public void OnRequestToChangeStateToStateNotAllowed_ThrowsException()
{
var factory = new TestStateFactory(null, null);
var stateMachine = new StateMachine(factory);
stateMachine.ChangeState(typeof(TestStateFirst));
Assert.Throws <ArgumentOutOfRangeException>(() => stateMachine.ChangeState(typeof(TestStateNotAllowed)));
}
public void OnChangeState_SetsLastType()
{
var factory = new TestStateFactory(null, null);
var stateMachine = new StateMachine(factory);
stateMachine.ChangeState(typeof(TestStateFirst));
stateMachine.ChangeState(typeof(TestStateSecond));
Assert.That(stateMachine.LastStateWas(typeof(TestStateFirst)));
}
public void OnChangeState_CallsStartOnNewState()
{
var called = false;
var factory = new TestStateFactory(() => { called = true; }, null);
var stateMachine = new StateMachine(factory);
stateMachine.ChangeState(typeof(TestStateFirst));
Assert.That(called);
}
public void OnChangeState_CallsExitOnOldState()
{
var called = false;
var factory = new TestStateFactory(null, () => { called = true; });
var stateMachine = new StateMachine(factory);
stateMachine.ChangeState(typeof(TestStateFirst));
Assert.That(!called);
stateMachine.ChangeState(typeof(TestStateSecond));
Assert.That(called);
}
public void OnChangeState_ChangesState()
{
var factory = new TestStateFactory(null, null);
var stateMachine = new StateMachine(factory);
var state = stateMachine.CurrentState;
stateMachine.ChangeState(typeof(TestStateFirst));
Assert.That(state != stateMachine.CurrentState);
Assert.That(stateMachine.CurrentStateIs(typeof(TestStateFirst)));
}