 			})
 			subject.rx.action = action
             // Setting the action has the asynchronous effect of adding a target.
-            expect(subject.target).toEventuallyNot( beNil() )
-
+            expect(subject.target).toEventuallyNot(beNil())
 			_ = subject.target?.perform(subject.action, with: subject)
-
-			expect(executed) == true
+			expect(executed).to(beTrue())
 		}
 
 		it("disposes of old action subscriptions when re-set") {

			var subject = UIBarButtonItem(barButtonSystemItem: .save, target: nil, action: nil)

			subject.rx.action = emptyAction(.just(false))
            expect(subject.target).toEventuallyNot( beNil() )

			expect(subject.isEnabled) == false
		}

		it("doesn't execute a disabled action when tapped") {

			})

			_ = subject.target?.perform(subject.action, with: subject)
			expect(executed) == false
		}

