test.exs

defmodule TasteTest do
  use ExUnit.Case

  setup context do
    {:ok, Map.put(context, :test, String.to_atom("#{context[:test]} (#{context[:group]})"))}
  end

  test "the truth" do
    assert 1 + 1 == 2
  end

  @tag group: :build
  test "func 1" do
  end

  @tag group: :build
  test "func 2" do
  end

  @tag group: :build
  test "func 3" do
    assert true
  end
end