module PageMagic
  describe InstanceMethods do
    include_context :webapp_fixture

    let(:page_class) do
      Class.new do
        include PageMagic
        url '/page1'
        link(:next_page, text: 'next page')
      end
    end

    subject do
      page_class.visit(application: rack_app)
    end

    it_behaves_like 'session accessor'
    it_behaves_like 'element watcher'
    it_behaves_like 'waiter'
    it_behaves_like 'element locator'

    describe 'execute_on_load' do
      it 'runs the on_load_hook in the context of self' do
        instance = subject.current_page
        page_class.on_load do
          extend RSpec::Matchers
          expect(self).to be(instance)
        end

        subject.execute_on_load
      end

      it 'returns self' do
        expect(subject.execute_on_load).to be(subject.current_page)
      end
    end

    describe '#respond_to?' do
      it 'checks self' do
        expect(subject.respond_to?(:visit)).to eq(true)
      end

      it 'checks the current page' do
        expect(subject.respond_to?(:next_page)).to eq(true)
      end
    end

    describe 'session' do
      it 'gives access to the page magic object wrapping the user session' do
        expect(subject.session.raw_session).to be_a(Capybara::Session)
      end
    end

    describe 'text' do
      it 'returns the text on the page' do
        expect(subject.text).to eq('next page')
      end
    end

    describe 'text_on_page?' do
      it 'returns true if the text is present' do
        expect(subject.text_on_page?('next page')).to eq(true)
      end

      it 'returns false if the text is not present' do
        expect(subject.text_on_page?('not on page')).to eq(false)
      end
    end

    describe 'title' do
      it 'returns the title' do
        expect(subject.title).to eq('page1')
      end
    end

    describe '#visit' do
      it 'goes to the class define url' do
        expect(subject.session.current_path).to eq('/page1')
      end
    end

    describe 'method_missing' do
      it 'gives access to the elements defined on your page classes' do
        expect(subject.next_page.tag_name).to eq('a')
      end
    end
  end
end