public void GetPublishActionDoesNotExecuteActionIfFilterReturnsFalse() { bool actionExecuted = false; var actionDelegateReference = new MockDelegateReference() { Target = (Action<int>)delegate { actionExecuted = true; } }; var filterDelegateReference = new MockDelegateReference((Predicate<int>)delegate { return false; }); var eventSubscription = new EventSubscription<int>(actionDelegateReference, filterDelegateReference); var publishAction = eventSubscription.GetExecutionStrategy(); publishAction.Invoke(new object[] { null }); Assert.IsFalse(actionExecuted); }
public void StrategyPassesArgumentToDelegates() { string passedArgumentToAction = null; string passedArgumentToFilter = null; var actionDelegateReference = new MockDelegateReference((Action<string>)(obj => passedArgumentToAction = obj)); var filterDelegateReference = new MockDelegateReference((Predicate<string>)(obj => { passedArgumentToFilter = obj; return true; })); var eventSubscription = new EventSubscription<string>(actionDelegateReference, filterDelegateReference); var publishAction = eventSubscription.GetExecutionStrategy(); publishAction.Invoke(new[] { "TestString" }); Assert.Equal("TestString", passedArgumentToAction); Assert.Equal("TestString", passedArgumentToFilter); }
public void GetPublishActionReturnsNullIfFilterIsNull() { var actionDelegateReference = new MockDelegateReference((Action<object>)delegate { }); var filterDelegateReference = new MockDelegateReference((Predicate<object>)delegate { return true; }); var eventSubscription = new EventSubscription<object>(actionDelegateReference, filterDelegateReference); var publishAction = eventSubscription.GetExecutionStrategy(); Assert.NotNull(publishAction); filterDelegateReference.Target = null; publishAction = eventSubscription.GetExecutionStrategy(); Assert.Null(publishAction); }
public void GetPublishActionReturnsNullIfActionIsNullNonGeneric() { var actionDelegateReference = new MockDelegateReference((Action)delegate { }); var eventSubscription = new EventSubscription(actionDelegateReference); var publishAction = eventSubscription.GetExecutionStrategy(); Assert.NotNull(publishAction); actionDelegateReference.Target = null; publishAction = eventSubscription.GetExecutionStrategy(); Assert.Null(publishAction); }
public void GetPublishActionReturnsDelegateThatExecutesTheFilterAndThenTheAction() { var executedDelegates = new List<string>(); var actionDelegateReference = new MockDelegateReference((Action<object>)delegate { executedDelegates.Add("Action"); }); var filterDelegateReference = new MockDelegateReference((Predicate<object>)delegate { executedDelegates.Add( "Filter"); return true; }); var eventSubscription = new EventSubscription<object>(actionDelegateReference, filterDelegateReference); var publishAction = eventSubscription.GetExecutionStrategy(); Assert.NotNull(publishAction); publishAction.Invoke(null); Assert.Equal(2, executedDelegates.Count); Assert.Equal("Filter", executedDelegates[0]); Assert.Equal("Action", executedDelegates[1]); }