Handler is required to be an explicit instance now

Author: lukaszreszke

ruby_event_store-rspec/spec/ruby_event_store/rspec/have_subscribed_to_events_spec.rb

@@ -12,7 +12,7 @@ module RSpec
             )
         )
       end
-      let(:handler) { Handler }
+      let(:handler) { Handler.new }
 
       def matcher(*expected)
         HaveSubscribedToEvents.new(*expected, differ: colorless_differ, phraser: phraser)

ruby_event_store-rspec/spec/ruby_event_store/rspec/matchers_spec.rb

@@ -19,9 +19,10 @@ module RSpec
         specify { expect(matchers.have_subscribed_to_events(FooEvent, BarEvent)).to be_an(HaveSubscribedToEvents) }
 
         specify do
-          event_store.subscribe(Handler, to: [FooEvent])
-          expect(Handler).to matchers.have_subscribed_to_events(FooEvent).in(event_store)
-          expect(Handler).not_to matchers.have_subscribed_to_events(BarEvent).in(event_store)
+          handler = Handler.new
+          event_store.subscribe(handler, to: [FooEvent])
+          expect(handler).to matchers.have_subscribed_to_events(FooEvent).in(event_store)
+          expect(handler).not_to matchers.have_subscribed_to_events(BarEvent).in(event_store)
         end
       end