1 require File.expand_path(File.dirname(__FILE__) + '/edgecase')
3 # Greed is a dice game where you roll up to five dice to accumulate
4 # points. The following "score" function will be used to calculate the
5 # score of a single roll of the dice.
7 # A greed roll is scored as follows:
9 # * A set of three ones is 1000 points
11 # * A set of three numbers (other than ones) is worth 100 times the
12 # number. (e.g. three fives is 500 points).
14 # * A one (that is not part of a set of three) is worth 100 points.
16 # * A five (that is not part of a set of three) is worth 50 points.
18 # * Everything else is worth 0 points.
23 # score([1,1,1,5,1]) => 1150 points
24 # score([2,3,4,6,2]) => 0 points
25 # score([3,4,5,3,3]) => 350 points
26 # score([1,5,1,2,4]) => 250 points
28 # More scoring examples are given in the tests below:
30 # Your goal is to write the score method.
33 # You need to write this method
36 class AboutScoringProject < EdgeCase::Koan
37 def test_score_of_an_empty_list_is_zero
38 assert_equal 0, score([])
41 def test_score_of_a_single_roll_of_5_is_50
42 assert_equal 50, score([5])
45 def test_score_of_a_single_roll_of_1_is_100
46 assert_equal 100, score([1])
49 def test_score_of_multiple_1s_and_5s_is_the_sum_of_individual_scores
50 assert_equal 300, score([1,5,5,1])
53 def test_score_of_single_2s_3s_4s_and_6s_are_zero
54 assert_equal 0, score([2,3,4,6])
57 def test_score_of_a_triple_1_is_1000
58 assert_equal 1000, score([1,1,1])
61 def test_score_of_other_triples_is_100x
62 assert_equal 200, score([2,2,2])
63 assert_equal 300, score([3,3,3])
64 assert_equal 400, score([4,4,4])
65 assert_equal 500, score([5,5,5])
66 assert_equal 600, score([6,6,6])
69 def test_score_of_mixed_is_sum
70 assert_equal 250, score([2,5,2,2,3])
71 assert_equal 550, score([5,5,5,5])