[ITK] Tests with multi-file input data (Bruker2DSEQ)

[Wood, Tobias]

Hello,

I have been slowly working on my updated Bruker2DSEQ file reader. It’s not quite ready for formal review, but it is available here: https://github.com/spinicist/ITK (On the Bruker branch)

I have reached a problem writing a suitable test, because the Bruker data format consists of multiple files. I previously discussed this issue with Jon Haitz, but despite his help I am stuck.

I have added a new example Bruker file in Testing/Data/Input/Bruker2DSEQ. There was already a Bruker dataset in Testing/Data/Input/DCB120604.t61, but this is from (I think) ParaVision 3. Bruker made a *lot* of changes when they released ParaVision 6, one of which was the introduction of a new header file called “visu_pars”. The actual image data is still in the “2dseq” file.

My problem is that the itk Test Driver only transfers the 2dseq file to build/ExternalData/Testing/Data/Input/Bruker2DSEQ/... , and not the “visu_pars” file, and hence trying to read the file fails.

So, questions:
1 - Is this the correct place to put the test data? Because of the Bruker directory structure, I assumed the recommended way of requesting an MD5 hash and putting the data in the module’s test directory won’t work?
2 - How do I indicate to the test driver that it needs to copy the whole directory structure, and not just the 2dseq file? Eventually, I would like the reader to read all the header files (there are several of them) because they contain useful meta-data that users might want to extract.

I was hoping to do a bit more polishing before putting this out for any kind of review, but I guess now is as a good a time as any. Let me know if you need more information. Note - I moved the module out of Nonunit/Review, I hope this was a good idea but I can always move it back if necessary.

Thanks,
Toby