require 'bundler/setup'
require 'minitest/autorun'
require 'craft'

describe Craft do
  let :html do
    '<html><ul><li>1</li><li>2</li>'
  end

  let :klass do
    Class.new Craft
  end

  let :instance do
    klass.parse html
  end

  describe '.many' do
    it 'extracts nodes' do
      klass.many 'foo', 'li'
      instance.foo.must_equal %w(1 2)
    end

    it 'transforms' do
      klass.many 'foo', 'li', ->(node) { node.text.to_i }
      instance.foo.must_equal [1, 2]
    end
  end

  describe '.one' do
    it 'extracts a node' do
      klass.one 'foo', 'li'
      instance.foo.must_equal '1'
    end

    it 'transforms' do
      klass.one 'foo', 'li', ->(node) { node.text.to_i }
      instance.foo.must_equal 1
    end

    describe 'given no matches' do
      before do
        klass.one 'foo', 'foo'
      end

      it 'returns nil' do
        instance.foo.must_be_nil
      end
    end
  end

  it 'nests' do
    nest = Class.new Craft
    nest.many 'foo', 'li'
    klass.one 'foo', 'ul', nest
    instance.foo.foo.must_equal %w(1 2)
  end
end