Gudipudi_Manikanta_PA1.txt

Ruby intro part 1
  #sum
    should be defined
    returns correct sum
    works on the empty array
  #max_2_sum
    should be defined
    returns the correct sum
    works even if 2 largest values are the same
    returns zero if array is empty
    returns value of the element if just one element
  #sum_to_n?
    should be defined
    returns true when any two elements sum to the second argument
    returns false for any single element array
    returns false for an empty array

Ruby intro part 2
  #hello
    should be defined
    returns the correct string
  #starts_with_consonant?
    should be defined
    classifies true cases
    classifies false cases
    works on the empty string
    works on nonletters
  #binary_multiple_of_4?
    should be defined
    classifies valid binary numbers
    rejects invalid binary numbers

Ruby intro part 3
  BookInStock
    should be defined
    getters and setters
      should set ISBN
      should set price
      should be able to change ISBN
      should be able to change price
    constructor
      should reject invalid ISBN number
      should reject zero price
      should reject negative price
    #price_as_string
      should be defined
      should display 33.95 as $33.95
      should display 1.1 as $1.10
      should display 20 as $20.00

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