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BDD testing framework for Elixir inspired by RSpec.
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lib/espec/assertions/pid/be_alive.ex
defmodule ESpec.Assertions.PID.BeAlive do
@moduledoc """
Defines 'be_alive' assertion.
it do: expect(self()).to be_alive
"""
use ESpec.Assertions.Interface
defp match(subject, _val) do
result = Process.alive?(subject)
{result, result}
end
defp success_message(subject, _val, _result, positive) do
to = if positive, do: "is", else: "is not"
"`#{inspect(subject)}` #{to} alive."
end
defp error_message(subject, _val, _result, positive) do
to = if positive, do: "to", else: "not to"
but = if positive, do: "it isn't", else: "it is"
"Expected `#{inspect(subject)}` #{to} be alive but #{but}."
end
end