blog-post-830-test-fix-validation-error

plan_spec.rb

require 'rails_helper'

RSpec.describe Plan, type: :model do
  describe ".price"  do
    let(:plan) { Plan.create(name: 'basic') }

    describe "has less than 2 members"  do
      (...)
    end

    describe "has more than two members"  do
      let(:joe) { Member.create(first_name: 'Joe', last_name: 'Montana') }
      let(:mary) { Member.create(first_name: 'Mary', last_name: 'Jana') }
      let(:sarah) { Member.create(first_name: 'Sarah', last_name: 'Anderson') }

      it "should give 1 discount per additional user"  do
        plan.members << joe
        plan.members << mary
        plan.members << sarah
        expect(plan.price).to eql(19)
      end
    end
  end
end