Subset small test dataset

[kelly-sovacool]

Subset to keep all reads that aligned to just one chromosome. Better than random sampling so read depth will still be high.

In progress on branch tests_iss-27

[kelly-sovacool]

Selected raw reads that mapped to a small region of chromosome 22. Now testing on biowulf.

https://github.com/CCBR/XAVIER/tree/9fcd76bb9474ee76c919c34bf8a5a99925bae864/tests

[kelly-sovacool]

Regions for test dataset need to have enough coverage to make it through somalier analysis: brentp/somalier#50

Solution: if fewer than e.g. 20 chromosomes, just touch the somalier output file instead of running it.

[kelly-sovacool]

Currently this test dataset works with paired/cnv off, but fails otherwise. Will need to further refine it to figure out why.

[kelly-sovacool]

the new subsampled dataset in tests/data/ will fail with --cnv and on somalier, but there's now a larger 25% subset available on biowulf that works for these steps: /data/CCBR_Pipeliner/testdata/XAVIER/human_subset. This should be good enough for our purposes.