[#5810] standardize slashes in tree_paths
diff --git a/ForgeSVN/forgesvn/model/svn.py b/ForgeSVN/forgesvn/model/svn.py
index 64a36ca..1d6a815 100644
--- a/ForgeSVN/forgesvn/model/svn.py
+++ b/ForgeSVN/forgesvn/model/svn.py
@@ -396,7 +396,7 @@
 
     def compute_tree_new(self, commit, tree_path='/'):
         from allura.model import repo as RM
-        tree_path = tree_path[:-1]
+        tree_path = '/' + tree_path.strip('/')  # always leading slash, never trailing
         tree_id = self._tree_oid(commit._id, tree_path)
         tree = RM.Tree.query.get(_id=tree_id)
         if tree:
@@ -587,7 +587,7 @@
         single common parent path (i.e., you are only asking for
         a subset of the nodes of a single tree, one level deep).
         '''
-        tree_path = os.path.commonprefix(paths).strip('/')
+        tree_path = '/' + os.path.commonprefix(paths).strip('/')  # always leading slash, never trailing
         rev = self._revision(commit._id)
         try:
             infos = self._svn.info2(
diff --git a/ForgeSVN/forgesvn/tests/model/test_svnimplementation.py b/ForgeSVN/forgesvn/tests/model/test_svnimplementation.py
new file mode 100644
index 0000000..3a5ae5d
--- /dev/null
+++ b/ForgeSVN/forgesvn/tests/model/test_svnimplementation.py
@@ -0,0 +1,55 @@
+from mock import Mock, MagicMock, patch
+import pysvn
+from nose.tools import assert_equal
+
+from allura.model.repo import Commit
+from forgesvn.model.svn import Repository, SVNImplementation
+
+
+class TestSVNImplementation(object):
+
+    def test_compute_tree_new(self):
+        self._test_compute_tree_new('/trunk/foo/')
+        self._test_compute_tree_new('/trunk/foo')
+        self._test_compute_tree_new('trunk/foo/')
+        self._test_compute_tree_new('trunk/foo')
+
+    @patch('allura.model.repo.LastCommitDoc.m.update_partial')
+    @patch('allura.model.repo.TreesDoc.m.update_partial')
+    @patch('allura.model.repo.Tree.upsert')
+    @patch('allura.model.repo.Tree.query.get')
+    def _test_compute_tree_new(self, path, tree_get, tree_upsert, treesdoc_partial, lcd_partial):
+        repo = Mock(fs_path='/tmp/')
+        repo.name = 'code'
+        impl = SVNImplementation(repo)
+        impl._svn.info2 = Mock()
+        impl._svn.info2.return_value = [('foo', Mock())]
+        tree_get.return_value = None  # no existing tree
+        commit = Commit()
+        commit._id = '5057636b9c1040636b81e4b1:6'
+        tree_upsert.return_value = (Mock(), True)
+
+        tree_id = impl.compute_tree_new(commit, path)
+
+        assert_equal(impl._svn.info2.call_args[0][0], 'file:///tmp/code/trunk/foo')
+        treesdoc_partial.assert_called()
+        lcd_partial.assert_called()
+
+
+    def test_last_commit_ids(self):
+        self._test_last_commit_ids('/trunk/foo/')
+        self._test_last_commit_ids('/trunk/foo')
+        self._test_last_commit_ids('trunk/foo/')
+        self._test_last_commit_ids('trunk/foo')
+
+    def _test_last_commit_ids(self, path):
+        repo = Mock(fs_path='/tmp/')
+        repo.name = 'code'
+        impl = SVNImplementation(repo)
+        impl._svn.info2 = Mock()
+        impl._svn.info2.return_value = [('foo', Mock())]
+        commit = Commit()
+        commit._id = '5057636b9c1040636b81e4b1:6'
+        tree_id = impl.last_commit_ids(commit, [path])
+
+        assert_equal(impl._svn.info2.call_args[0][0], 'file:///tmp/code/trunk/foo')