1 files changed, 80 insertions, 0 deletions
diff --git a/bzrlib/tests/test_revisiontree.py b/bzrlib/tests/test_revisiontree.py
new file mode 100644
index 0000000..b24b6d3
--- /dev/null
+++ b/bzrlib/tests/test_revisiontree.py
@@ -0,0 +1,80 @@
+# Copyright (C) 2006, 2008-2011 Canonical Ltd
+# Authors:  Robert Collins <robert.collins@canonical.com>
+#
+# 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+
+"""Tests for the RevisionTree class."""
+
+from bzrlib import (
+    errors,
+    revision,
+    )
+from bzrlib.tests import TestCaseWithTransport
+
+
+class TestTreeWithCommits(TestCaseWithTransport):
+
+    def setUp(self):
+        super(TestTreeWithCommits, self).setUp()
+        self.t = self.make_branch_and_tree('.')
+        self.rev_id = self.t.commit('foo', allow_pointless=True)
+        self.rev_tree = self.t.branch.repository.revision_tree(self.rev_id)
+
+    def test_empty_no_unknowns(self):
+        self.assertEqual([], list(self.rev_tree.unknowns()))
+
+    def test_no_conflicts(self):
+        self.assertEqual([], list(self.rev_tree.conflicts()))
+
+    def test_parents(self):
+        """RevisionTree.parent_ids should match the revision graph."""
+        # XXX: TODO: Should this be a repository_implementation test ?
+        # at the end of the graph, we get []
+        self.assertEqual([], self.rev_tree.get_parent_ids())
+        # do a commit to look further up
+        revid_2 = self.t.commit('bar', allow_pointless=True)
+        self.assertEqual(
+            [self.rev_id],
+            self.t.branch.repository.revision_tree(revid_2).get_parent_ids())
+        # TODO commit a merge and check it is reported correctly.
+
+        # the parents for a revision_tree(NULL_REVISION) are []:
+        self.assertEqual([],
+            self.t.branch.repository.revision_tree(
+                revision.NULL_REVISION).get_parent_ids())
+
+    def test_empty_no_root(self):
+        null_tree = self.t.branch.repository.revision_tree(
+            revision.NULL_REVISION)
+        self.assertIs(None, null_tree.get_root_id())
+
+    def test_get_file_revision_root(self):
+        self.assertEquals(self.rev_id,
+            self.rev_tree.get_file_revision(self.rev_tree.get_root_id()))
+
+    def test_get_file_revision(self):
+        self.build_tree_contents([('a', 'initial')])
+        self.t.add(['a'])
+        revid1 = self.t.commit('add a')
+        revid2 = self.t.commit('another change', allow_pointless=True)
+        tree = self.t.branch.repository.revision_tree(revid2)
+        self.assertEquals(revid1,
+            tree.get_file_revision(tree.path2id('a')))
+
+    def test_get_file_mtime_ghost(self):
+        file_id = iter(self.rev_tree.all_file_ids()).next()
+        self.rev_tree.root_inventory[file_id].revision = 'ghostrev'
+        self.assertRaises(errors.FileTimestampUnavailable, 
+            self.rev_tree.get_file_mtime, file_id)