        history = node.get_history()
        self.assertEqual(('dir1/dir3', 5, 'copy'), history.next())
        self.assertEqual(('dir3', 4, 'add'), history.next())
        self.assertRaises(StopIteration, history.next)

    def test_get_copy_ancestry(self):
        node = self.repos.get_node(u'/README3.txt')
        ancestry = node.get_copy_ancestry()
        self.assertEqual([(u'README2.txt', 13), 
                          (u'README.txt', 3)], ancestry)
        for path, rev in ancestry:
            self.repos.get_node(path, rev) # shouldn't raise NoSuchNode

    def test_get_copy_ancestry_for_move(self):
        node = self.repos.get_node(u'/dir1/dir2', 5)
        ancestry = node.get_copy_ancestry()
        self.assertEqual([(u'dir2', 4)], ancestry)
        for path, rev in ancestry:
            self.repos.get_node(path, rev) # shouldn't raise NoSuchNode

    def test_get_branch_origin(self):
        node = self.repos.get_node(u'/README3.txt')
        self.assertEqual(14, node.get_branch_origin())
        node = self.repos.get_node(u'/dir1/dir2', 5)
        self.assertEqual(5, node.get_branch_origin())

    # Revision Log / path history 

    def test_get_path_history(self):
        history = self.repos.get_path_history('dir3', None)
        self.assertEqual(('dir3', 5, 'delete'), history.next())
        self.assertEqual(('dir3', 4, 'add'), history.next())
        self.assertRaises(StopIteration, history.next)

    def test_get_path_history_copied_file(self):
        history = self.repos.get_path_history('README3.txt', None)
        self.assertEqual(('README3.txt', 14, 'copy'), history.next())
        self.assertEqual(('README2.txt', 6, 'unknown'), history.next())
        self.assertRaises(StopIteration, history.next)
        
    def test_get_path_history_copied_dir(self):
        history = self.repos.get_path_history('dir1/dir3', None)
        self.assertEqual(('dir1/dir3', 5, 'copy'), history.next())
        self.assertEqual(('dir3', 4, 'unknown'), history.next())
        self.assertRaises(StopIteration, history.next)

    def test_changeset_repos_creation(self):
        chgset = self.repos.get_changeset(0)
        self.assertEqual(0, chgset.rev)
        self.assertEqual('', chgset.message)
        self.assertEqual('', chgset.author)
        self.assertEqual(datetime(2005, 4, 1, 9, 57, 41, 312767, utc),
                         chgset.date)
        self.assertRaises(StopIteration, chgset.get_changes().next)

    def test_changeset_added_dirs(self):
        chgset = self.repos.get_changeset(4)
        self.assertEqual(4, chgset.rev)
        self.assertEqual('More directories.', chgset.message)
        self.assertEqual('john', chgset.author)
        self.assertEqual(datetime(2005, 4, 1, 15, 42, 35, 450595, utc),
                         chgset.date)

        changes = chgset.get_changes()
        self.assertEqual(('dir1', Node.DIRECTORY, 'add', None, -1),
                         changes.next())
        self.assertEqual(('dir2', Node.DIRECTORY, 'add', None, -1),
                         changes.next())
        self.assertEqual(('dir3', Node.DIRECTORY, 'add', None, -1),
                         changes.next())
        self.assertRaises(StopIteration, changes.next)

    def test_changeset_file_edit(self):
        chgset = self.repos.get_changeset(3)
        self.assertEqual(3, chgset.rev)
        self.assertEqual('Fixed README.\n', chgset.message)
        self.assertEqual('kate', chgset.author)
        self.assertEqual(datetime(2005, 4, 1, 13, 24, 58, 234643, utc),
                         chgset.date)

        changes = chgset.get_changes()
        self.assertEqual(('README.txt', Node.FILE, Changeset.EDIT,
                          'README.txt', 2), changes.next())
        self.assertRaises(StopIteration, changes.next)

    def test_changeset_dir_moves(self):
        chgset = self.repos.get_changeset(5)
        self.assertEqual(5, chgset.rev)
        self.assertEqual('Moved directories.', chgset.message)
        self.assertEqual('kate', chgset.author)
        self.assertEqual(datetime(2005, 4, 1, 16, 25, 39, 658099, utc),
                         chgset.date)

        changes = chgset.get_changes()
        self.assertEqual(('dir1/dir2', Node.DIRECTORY, Changeset.MOVE,
                          'dir2', 4), changes.next())
        self.assertEqual(('dir1/dir3', Node.DIRECTORY, Changeset.MOVE,
                          'dir3', 4), changes.next())
        self.assertRaises(StopIteration, changes.next)

    def test_changeset_file_copy(self):
        chgset = self.repos.get_changeset(6)
        self.assertEqual(6, chgset.rev)
        self.assertEqual('More things to read', chgset.message)
        self.assertEqual('john', chgset.author)
        self.assertEqual(datetime(2005, 4, 1, 18, 56, 46, 985846, utc),
                         chgset.date)

        changes = chgset.get_changes()
        self.assertEqual(('README2.txt', Node.FILE, Changeset.COPY,
                          'README.txt', 3), changes.next())
        self.assertRaises(StopIteration, changes.next)

