Shared example group - Example groups - RSpec Core - RSpec - Relish

Shared example groups let you describe behaviour of types or modules. When declared, a shared group's content is stored. It is only realized in the context of another example group, which provides any context the shared group needs to run. A shared group is included in another group using the it_behaves_like() or it_should_behave_like() methods. require "set" shared_examples_for "a collection" do