diff -r 000000000000 -r 6474c204b198 testing/mozbase/mozdevice/tests/sut_unpackfile.py
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/testing/mozbase/mozdevice/tests/sut_unpackfile.py	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,24 @@
+#!/usr/bin/env python
+
+import mozdevice
+import mozlog
+import unittest
+from sut import MockAgent
+
+
+class TestUnpack(unittest.TestCase):
+
+    def test_unpackFile(self):
+
+        commands = [("isdir /mnt/sdcard/tests", "TRUE"),
+                    ("unzp /data/test/sample.zip /data/test/",
+                     "Checksum:          653400271\n"
+                     "1 of 1 successfully extracted\n")]
+        m = MockAgent(self, commands=commands)
+        d = mozdevice.DroidSUT("127.0.0.1", port=m.port, logLevel=mozlog.DEBUG)
+        # No error being thrown imples all is well
+        self.assertEqual(None, d.unpackFile("/data/test/sample.zip",
+                                            "/data/test/"))
+
+if __name__ == '__main__':
+    unittest.main()