    def test_changeset_root_propset(self):
        chgset = self.repos.get_changeset(13)
        self.assertEqual(13, chgset.rev)
        self.assertEqual('Setting property on the repository_dir root',
                         chgset.message)
        changes = chgset.get_changes()
        self.assertEqual(('/', Node.DIRECTORY, Changeset.EDIT, '/', 6),
                         changes.next())
        self.assertRaises(StopIteration, changes.next)

    def test_changeset_copy_from_outside_and_delete(self):
        chgset = self.repos.get_changeset(21)
        self.assertEqual(21, chgset.rev)
        self.assertEqual('copy from outside of the scope + delete',
                         chgset.message)
        changes = chgset.get_changes()
        self.assertEqual(('v2', Node.DIRECTORY, Changeset.ADD, None, -1),
                         changes.next())
        self.assertEqual(('v2/README2.txt', Node.FILE, Changeset.DELETE,
                          None, -1), changes.next())
        self.assertEqual(('v2/dir1', Node.DIRECTORY, Changeset.DELETE,
                          None, -1), changes.next())
        self.assertRaises(StopIteration, changes.next)


class RecentPathScopedTests(object):

    def test_rev_navigation(self):
        self.assertEqual(False, self.repos.has_node('/', 1))
        self.assertEqual(False, self.repos.has_node('/', 2))
        self.assertEqual(False, self.repos.has_node('/', 3))
        self.assertEqual(True, self.repos.has_node('/', 4))
        # We can't make this work anymore because of #5213.
        # self.assertEqual(4, self.repos.oldest_rev)
        self.assertEqual(1, self.repos.oldest_rev) # should really be 4...
        self.assertEqual(None, self.repos.previous_rev(4))


class NonSelfContainedScopedTests(object):

    def test_mixed_changeset(self):
        chgset = self.repos.get_changeset(7)
        self.assertEqual(7, chgset.rev)
        changes = chgset.get_changes()
        self.assertEqual(('/', Node.DIRECTORY, Changeset.ADD, None, -1),
                         changes.next())
        self.assertRaises(TracError, lambda: self.repos.get_node(None, 6))


class AnotherNonSelfContainedScopedTests(object):

    def test_mixed_changeset_with_edit(self):
        chgset = self.repos.get_changeset(9)
        self.assertEqual(9, chgset.rev)
        changes = chgset.get_changes()
        self.assertEqual(('v1x/README.txt', Node.FILE, Changeset.EDIT,
                          'v1x/README.txt', 8),
                         changes.next())


# -- Test cases for SubversionRepository

class SubversionRepositoryTestCase(unittest.TestCase):
    
    def setUp(self):
        self.env = EnvironmentStub()
        repositories = self.env.config['repositories']
        DbRepositoryProvider(self.env).add_repository(REPOS_NAME, self.path,
                                                      'direct-svnfs')
        self.repos = self.env.get_repository(REPOS_NAME)

    def tearDown(self):
        self.env.reset_db()
        # needed to avoid issue with 'WindowsError: The process cannot access
        # the file ... being used by another process: ...\rep-cache.db'
        self.env.shutdown(get_thread_id())


# -- Test cases for SvnCachedRepository

class SvnCachedRepositoryTestCase(unittest.TestCase):
    
    def setUp(self):
        self.env = EnvironmentStub()
        DbRepositoryProvider(self.env).add_repository(REPOS_NAME, self.path,
                                                      'svn')
        self.repos = self.env.get_repository(REPOS_NAME)
        self.repos.sync()

    def tearDown(self):
        self.env.reset_db()
        self.repos.close()
        self.repos = None


def suite():
    suite = unittest.TestSuite()
    if has_svn:
        tests = [(NormalTests, ''),
                 (ScopedTests, u'/tête'),
                 (RecentPathScopedTests, u'/tête/dir1'),
                 (NonSelfContainedScopedTests, '/tags/v1'),
                 (AnotherNonSelfContainedScopedTests, '/branches'),
                 ]
        skipped = {
            'SvnCachedRepositoryNormalTests': [
                'test_changeset_repos_creation',
                ],
            'SvnCachedRepositoryScopedTests': [
                'test_changeset_repos_creation',
                'test_rev_navigation',
                ],
            }
        for test, scope in tests:
            tc = new.classobj('SubversionRepository' + test.__name__,
                              (SubversionRepositoryTestCase, test),
                              {'path': REPOS_PATH + scope})
            suite.addTest(unittest.makeSuite(
                tc, 'test', suiteClass=SubversionRepositoryTestSetup))
            tc = new.classobj('SvnCachedRepository' + test.__name__,
                              (SvnCachedRepositoryTestCase, test),
                              {'path': REPOS_PATH + scope})
            for skip in skipped.get(tc.__name__, []):
                setattr(tc, skip, lambda self: None) # no skip, so we cheat...
            suite.addTest(unittest.makeSuite(
                tc, 'test', suiteClass=SubversionRepositoryTestSetup))
    else:
        print("SKIP: tracopt/versioncontrol/svn/tests/svn_fs.py (no svn "
              "bindings)")
    return suite

if __name__ == '__main__':
    runner = unittest.TextTestRunner()
    runner.run(suite())
