Poker hand ranking

Write a function in Ruby that accepts five arguments that represent five cards. Each card will be represented by two characters. The first character is the value of the card: 2-9, 0 (for 10), A, K, Q, and J. The second character is the suit: h, s, d, and c.

The function should return the Poker combination the hand contains. Return values include royal flush, straight flush, four of a kind, full house, flush, straight, three of a kind, two pair, pair, and high card. It should return the highest-ranked combination only.

a binary to start things rspec specs?

Card

• can parse the input strings
• represents which card it is

Hand

• represents a set of cards
• contains validations to make sure hands are possible

Rules

• what are the possible combinations
• what are the ranking of the combinations