예제 #1
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        public void RegisterACommandShouldRaiseCanExecuteEvent()
        {
            TestableCompositeCommand multiCommand = new TestableCompositeCommand();
            TestCommand testCommand = new TestCommand();

            multiCommand.RegisterCommand(new TestCommand());
            Assert.IsTrue(multiCommand.CanExecuteChangedRaised);
        }
예제 #2
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        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);
        }
예제 #3
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        public void UnregisterCommandShouldRaiseCanExecuteEvent()
        {
            TestableCompositeCommand multiCommand = new TestableCompositeCommand();
            TestCommand testCommandOne            = new TestCommand();

            multiCommand.RegisterCommand(testCommandOne);
            multiCommand.CanExecuteChangedRaised = false;
            multiCommand.UnregisterCommand(testCommandOne);

            Assert.IsTrue(multiCommand.CanExecuteChangedRaised);
        }
예제 #4
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        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);
        }
예제 #5
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        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);
        }
예제 #6
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        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);
        }
예제 #7
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        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);
        }
예제 #8
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        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);
        }
예제 #9
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        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);
        }
예제 #10
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        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);
        }
예제 #11
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        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);
        }
예제 #12
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        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));
        }
예제 #13
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        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);
        }
예제 #14
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 public void CanExecuteShouldReturnFalseWithNoCommandsRegistered()
 {
     TestableCompositeCommand multiCommand = new TestableCompositeCommand();
     Assert.IsFalse(multiCommand.CanExecute(null));
 }
예제 #15
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        public void ShouldBubbleException()
        {
            TestableCompositeCommand multiCommand = new TestableCompositeCommand();
            BadDivisionCommand testCommand = new BadDivisionCommand();

            multiCommand.RegisterCommand(testCommand);
            multiCommand.Execute(null);
        }
예제 #16
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        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);

        }
예제 #17
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        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);
        }
예제 #18
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        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);
        }
예제 #19
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        public void UnregisterCommandShouldRaiseCanExecuteEvent()
        {
            TestableCompositeCommand multiCommand = new TestableCompositeCommand();
            TestCommand testCommandOne = new TestCommand();

            multiCommand.RegisterCommand(testCommandOne);
            multiCommand.CanExecuteChangedRaised = false;
            multiCommand.UnregisterCommand(testCommandOne);

            Assert.IsTrue(multiCommand.CanExecuteChangedRaised);
        }
예제 #20
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        public void CanExecuteShouldReturnFalseWithNoCommandsRegistered()
        {
            TestableCompositeCommand multiCommand = new TestableCompositeCommand();

            Assert.IsFalse(multiCommand.CanExecute(null));
        }
예제 #21
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        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));
        }
예제 #22
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        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);
        }