Rewired modules showing up in Coverage reports

[kmckee]

When I run mix test --cover, I'm seeing rewired modules in the coverage report:

Generating cover results ...

Percentage | Module
-----------|--------------------------
    78.57% | Foo.Bar.Baz.R5115

Is this expected behavior? I'm thinking they should be excluded, but I'm hesitant to start adding generated modules to my coverage_exclusions.

[kmckee]

For anyone else that encounters this, you can add the following to your coverage_exclusions to ignore any coverage reports for rewired modules: ~r"\.R\d+$"