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power_assert

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Power Assert in Elixir. Shows evaluation results each expression.

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power_assert lib power_assert.ex
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lib/power_assert.ex 

defmodule PowerAssert do

  defmacro __using__(opts) do

    use_ex_unit = Keyword.get(opts, :use_ex_unit, false)

    if !use_ex_unit do

      quote do

        require ExUnit.Case

        use PowerAssert.ExUnitCase, unquote(opts)

        import PowerAssert.Assertion

      end

    else

      quote do

        require PowerAssert.Assertion

        defmacro power_assert(ast, msg \\ nil) do

          quote do

            PowerAssert.Assertion.assert(unquote(ast), unquote(msg))

          end

        end

      end

    end

  end

end