Merge pull request #749 from mantidproject/11758_indirectillreduction_x_axis_in_deltae

The test works as expected

Code/Mantid/Framework/PythonInterface/plugins/algorithms/WorkflowAlgorithms/IndirectILLReduction.py

@@ -334,11 +334,12 @@ class IndirectILLReduction(DataProcessorAlgorithm):
         ConvertAxisByFormula(InputWorkspace=grouped_ws,
                              OutputWorkspace=red_ws,
                              Axis='X',
-                             Formula=formula,
-                             AxisTitle='Energy transfer',
-                             AxisUnits='meV')
+                             Formula=formula)
 
-        xnew = mtd[red_ws].readX(0)  # energy array
+        red_ws_p = mtd[red_ws]
+        red_ws_p.getAxis(0).setUnit('DeltaE')
+
+        xnew = red_ws_p.readX(0)  # energy array
         logger.information('Energy range : %f to %f' % (xnew[0], xnew[-1]))
 
         DeleteWorkspace(grouped_ws)

Code/Mantid/Framework/PythonInterface/test/python/plugins/algorithms/IndirectILLReductionTest.py

@@ -34,7 +34,7 @@ class IndirectILLReductionTest(unittest.TestCase):
         red_workspace = mtd[self.kwargs['ReducedWorkspace']]
 
         self.assertTrue(isinstance(red_workspace, mantid.api.MatrixWorkspace), "Should be a matrix workspace")
-        self.assertEqual("Energy transfer", red_workspace.getAxis(0).getUnit().caption())
+        self.assertEqual(red_workspace.getAxis(0).getUnit().unitID(), "DeltaE")
 
     def test_mirror_mode(self):
         self.kwargs['MirrorMode'] = True
@@ -48,16 +48,13 @@ class IndirectILLReductionTest(unittest.TestCase):
         right_red_workspace = mtd[self.kwargs['RightWorkspace']]
 
         self.assertTrue(isinstance(red_workspace, mantid.api.MatrixWorkspace), "Should be a matrix workspace")
-        self.assertEqual("Energy transfer", red_workspace.getAxis(0).getUnit().caption())
-        self.assertEqual("meV", red_workspace.getAxis(0).getUnit().symbol().ascii())
+        self.assertEqual(red_workspace.getAxis(0).getUnit().unitID(), "DeltaE")
 
         self.assertTrue(isinstance(left_red_workspace, mantid.api.MatrixWorkspace), "Should be a matrix workspace")
-        self.assertEqual("Energy transfer", left_red_workspace.getAxis(0).getUnit().caption())
-        self.assertEqual("meV", left_red_workspace.getAxis(0).getUnit().symbol().ascii())
+        self.assertEqual(left_red_workspace.getAxis(0).getUnit().unitID(), "DeltaE")
 
         self.assertTrue(isinstance(right_red_workspace, mantid.api.MatrixWorkspace), "Should be a matrix workspace")
-        self.assertEqual("Energy transfer", right_red_workspace.getAxis(0).getUnit().caption())
-        self.assertEqual("meV", right_red_workspace.getAxis(0).getUnit().symbol().ascii())
+        self.assertEqual(right_red_workspace.getAxis(0).getUnit().unitID(), "DeltaE")
 
     def test_mirror_mode_default_names(self):
         self.kwargs['MirrorMode'] = True