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 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 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 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 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 CanExecuteShouldReturnFalseIfASingleRegistrantsFalse()
{
TestableCompositeCommand multiCommand = new TestableCompositeCommand();
TestCommand testCommandOne = new TestCommand() { CanExecuteValue = true };
TestCommand testCommandTwo = new TestCommand() { CanExecuteValue = false };
multiCommand.RegisterCommand(testCommandOne);
multiCommand.RegisterCommand(testCommandTwo);
Assert.IsFalse(multiCommand.CanExecute(null));
}
public void CanExecuteShouldReturnFalseWithNoCommandsRegistered()
{
TestableCompositeCommand multiCommand = new TestableCompositeCommand();
Assert.IsFalse(multiCommand.CanExecute(null));
}