Package harness provides a simple way to test goldsmith plugins and filters. It executes a goldsmith chain on provided "source" data and compares the generated "target" resuts with the known to be good "reference" data.
Validate enables validation of a single, unnamed case (test data is stored in "testdata").
ValidateCase enables enables of a single, named case (test data is stored in "testdata/caseName").
Stager callback function is used to set up a goldsmith chain.