method

capture

v3.0.9 - Show latest stable - Class: Rails::Generators::TestCase

capture(stream)

public

Captures the given stream and returns it:

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

# File railties/lib/rails/generators/test_case.rb, line 73
      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

capture

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