Update: after lots of good work from everyone, we now only have two files without unit tests: hirm.hh and util_io.hh.
In addition, there are a number of files that are under tested: distributions/bigram.hh and all of the emissions classes, for example. zero_mean_normal_test.cc is missing a test that compares against a numerical integral (like normal_test.cc has).
Update: after lots of good work from everyone, we now only have two files without unit tests: hirm.hh and util_io.hh.
In addition, there are a number of files that are under tested: distributions/bigram.hh and all of the emissions classes, for example. zero_mean_normal_test.cc is missing a test that compares against a numerical integral (like normal_test.cc has).