Grid_unitTest(integer, intent(in):: fileUnit, logical, intent(inout)::perfect )
Grid unit test has two implementations. There is a general test which exercises the data access interface of the Grid unit, for example the get/putData functions, and can be used with all three Grid implementations. There is also a test specific to the Uniform Grid which tests internal working of the UG such as parallel data exchanges, domain setup etc.
fileUnit - open f90 write unit perfect - returns a true if the test passed, false otherwise