Re #6252 Add system test

Code/Mantid/Testing/SystemTests/tests/analysis/CalMuonDeadTimeTest.py

+#pylint: disable=no-init
+import stresstesting
+from mantid.simpleapi import *
+
+class CalMuonDeadTimeTest(stresstesting.MantidStressTest):
+    '''Tests the StepScan workflow algorithm'''
+
+    def runTest(self):
+        Load(Filename='EMU30604.nxs',OutputWorkspace='EMU30604')
+        CalMuonDeadTime(InputWorkspace='EMU30604',
+                        DeadTimeTable='deadTable',
+                        FirstGoodData=0.5,
+                        LastGoodData=10,
+                        DataFitted='fitTable')
+        GroupWorkspaces(InputWorkspaces='deadTable,fitTable',
+                        OutputWorkspace='EMUCalMuonDeadTime')
+
+    def validate(self):
+        return 'EMUCalMuonDeadTime','EMUCalMuonDeadTime.nxs'
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