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Update README with instructions on silencing OTP warnings #285

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merged 1 commit into from Jul 14, 2022
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Update README with instructions on silencing OTP warnings #285

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Expand Up @@ -468,6 +468,18 @@ defmodule MyModule do
end
```

### Silence OTP Cover Warnings
To remove OTP warnings about modules or specific logging, you can copy the `cover.erl` file under `src/` of your Elixir project and modify it to remove the warnings, as a tentative solution.

- Remove the 2 lines below to remove the "WARNING: Module already imported from ..." log
https://github.com/erlang/otp/blob/131398b54cca5f1ae95ed268274936d2efde8c39/lib/tools/src/cover.erl#L1553-L1554

- If you do not want the imported info cluttering your test output, replace the function in https://github.com/erlang/otp/blob/131398b54cca5f1ae95ed268274936d2efde8c39/lib/tools/src/cover.erl#L1520-L1525 with
```
imported_info(_Text,_Module,_Imported) ->
ok.
```

### Notes
- If mock library is used, it will show some warnings during execution.
- https://github.com/eproxus/meck/pull/17
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