1 files changed, 61 insertions, 0 deletions
diff --git a/nova/tests/unit/virt/hyperv/test_ioutils.py b/nova/tests/unit/virt/hyperv/test_ioutils.py
new file mode 100644
index 0000000000..2f12450a46
--- /dev/null
+++ b/nova/tests/unit/virt/hyperv/test_ioutils.py
@@ -0,0 +1,61 @@
+# Copyright 2014 Cloudbase Solutions Srl
+# All Rights Reserved.
+#
+#    Licensed under the Apache License, Version 2.0 (the "License"); you may
+#    not use this file except in compliance with the License. You may obtain
+#    a copy of the License at
+#
+#         http://www.apache.org/licenses/LICENSE-2.0
+#
+#    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.import mock
+
+import mock
+
+import os
+
+from nova import test
+from nova.virt.hyperv import ioutils
+
+
+class IOThreadTestCase(test.NoDBTestCase):
+    _FAKE_SRC = r'fake_source_file'
+    _FAKE_DEST = r'fake_dest_file'
+    _FAKE_MAX_BYTES = 1
+
+    def setUp(self):
+        self._iothread = ioutils.IOThread(
+            self._FAKE_SRC, self._FAKE_DEST, self._FAKE_MAX_BYTES)
+        super(IOThreadTestCase, self).setUp()
+
+    @mock.patch('__builtin__.open')
+    @mock.patch('os.rename')
+    @mock.patch('os.path.exists')
+    @mock.patch('os.remove')
+    def test_copy(self, fake_remove, fake_exists, fake_rename, fake_open):
+        fake_data = 'a'
+        fake_src = mock.Mock()
+        fake_dest = mock.Mock()
+
+        fake_src.read.return_value = fake_data
+        fake_dest.tell.return_value = 0
+        fake_exists.return_value = True
+
+        mock_context_manager = mock.MagicMock()
+        fake_open.return_value = mock_context_manager
+        mock_context_manager.__enter__.side_effect = [fake_src, fake_dest]
+        self._iothread._stopped.isSet = mock.Mock(side_effect=[False, True])
+
+        self._iothread._copy(self._FAKE_SRC, self._FAKE_DEST)
+
+        fake_dest.seek.assert_called_once_with(0, os.SEEK_END)
+        fake_dest.write.assert_called_once_with(fake_data)
+        fake_dest.close.assert_called_once_with()
+        fake_rename.assert_called_once_with(
+            self._iothread._dest, self._iothread._dest_archive)
+        fake_remove.assert_called_once_with(
+            self._iothread._dest_archive)
+        self.assertEqual(3, fake_open.call_count)