Given a word, compute the scrabble score for that word.
You'll need these:
Letter Value A, E, I, O, U, L, N, R, S, T 1 D, G 2 B, C, M, P 3 F, H, V, W, Y 4 K 5 J, X 8 Q, Z 10
"cabbage" should be scored as worth 14 points:
And to total:
3 + 2*1 + 2*3 + 2 + 1
3 + 2 + 6 + 3
5 + 9
For installation and learning resources, refer to the Ruby resources page.
For running the tests provided, you will need the Minitest gem. Open a terminal window and run the following command to install minitest:
gem install minitest
If you would like color output, you can
require 'minitest/pride' in
the test file, or note the alternative instruction, below, for running
the test file.
Run the tests from the exercise directory using the following command:
To include color from the command line:
ruby -r minitest/pride scrabble_score_test.rb
Inspired by the Extreme Startup game https://github.com/rchatley/extreme_startup
It's possible to submit an incomplete solution so you can see how others have completed the exercise.
require 'minitest/autorun' require_relative 'scrabble_score' class ScrabbleTest < Minitest::Test def test_empty_word_scores_zero assert_equal 0, Scrabble.new('').score end def test_whitespace_scores_zero skip assert_equal 0, Scrabble.new(" \t\n").score end def test_nil_scores_zero skip assert_equal 0, Scrabble.new(nil).score end def test_scores_very_short_word skip assert_equal 1, Scrabble.new('a').score end def test_scores_other_very_short_word skip assert_equal 4, Scrabble.new('f').score end def test_simple_word_scores_the_number_of_letters skip assert_equal 6, Scrabble.new('street').score end def test_complicated_word_scores_more skip assert_equal 22, Scrabble.new('quirky').score end def test_scores_are_case_insensitive skip assert_equal 41, Scrabble.new('OXYPHENBUTAZONE').score end def test_convenient_scoring skip assert_equal 13, Scrabble.score('alacrity') end end
=begin Write your code for the 'Scrabble Score' exercise in this file. Make the tests in `scrabble_score_test.rb` pass. To get started with TDD, see the `README.md` file in your `ruby/scrabble-score` directory. =end # Elapsed time: ~ 20 mins class Scrabble def initialize(word) @word = word end def self.score(word) new(word).score end def score return 0 if word.nil? word .downcase .gsub(/[aeioulnrst]/, '1') .gsub(/[dg]/, '2') .gsub(/[bcmp]/, '3') .gsub(/[fhvwy]/, '4') .gsub(/k/, '5') .gsub(/[jx]/, '8') .gsub(/[qz]/, '9') .chars.map(&:to_i).sum end private attr_reader :word end
A huge amount can be learned from reading other people’s code. This is why we wanted to give exercism users the option of making their solutions public.
Here are some questions to help you reflect on this solution and learn the most from it.