But What If the Progression is Not Simple?

• Observed progression of per-commit results:

        P U U U U U U U U U F

• Result observed at intermediate commit:

        P U U U U X U U U U F

• ... where X is a different kind of failure from F

  • Example:

    • At X, test file FAILs unit tests

    • At F, test file segfaults, doesn't complete