refs #7472. Adding tests for getGroup.

Lots of options for using getGroup. Cover the specific 'whattoget' arguments.

Code/Mantid/scripts/test/ReflectometryQuickAuxiliaryTest.py

 import unittest
+import numpy
 from MantidFramework import mtd
 mtd.initialise()
 from mantid.simpleapi import *
@@ -17,12 +18,15 @@ class ReflectometryQuickAuxiliaryTest(unittest.TestCase):
         self.assertEqual(1, len(cleaned_object_names))
         self.assertEqual(True, ('tokeep' in cleaned_object_names))
         
+        DeleteWorkspace(tokeep)
+        
     def test_coAdd_ws_in_ADS(self):
         inWS = CreateSingleValuedWorkspace(DataValue=1, ErrorValue=1)
         quick.coAdd('inWS', 'ProvidedName')
         outWS = mtd['_WProvidedName']
         result = CheckWorkspacesMatch(Workspace1=inWS, Workspace2=outWS)
         self.assertEquals("Success!", result)
+        DeleteWorkspace(outWS)
         
     def test_coAdd_run_list(self):
         originalInstrument = config.getInstrument()
@@ -49,7 +53,74 @@ class ReflectometryQuickAuxiliaryTest(unittest.TestCase):
             self.assertEquals("Success!", result)
         finally:
             config['default.instrument'] = originalInstrument.name()
+            DeleteWorkspace(a[0])
+            DeleteWorkspace(b[0])
+            DeleteWorkspace(c)
+            DeleteWorkspace(outWS)
+        
+    def test_groupGet_instrument(self):
+        wsName = "TestWorkspace"
+        LoadISISNexus(Filename='POLREF00004699', OutputWorkspace=wsName)
+        
+        expectedInstrument = "POLREF"
+        
+        # Test with group workspace as input
+        instrument = quick.groupGet(wsName, 'inst')
+        self.assertEquals(expectedInstrument, instrument.getName(), "Did not fetch the instrument from ws group")
+        
+        # Test with single workspace as input
+        instrument = quick.groupGet(mtd[wsName][0].name(), 'inst')
+        self.assertEquals(expectedInstrument, instrument.getName(), "Did not fetch the instrument from ws")
+        
+        DeleteWorkspace(mtd[wsName])
+    
+    def test_groupGet_histogram_count(self):
+        wsName = "TestWorkspace"
+        LoadISISNexus(Filename='POLREF00004699', OutputWorkspace=wsName)
+        expectedNHistograms = mtd[wsName][0].getNumberHistograms()
+        
+        # Test with group workspace as input
+        nHistograms = quick.groupGet(wsName, 'wksp')
+        self.assertEquals(expectedNHistograms, nHistograms, "Did not fetch the n histograms from ws group")
+        
+        # Test with single workspace as input
+        nHistograms = quick.groupGet(mtd[wsName][0].name(), 'wksp')
+        self.assertEquals(expectedNHistograms, nHistograms, "Did not fetch the n histograms from ws")
+        
+        DeleteWorkspace(mtd[wsName])
+    
+    def test_groupGet_log_single_value(self):
+        wsName = "TestWorkspace"
+        LoadISISNexus(Filename='POLREF00004699', OutputWorkspace=wsName)
+        
+        expectedNPeriods = 2
+        
+        # Test with group workspace as input
+        nPeriods = quick.groupGet(wsName, 'samp', 'nperiods')
+        self.assertEquals(expectedNPeriods, nPeriods, "Did not fetch the number of periods from ws group")
+        
+        # Test with single workspace as input
+        nPeriods = quick.groupGet(mtd[wsName][0].name(), 'samp', 'nperiods')
+        self.assertEquals(expectedNPeriods, nPeriods, "Did not fetch the number of periods from ws")
+        
+        DeleteWorkspace(mtd[wsName])
+        
+    def test_groupGet_multi_value_log(self):
+        wsName = "TestWorkspace"
+        LoadISISNexus(Filename='POLREF00004699', OutputWorkspace=wsName)
+        
+        # Expected start theta, taken from the last value of the time series log.
+        expectedStartTheta = 0.4903 
+        
+        # Test with group workspace as input
+        stheta = quick.groupGet(wsName, 'samp', 'stheta')
+        self.assertEquals(expectedStartTheta, round(float(stheta), 4))
+        
+        # Test with single workspace as input
+        stheta = quick.groupGet(mtd[wsName][0].name(), 'samp', 'stheta')
+        self.assertEquals(expectedStartTheta, round(float(stheta), 4))
         
+        DeleteWorkspace(mtd[wsName])
         
 
 if __name__ == '__main__':