GSoC/GCI Archive
Google Code-in 2010 Parrot Foundation and The Perl Foundation

Increase test coverage of Sub PMC by 10%

completed by: Fernando Brito

mentors: cotto

Sub Description

Increase the code coverage of the Sub PMC by at least 10%

Steps To Complete This Sub

Currently, the Sub PMC is at 82% code coverage, which is a bit low for such an important PMC. This task requires the student to write tests to increase the code coverage of this important PMC. The tests should be added to t/pmc/sub.t
  1. Create a fork of parrot.git on
  2. Perform all the necessary code and/or documentation changes
  3. Build parrot and run it's test suite (make fulltest) to verify that things still work
  4. You can also submit a smoke report with "make smoke", but that is optional.
  5. Create a Github pull request (button on the upper right of your fork) to have your changes incorporated into the master repository


  1. This will ensure there are no hidden bugs in our Subs, which are a very important subsystem of Parrot.


  1. Knowledge of writing tests and PIR
  2. Abillity to debug.

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