public void EnablesIfTargetNullBehaviourIsEnableAndTargetIsNull()
{
var cmd = new CommandAction(this.subject, null, "DoSomething", ActionUnavailableBehaviour.Enable, ActionUnavailableBehaviour.Disable);
View.SetActionTarget(this.subject, null);
Assert.True(cmd.CanExecute(null));
}
public void PropagatesGuardPropertException()
{
var cmd = new CommandAction(this.subject, null, "DoSomethingWithUnsuccessfulGuardMethod", ActionUnavailableBehaviour.Throw, ActionUnavailableBehaviour.Throw);
var e = Assert.Throws<InvalidOperationException>(() => cmd.CanExecute(null));
Assert.AreEqual("foo", e.Message);
}
public void ControlIsEnabledIfTargetIsDefault()
{
View.SetActionTarget(this.subject, View.InitialActionTarget);
var cmd = new CommandAction(this.subject, null, "DoSomething", ActionUnavailableBehaviour.Throw, ActionUnavailableBehaviour.Throw);
Assert.True(cmd.CanExecute(null));
}
public void ChangesEnabledStateWhenGuardChanges()
{
this.target.CanDoSomethingWithGuard = false;
var cmd = new CommandAction(this.subject, null, "DoSomethingWithGuard", ActionUnavailableBehaviour.Throw, ActionUnavailableBehaviour.Throw);
Assert.False(cmd.CanExecute(null));
this.target.CanDoSomethingWithGuard = true;
Assert.True(cmd.CanExecute(null));
}
public void IgnoresGuardIfGuardDoesNotReturnBool()
{
var cmd = new CommandAction(this.subject, null, "DoSomethingWithBadGuard", ActionUnavailableBehaviour.Throw, ActionUnavailableBehaviour.Throw);
Assert.True(cmd.CanExecute(true));
}
public void DisablesIfTargetAndActionExistAndGuardMethodReturnsFalse()
{
this.target.CanDoSomethingWithGuard = false;
var cmd = new CommandAction(this.subject, null, "DoSomethingWithGuard", ActionUnavailableBehaviour.Throw, ActionUnavailableBehaviour.Throw);
Assert.False(cmd.CanExecute(null));
}
public void EnablesIfTargetAndActionExistAndNoGuardMethod()
{
var cmd = new CommandAction(this.subject, null, "DoSomething", ActionUnavailableBehaviour.Throw, ActionUnavailableBehaviour.Throw);
Assert.True(cmd.CanExecute(null));
}
public void EnablesIfActionNonExistentBehaviourIsThrowAndActionIsNonExistent()
{
var cmd = new CommandAction(this.subject, null, "DoSomething", ActionUnavailableBehaviour.Throw, ActionUnavailableBehaviour.Enable);
View.SetActionTarget(this.subject, new Target2());
Assert.True(cmd.CanExecute(null));
}