[Insight-developers] Writing a test for streaming

[Bradley Lowekamp]

Greetings,

	I am starting to write a test to determine if a pipeline is  
streaming. The StreamingImageFilter uses the ShrinkImageFilter for its  
test, and the shrink filter does not stream, yet this test is passing.  
So I am hoping to add to the tests of these two classes to check the  
execution of the pipeline.
	Unfortunately I  don't see any other tests that look at the pipeline  
execution this closely. I very likely could have missed something  
though. So I wrote a little monitoring image filter class which  
records regions used in EnlargeOutputRequestedRegion,   
GenerateInputRequestedRegion,  and the actual regions copied from the  
input region in GenerateData. By comparing the number and sizes of  
these regions we can determine if the pipeline is being executed as  
advertised.
	I am just finally getting going with the adopt a bug program and want  
to make sure that I am on the right track with things.

Thanks,
Brad
	




========================================================
Bradley Lowekamp
Lockheed Martin Contractor for
Office of High Performance Computing and Communications
National Library of Medicine
blowekamp at mail.nih.gov


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