Cobertura error when protocols and implementations in codebase

[gorghoa]

A protocol (defprotocol) or implementation (defimpl) definition covered during the tests triggers an error when using the cobertura formatter mix coveralls.cobertura.

** (MatchError) no match of right hand side value: nil
    (excoveralls 0.16.0) lib/excoveralls/cobertura.ex:168: ExCoveralls.Cobertura.module_name/1

    (excoveralls 0.16.0) lib/excoveralls/cobertura.ex:99: anonymous fn/3 in ExCoveralls.Cobertura.generate_packages/2
    (elixir 1.14.2) lib/enum.ex:2468: Enum."-reduce/3-lists^foldl/2-0-"/3
    (excoveralls 0.16.0) lib/excoveralls/cobertura.ex:97: ExCoveralls.Cobertura.generate_packages/2
    (excoveralls 0.16.0) lib/excoveralls/cobertura.ex:74: ExCoveralls.Cobertura.generate_xml/2
    (excoveralls 0.16.0) lib/excoveralls/cobertura.ex:16: ExCoveralls.Cobertura.execute/2
    (elixir 1.14.2) lib/enum.ex:975: Enum."-each/2-lists^foreach/1-0-"/2
    (excoveralls 0.16.0) lib/excoveralls.ex:65: ExCoveralls.execute/3
    (mix 1.14.2) lib/mix/tasks/test.ex:549: Mix.Tasks.Test.do_run/3
    (mix 1.14.2) lib/mix/task.ex:421: anonymous fn/3 in Mix.Task.run_task/4
    (excoveralls 0.16.0) lib/mix/tasks.ex:54: Mix.Tasks.Coveralls.do_run/2
    (mix 1.14.2) lib/mix/task.ex:421: anonymous fn/3 in Mix.Task.run_task/4
    (mix 1.14.2) lib/mix/cli.ex:84: Mix.CLI.run_task/2
    (elixir 1.14.2) lib/code.ex:1260: Code.require_file/2

Made a PR here #306

Thanks!

[parroty]

Thank you for the report and fix. I have published the change. I'll be closing the issue, but if there's any missing piece, please reopen it.