Dry-Type UUID

uuid.rb

UUID = Types::Strict::String.constrained(
        format: /\A[0-9a-fA-F]{8}-[0-9a-fA-F]{4}-4[0-9a-fA-F]{3}-[89abAB][0-9a-fA-F]{3}-[0-9a-fA-F]{12}\z/i)  
        
        
describe UUID do
  context 'UUID' do
    include Voom::Types
    let(:uuid){SecureRandom.uuid}
    let(:bad_uuid){uuid+"&"}
    it 'should constrain' do
      expect{UUID['']}.to raise_error(Dry::Types::ConstraintError)
    end
    it 'should not constrain' do
      expect(UUID[uuid]).to eq(uuid)
    end
    it 'should constrain on reg expression' do
      expect{UUID[bad_uuid]}.to raise_error(Dry::Types::ConstraintError)
    end
  end
end