public void RegisterACommandShouldRaiseCanExecuteEvent() { TestableCompositeCommand multiCommand = new TestableCompositeCommand(); TestCommand testCommand = new TestCommand(); multiCommand.RegisterCommand(new TestCommand()); Assert.IsTrue(multiCommand.CanExecuteChangedRaised); }
public void ShouldDelegateExecuteToSingleRegistrant() { TestableCompositeCommand multiCommand = new TestableCompositeCommand(); TestCommand testCommand = new TestCommand(); multiCommand.RegisterCommand(testCommand); Assert.IsFalse(testCommand.ExecuteCalled); multiCommand.Execute(null); Assert.IsTrue(testCommand.ExecuteCalled); }
public void UnregisterCommandShouldRaiseCanExecuteEvent() { TestableCompositeCommand multiCommand = new TestableCompositeCommand(); TestCommand testCommandOne = new TestCommand(); multiCommand.RegisterCommand(testCommandOne); multiCommand.CanExecuteChangedRaised = false; multiCommand.UnregisterCommand(testCommandOne); Assert.IsTrue(multiCommand.CanExecuteChangedRaised); }
public void ShouldDelegateCanExecuteToSingleRegistrant() { TestableCompositeCommand multiCommand = new TestableCompositeCommand(); TestCommand testCommand = new TestCommand(); multiCommand.RegisterCommand(testCommand); Assert.IsFalse(testCommand.CanExecuteCalled); multiCommand.CanExecute(null); Assert.IsTrue(testCommand.CanExecuteCalled); }
public void ShouldReraiseCanExecuteChangedEvent() { TestableCompositeCommand multiCommand = new TestableCompositeCommand(); TestCommand testCommandOne = new TestCommand() { CanExecuteValue = true }; Assert.IsFalse(multiCommand.CanExecuteChangedRaised); multiCommand.RegisterCommand(testCommandOne); testCommandOne.FireCanExecuteChanged(); Assert.IsTrue(multiCommand.CanExecuteChangedRaised); }
public void ExecuteDoesNotThrowWhenAnExecuteCommandModifiesTheCommandsCollection() { TestableCompositeCommand multiCommand = new TestableCompositeCommand(); SelfUnregisterableCommand commandOne = new SelfUnregisterableCommand(multiCommand); SelfUnregisterableCommand commandTwo = new SelfUnregisterableCommand(multiCommand); multiCommand.RegisterCommand(commandOne); multiCommand.RegisterCommand(commandTwo); multiCommand.Execute(null); Assert.IsTrue(commandOne.ExecutedCalled); Assert.IsTrue(commandTwo.ExecutedCalled); }
public void UnregisterCommandDisconnectsCanExecuteChangedDelegate() { TestableCompositeCommand multiCommand = new TestableCompositeCommand(); TestCommand testCommandOne = new TestCommand() { CanExecuteValue = true }; multiCommand.RegisterCommand(testCommandOne); multiCommand.UnregisterCommand(testCommandOne); multiCommand.CanExecuteChangedRaised = false; testCommandOne.FireCanExecuteChanged(); Assert.IsFalse(multiCommand.CanExecuteChangedRaised); }
public void UnregisterCommandRemovesFromExecuteDelegation() { TestableCompositeCommand multiCommand = new TestableCompositeCommand(); TestCommand testCommandOne = new TestCommand() { CanExecuteValue = true }; multiCommand.RegisterCommand(testCommandOne); multiCommand.UnregisterCommand(testCommandOne); Assert.IsFalse(testCommandOne.ExecuteCalled); multiCommand.Execute(null); Assert.IsFalse(testCommandOne.ExecuteCalled); }
public void ShouldDelegateCanExecuteToMultipleRegistrants() { TestableCompositeCommand multiCommand = new TestableCompositeCommand(); TestCommand testCommandOne = new TestCommand(); TestCommand testCommandTwo = new TestCommand(); multiCommand.RegisterCommand(testCommandOne); multiCommand.RegisterCommand(testCommandTwo); Assert.IsFalse(testCommandOne.CanExecuteCalled); Assert.IsFalse(testCommandTwo.CanExecuteCalled); multiCommand.CanExecute(null); Assert.IsTrue(testCommandOne.CanExecuteCalled); Assert.IsTrue(testCommandTwo.CanExecuteCalled); }
public void ExecuteShouldHappenOnceWhenRegisteredMultipleTimes() { TestableCompositeCommand multiCommand = new TestableCompositeCommand(); TestCommand testCommand = new TestCommand() { CanExecuteValue = true }; multiCommand.RegisterCommand(testCommand); multiCommand.RegisterCommand(testCommand); Assert.AreEqual <int>(0, testCommand.ExecuteCallCount); multiCommand.Execute(null); Assert.AreEqual <int>(1, testCommand.ExecuteCallCount); }
public void CanExecuteShouldReturnTrueIfAllRegistrantsTrue() { TestableCompositeCommand multiCommand = new TestableCompositeCommand(); TestCommand testCommandOne = new TestCommand() { CanExecuteValue = true }; TestCommand testCommandTwo = new TestCommand() { CanExecuteValue = true }; multiCommand.RegisterCommand(testCommandOne); multiCommand.RegisterCommand(testCommandTwo); Assert.IsTrue(multiCommand.CanExecute(null)); }
public void CanExecuteShouldReturnFalseWithNoCommandsRegistered() { TestableCompositeCommand multiCommand = new TestableCompositeCommand(); Assert.IsFalse(multiCommand.CanExecute(null)); }
public void ShouldBubbleException() { TestableCompositeCommand multiCommand = new TestableCompositeCommand(); BadDivisionCommand testCommand = new BadDivisionCommand(); multiCommand.RegisterCommand(testCommand); multiCommand.Execute(null); }
public void ExecuteShouldHappenOnceWhenRegisteredMultipleTimes() { TestableCompositeCommand multiCommand = new TestableCompositeCommand(); TestCommand testCommand = new TestCommand() { CanExecuteValue = true }; multiCommand.RegisterCommand(testCommand); multiCommand.RegisterCommand(testCommand); Assert.AreEqual<int>(0, testCommand.ExecuteCallCount); multiCommand.Execute(null); Assert.AreEqual<int>(1, testCommand.ExecuteCallCount); }