ruby_assumption2.rb

require 'test/unit'

class SanityTest < Test::Unit::TestCase
  def test_my_sanity
    complex_array = [{:blah => "hello"},{:foo => "blah"}]
    copied_array = complex_array.clone
    copied_array[0][:blah] = nil
    
    assert_not_equal copied_array, complex_array
  end
end

#  1) Failure:
#  test_my_sanity(SanityTest):
#  <[{:blah=>nil}, {:foo=>"blah"}]> expected to be != to
#  <[{:blah=>nil}, {:foo=>"blah"}]>