class Members < ActiveRecord::Base
    validates_presence_of :email, if: :is_user?
    validates_presence_of :first_name, if: :is_user?
    validates_presence_of :last_name, if: :is_user?

    def is_user?
        :is_user
    end
end

if :is_user
  puts "will always happen" # this will be printed
end

describe "validations" do
  context "member is a user" do
    subject { Member.new(is_user: true) }

    it "validates presence of email" do
      subject.valid?
      expect(subject.errors["email"]).to include("can't be blank")
    end
  end

  context "member is not an user" do
    subject { Member.new(is_user: false) }

    it "doesn't require fields to have info" do
      subject.valid?
      expect(subject.errors["email"]).to_not include("can't be blank")
      expect(subject.errors["first_name"]).to_not include("can't be blank")
      expect(subject.errors["last_name"]).to_not include("can't be blank")
    end
  end
end

context "if user" do<br />
    before { subject.stub(:is_user?) { true } }<br />
    it { should validate_presence_of(:name) }<br />
    it { should validate_presence_of(:email) }<br />
  end

  context "if not user" do<br />
    before { subject.stub(:is_user?) { false } }<br />
    it { should_not validate_presence_of(:name) }<br />
    it { should validate_presence_of(:email) }<br />
  end