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martinos/local_io.rb

Created January 28, 2013 22:56
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For testing io stdin and stdout interaction.
Raw
local_io.rb
module SpecHelper
def local_io(in_str)
old_stdin, old_stdout = $stdin, $stdout
$stdin = StringIO.new(in_str)
$stdout = StringIO.new
yield
$stdout.string
ensure
$stdin, $stdout = old_stdin, old_stdout
end
end
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