Unit Test Ruby

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  4. Add an assertion to test_basic thats certainly going to fail
require 'test/unit'
class String
  def titleize
    self.gsub(/\s(\w)/) { |letter| letter.upcase }.gsub(/^\w/) do |letter|
      letter.upcase
    end
  end
end
def test_words
    assert_equal("Let's make a test fail!", "foo".titleize)
end