Comment 2 for bug 974622

At least in our case, the order is available during execution by looking at files in the temp directory. These are the files passed to bin/test --load-list. We can duplicate the test run outside of the parallel machinery by getting the appropriate file and using --load-list. This has provided a valuable analysis tool, and it is the use case I want to support.

Your approach certainly sounds more general, and could be the basis of nice general purpose support. As you'd expect, a full solution for our own use case needs to provide easy access to the filtered list of tests for a particular worker in a format that we can then use bin/test --load-list on.