This tool runs diff comparisons of command line test output files.
This tool supports a common TSV Utilities testing paradigm: Running command line tests on the built executables to produce a set of outputs from an existing set of tests. Test results are written to a files in a directory and compared to a "gold" set of outputs known to be correct.
This tool runs a version of directory diff support multiple correct output versions. This is to handle the case where different compiler/library versions have different valid outputs. The most common case is changes to error message text.
Copyright (c) 2018-2021, eBay Inc. Initially written by Jon Degenhardt