Module: Kernel

Defined in:
lib/the_array_comparator/testing_helper.rb

Instance Method Summary collapse

Instance Method Details

#capture(stream) ⇒ Object

Captures the given stream and returns it:

stream = capture(:stdout) { puts 'Cool' }
stream # => "Cool\n"



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# File 'lib/the_array_comparator/testing_helper.rb', line 43

def capture(stream)
  begin
    stream = stream.to_s
    eval "$#{stream} = StringIO.new"
    yield
    result = eval("$#{stream}").string
  ensure
    eval("$#{stream} = #{stream.upcase}")
  end

  result
end