Refs #9342 Add unit test for IndirectTransmission

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

@@ -16,6 +16,7 @@ set ( TEST_PY_FILES
   FilterLogByTimeTest.py
   FindReflectometryLinesTest.py
   GetEiT0atSNSTest.py
+  IndirectTransmissionTest.py
   LoadFullprofFileTest.py
   LoadLiveDataTest.py
   LoadLogPropertyTableTest.py

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

@@ -0,0 +1,27 @@
+import unittest
+import numpy as np
+import mantid.simpleapi
+from mantid.simpleapi import IndirectTransmission
+
+class IndirectTransmissionTest(unittest.TestCase):
+
+    def test_indirect_transmission(self):
+        instrument = "IRIS"
+        analyser = "graphite"
+        reflection = "002"
+
+        #using water sample
+        formula = "H2-O"
+        density = 0.1
+        thickness = 0.1
+
+        ws = IndirectTransmission(Instrument=instrument, Analyser=analyser, Reflection=reflection,
+                                  ChemicalFormula=formula, NumberDensity=density, Thickness=thickness)
+
+        #expected values from table
+        ref_result = [6.658, 0.821223, 2.58187, 53.5069, 56.0888, 0.1, 0.1, 0.566035, 0.429298]
+        values = ws.column(1)
+        np.testing.assert_allclose(values, ref_result, rtol=1e-5)
+
+if __name__=="__main__":
+    unittest.main()