View Source Credo.Check.Warning.WrongTestFileExtension (Credo v1.6.4)
This check has a base priority of high and works with any version of Elixir.
Explanation
Invoking mix test from the command line will run the tests in each file
matching the pattern *_test.exs found in the test directory of your project.
(from the ex_unit docs)
This check ensures that test files are not ending with .ex (which would cause them to be skipped).
Check-Specific Parameters
There are no specific parameters for this check.
General Parameters
Like with all checks, general params can be applied.
Parameters can be configured via the .credo.exs config file.