For my rework of PDF::Writer, I'm developing a set of tests that each PDF::Writer subclass has to pass in order to be considered to "work". Using Test::PDF, I can verify that each subclass correctly renders the set of commands against a control PDF.

Here's the problem - I don't want to have copies of identical tests for each subclass. Instead, I want to run the same subset of tests against each renderer. But, I want to have a comprehensive output. So, I want to have something like: 

Overall:
t/foo.t ... ok
t/bar.t ... ok

Subclass1:
t/001.t ... ok
t/002.t ... failed 5/22
  failure message here

Subclass2:
t/001.t ... failed 1/2
  failure message here
t/002.t ... failed 3/22
  failure message here

[download]
Then, something useful in the summary. (I haven't even thought that far.)

First off - has anyone done this? Second, how easy would this to do with Module::Build? (I'm not even going to think about doing this with EU::MM.) Am I really looking for an extension to TAP and a subclass of Test::Harness::Straps?

My criteria for good software:
  1. Does it work?
  2. Can someone else come in, make a change, and be reasonably certain no bugs were introduced?

In reply to Running a set of tests twice by dragonchild

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