Re #11349 Trying to identify some oddities observed on OSX and Ubunu

Code/Mantid/scripts/Inelastic/Direct/PropertyManager.py

@@ -538,8 +538,11 @@ def _check_file_properties(self):
             if not ok:
                 file_errors[prop_name]=file
 
-        if self.sum_runs :
+        if self.sum_runs:
+            missing=[]; found=[]
             ok,missing,found=self.find_files_to_sum()
+            #Presence of Cashe sum ws assumes that you sum files to workspace as they appear
+            # This mean, that we should not expect all files to be there at the begining
             if not ok and not self.cashe_sum_ws:
                 file_errors['missing_runs_toSum']=str(missing)
 

Code/Mantid/scripts/Inelastic/Direct/RunDescriptor.py

@@ -615,13 +615,15 @@ def find_run_files(self,run_list=None):
             for run in run_list:
                 if not run in existing:
                     raise RuntimeError('run {0} is not in the existing run list'.format(run))
-
+        not_found=[]
+        found = []
         inst = RunDescriptor._holder.short_instr_name
         not_found,found = self._run_list.find_run_files(inst,run_list)
         if len(not_found) == 0:
-            return (True,[],found)
+            Ok = True
         else:
-            return (False,not_found,found)
+            Ok = False
+        return (Ok,not_found,found)
 #--------------------------------------------------------------------------------------------------------------------
     def set_action_suffix(self,suffix=None):
         """Method to set part of the workspace name, which indicate some action performed over this workspace