diff -r 000000000000 -r 6474c204b198 testing/mozbase/mozprocess/tests/test_mozprocess_misc.py
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/testing/mozbase/mozprocess/tests/test_mozprocess_misc.py	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,35 @@
+#!/usr/bin/env python
+
+import os
+import time
+import unittest
+import proctest
+from mozprocess import processhandler
+
+here = os.path.dirname(os.path.abspath(__file__))
+
+class ProcTestMisc(proctest.ProcTest):
+    """ Class to test misc operations """
+
+    def test_process_output_twice(self):
+        """
+        Process is started, then processOutput is called a second time explicitly
+        """
+        p = processhandler.ProcessHandler([self.python, self.proclaunch,
+                                          "process_waittimeout_10s_python.ini"],
+                                          cwd=here)
+
+        p.run()
+        p.processOutput(timeout=5)
+        p.wait()
+
+        detected, output = proctest.check_for_process(self.proclaunch)
+        self.determine_status(detected,
+                              output,
+                              p.proc.returncode,
+                              p.didTimeout,
+                              False,
+                              ())
+
+if __name__ == '__main__':
+    unittest.main()