test_nanshe_learner: Added a test for main from nanshe_learner. This partially addresses #122.
test_nanshe_learner: Added a test for main from nanshe_learner. This partially addresses #122.

nanshe-org/nanshe,jakirkham/nanshe,nanshe-org/nanshe,DudLab/nanshe,jakirkham/nanshe,DudLab/nanshe