Numbers to English

gistfile1.txt

require 'rspec'
require_relative '../../lib/to_english'

describe Fixnum do
  describe '#to_english' do
    it 'returns one for 1' do
      expect(1.to_english).to eq('one')
    end
    it 'returns two for 2' do
      expect(2.to_english).to eq('two')
    end
    it 'returns three for 3' do
      expect(3.to_english).to eq('three')
    end
    it 'returns four for 4' do
      expect(4.to_english).to eq('four')
    end
    it 'returns five for 5' do
      expect(5.to_english).to eq('five')
    end
    it 'returns six for 6' do
      expect(6.to_english).to eq('six')
    end
    it 'returns seven for 7' do
      expect(7.to_english).to eq('seven')
    end
    it 'returns eight for 8' do
      expect(8.to_english).to eq('eight')
    end
    it 'returns nine for 9' do
      expect(9.to_english).to eq('nine')
    end
    it 'returns ten for 10' do
      expect(10.to_english).to eq('ten')
    end
    it 'returns eleven for 11' do
      expect(11.to_english).to eq('eleven')
    end
    it 'returns twelve for 12' do
      expect(12.to_english).to eq('twelve')
    end
    it 'returns thirteen for 13' do
      expect(13.to_english).to eq('thirteen')
    end
    it 'returns fourteen for 14' do
      expect(14.to_english).to eq('fourteen')
    end
    it 'returns fourteen for 15' do
      expect(15.to_english).to eq('fifteen')
    end
    it 'returns eighteen for 18' do
      expect(18.to_english).to eq('eighteen')
    end
    [
      [20, 'twenty'],
      [21, 'twenty one'],
      [30, 'thirty'],
      [31, 'thirty one'],
      [40, 'fourty'],
      [41, 'fourty one'],
      [50, 'fifty'],
      [51, 'fifty one'],
      [60, 'sixty'],
      [61, 'sixty one'],
      [70, 'seventy'],
      [71, 'seventy one'],
      [80, 'eighty'],
      [81, 'eighty one'],
      [90, 'ninety'],
      [91, 'ninety one'],
      [100, 'one hundred'],
      [101, 'one hundred one'],
    ].each do |number, english|
      it "returns #{english} for #{number}" do
        expect(number.to_english).to eq(english)
      end
    end
  end
end