chervil/spec/lexer_spec.rb

module Chervil
  RSpec.describe Lexer do
    it 'lexes parens' do
      expect(Lexer.new('()').tokenize).to eq(
        [
          Token.new(:lparen, '('),
          Token.new(:rparen, ')'),
          Token.new(:eof, 'eof')
        ]
      )
    end
  end
end