1 files changed, 54 insertions, 0 deletions
diff --git a/bzrlib/tests/per_workingtree/test_changes_from.py b/bzrlib/tests/per_workingtree/test_changes_from.py
new file mode 100644
index 0000000..65a1e12
--- /dev/null
+++ b/bzrlib/tests/per_workingtree/test_changes_from.py
@@ -0,0 +1,54 @@
+# Copyright (C) 2006 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+
+"""Test Tree.changes_from() for WorkingTree specific scenarios."""
+
+from bzrlib import revision
+from bzrlib.tests.per_workingtree import TestCaseWithWorkingTree
+
+
+class TestChangesFrom(TestCaseWithWorkingTree):
+
+    def setUp(self):
+        super(TestChangesFrom, self).setUp()
+        self.tree = self.make_branch_and_tree('tree')
+        files = ['a', 'b/', 'b/c']
+        self.build_tree(files, transport=self.tree.bzrdir.root_transport)
+        self.tree.add(files, ['a-id', 'b-id', 'c-id'])
+        self.tree.commit('initial tree')
+
+    def test_unknown(self):
+        self.build_tree(['tree/unknown'])
+        # Unknowns are not reported by changes_from
+        d = self.tree.changes_from(self.tree.basis_tree())
+        self.assertEqual([], d.added)
+        self.assertEqual([], d.removed)
+        self.assertEqual([], d.renamed)
+        self.assertEqual([], d.modified)
+
+    def test_unknown_specific_file(self):
+        self.build_tree(['tree/unknown'])
+        empty_tree = self.tree.branch.repository.revision_tree(
+                        revision.NULL_REVISION)
+
+        # If a specific_files list is present, even if none of the
+        # files are versioned, only paths that are present in the list
+        # should be compared
+        d = self.tree.changes_from(empty_tree, specific_files=['unknown'])
+        self.assertEqual([], d.added)
+        self.assertEqual([], d.removed)
+        self.assertEqual([], d.renamed)
+        self.assertEqual([], d.modified)