scrabble_score_test.rb

#!/usr/bin/env ruby
gem 'minitest', '>= 5.0.0'
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
    assert_equal 0, Scrabble.new(" \t\n").score
  end

  def test_nil_scores_zero
    assert_equal 0, Scrabble.new(nil).score
  end

  def test_scores_very_short_word
    assert_equal 1, Scrabble.new('a').score
  end

  def test_scores_other_very_short_word
    assert_equal 4, Scrabble.new('f').score
  end

  def test_simple_word_scores_the_number_of_letters
    assert_equal 6, Scrabble.new('street').score
  end

  def test_complicated_word_scores_more
    assert_equal 22, Scrabble.new('quirky').score
  end

  def test_scores_are_case_insensitive
    assert_equal 41, Scrabble.new('OXYPHENBUTAZONE').score
  end

  def test_convenient_scoring
    assert_equal 13, Scrabble.score('alacrity')
  end

  def test_scores_very_short_word_double
    assert_equal 2, Scrabble.new('a', Multiplier.new(2)).score
  end

  def test_complicated_word_scores_double
    assert_equal 44, Scrabble.new('quirky', Multiplier.new(2)).score
  end

  def test_complicated_word_scores_triple
    assert_equal 66, Scrabble.new('quirky', Multiplier.new(3)).score
  end
end