test/ext/capture_output.rb


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module CaptureOutput
  def before_setup
    super
    $stderr = @stderr = StringIO.new
    $stdout = @stdout = StringIO.new
  end
  def after_teardown
    super
    $stderr = STDERR
    $stdout = STDOUT
  end
  def error_output
    @stderr.string
  end
  def standard_output
    @stdout.string
  end
end
class MiniTest::Test
  include CaptureOutput
end