In Elixir's ExUnit, is it possible to just run one test?

You can now do mix test path/to/test.exs:13, where 13 is the line of the test.

Add a tag to a test (e.g. wip) and run with the mix --only flag.

@tag :wip
test "only run this test" do
  assert true
end

Run as: mix test --only wip

This will only run tests with the defined tag, skipping all others.

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