System.Reactive.EventStreamSpec.WhenPushingSubscribedEvent_ThenDoesCallsSubscriber C# (CSharp) Method

        public void WhenPushingSubscribedEvent_ThenDoesCallsSubscriber()
        {
            var stream = new EventStream();
            var called = false;

            using (var subscription = stream.Of<PatientEnteredHospital>().Subscribe(c => called = true))
            {
                stream.Push(new PatientEnteredHospital());
            }

            Assert.True(called);
        }