Added unit test Re #12541

Code/Mantid/Framework/PythonInterface/test/python/plugins/algorithms/CMakeLists.txt

@@ -47,6 +47,7 @@ set ( TEST_PY_FILES
   MolDynTest.py
   MSDFitTest.py
   PDDetermineCharacterizationsTest.py
+  ResNormTest.py
   RetrieveRunInfoTest.py
   SANSWideAngleCorrectionTest.py
   SavePlot1DTest.py

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

@@ -0,0 +1,72 @@
+import unittest
+from mantid.simpleapi import *
+from mantid.api import MatrixWorkspace, WorkspaceGroup
+
+
+class ResNormTest(unittest.TestCase):
+
+    _res_ws = None
+    _van_ws = None
+
+
+    def setUp(self):
+        self._res_ws = Load(Filename='irs26173_graphite002_res.nxs',
+                            OutputWorkspace='__ResNormTest_Resolution')
+        self._van_ws = Load(Filename='irs26173_graphite002_red.nxs',
+                            OutputWorkspace='__ResNormTest_Vanadium')
+
+
+    def _validate_result(self, result):
+        """
+        Validates that the result workspace is of the correct type, units and shape.
+
+        @param result Result workspace form ResNorm
+        """
+
+        self.assertTrue(isinstance(result, WorkspaceGroup))
+        self.assertEquals(result.getNumberOfEntries(), 2)
+
+        expected_names = [result.name() + '_' + n for n in ['Intensity', 'Stretch']]
+        for name in expected_names:
+            self.assertTrue(name in result.getNames())
+
+        for idx in range(result.getNumberOfEntries()):
+            sub_ws = result.getItem(idx)
+            self.assertTrue(isinstance(sub_ws, MatrixWorkspace))
+            self.assertEqual(sub_ws.blocksize(), self._van_ws.getNumberHistograms())
+            self.assertEquals(sub_ws.getAxis(0).getUnit().unitID(), 'MomentumTransfer')
+
+
+    def test_basic(self):
+        """
+        Tests a basic run of ResNorm.
+        """
+        result = ResNorm(ResolutionWorkspace=self._res_ws,
+                         VanadiumWorkspace=self._van_ws)
+        self._validate_result(result)
+
+
+    def test_with_limits(self):
+        """
+        Tests a basic run of ResNorm with energy limits.
+        """
+        result = ResNorm(ResolutionWorkspace=self._res_ws,
+                         VanadiumWorkspace=self._van_ws,
+                         EnergyMin=-0.1,
+                         EnergyMax=0.1)
+        self._validate_result(result)
+
+
+    def test_with_bad_limits(self):
+        """
+        Tests validation for energy range.
+        """
+        self.assertRaises(RuntimeError, ResNorm,
+                          ResolutionWorkspace=self._res_ws,
+                          VanadiumWorkspace=self._van_ws,
+                          EnergyMin=0.1,
+                          EnergyMax=-0.1)
+
+
+if __name__=="__main__":
+    unittest.main()

Code/Mantid/Testing/Data/UnitTest/irs26173_graphite002_red.nxs.md5

@@ -0,0 +1 @@
+f52ac64ec23fb50b6d4649592aee4fdb