require "spec_helper_lite" require 'undo/storage/memory' describe Undo::Storage::Memory do let(:object) { double :object } it "stores any object" do subject.store 123, object expect(subject.fetch 123).to eq object end it "deletes stored object" do subject.store 123, object subject.delete 123 expect { subject.fetch 123 }.to raise_error(KeyError) end it "accepts options" do options = { foo: :bar } expect do subject.store 123, object, options subject.fetch 123, options subject.delete 123, options end.not_to raise_error end end