RSpec.shared_examples "an active element" do
  let(:resolver) { HungryForm::Resolver.new() }
  
  let(:group_options) { {} }
  let(:group) { HungryForm::Group.new(:group, nil, resolver, group_options) {} }

  let(:element_options) { {} }
  let(:element) { described_class.new(:element_name, group, resolver, element_options) {} }

  it_behaves_like "an element"

  describe ".new" do
    it "should have empty error" do
      expect(element.error).to eq ""
    end

    it "should not be required if its parent is not visible" do
      group_options[:visible] = false
      element_options[:required] = true
      expect(element.required?).to eq false
    end
  end

  describe "#valid?" do
    describe "when required" do
      before(:each) do
        element_options[:required] = true
      end

      it "is valid" do
        element.value = "value"
        expect(element.valid?).to eq true
      end

      it "is invalid" do
        element.value = ""
        expect(element.valid?).to eq false
      end
    end
  end
end