add basic tests for stash.

dulwich/tests/__init__.py

@@ -124,6 +124,7 @@ def self_test_suite():
         'refs',
         'repository',
         'server',
+        'stash',
         'utils',
         'walk',
         'web',

dulwich/tests/test_stash.py

@@ -0,0 +1,22 @@
+# test_stash.py -- tests for stash
+# Copyright (C) 2018 Jelmer Vernooij <jelmer@jelmer.uk>
+#
+# Dulwich is dual-licensed under the Apache License, Version 2.0 and the GNU
+# General Public License as public by the Free Software Foundation; version 2.0
+# or (at your option) any later version. You can redistribute it and/or
+# modify it under the terms of either of these two licenses.
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+# You should have received a copy of the licenses; if not, see
+# <http://www.gnu.org/licenses/> for a copy of the GNU General Public License
+# and <http://www.apache.org/licenses/LICENSE-2.0> for a copy of the Apache
+# License, Version 2.0.
+#
+
+"""Tests for stashes."""
+