UniqueArray Problem

gistfile1.rb

For this problem you will be creating a Ruby class which behaves exactly like an array but will store only numbers, will store them in the order they were added and when adding new elements will ignore any duplicates. In this way it functions like a Ruby hash object in that each key has to be unique.

Here's an example:

# Creating an array from another array. Notice that only the first occurrence of the number 2 is kept

UniqueArray.new([1,2,0,6,2,11]) 

=> [1,2,0,6,11]

# Creating an array by adding one element at a time

m = UniqueArray.new()

[1,2,0,6,2,11].each do |new_element|

  m.add(new_element)

end

puts m

=> [1,2,0,6,11]

Submit your ruby file containing the class you wrote. Also submit a test file which demonstrates how your class functions. You'll get bonus points if your test file uses the rSpec testing framework! ;)