using UnitTestSharp;

namespace Glass.UnitTests
{
    public class MouseLockTests : TestFixture
    {
        public class CtorTests : TestFixture
        {
            public void GivenAControl_HoldsOnToIt()
            {
                var control = new Control("locked");

                CheckEqual(control, new MouseManager.MouseLock(control).Control);
            }

            public void GivenNull_HoldsNoControl()
            {
                CheckNull(new MouseManager.MouseLock(null).Control);
            }
        }

        public class LiveTests : TestFixture
        {
            public void FreshlyTaken_IsLive()
            {
                Check(new MouseManager.MouseLock(new Control("locked")).Live);
            }

            public void AfterItsControlCancels_IsNotLive()
            {
                var control = new Control("locked");
                var mouseLock = new MouseManager.MouseLock(control);

                control.CancelMouseInput();

                CheckFalse(mouseLock.Live);
            }

            public void AfterItsControlCancelsTwice_IsStillNotLive()
            {
                var control = new Control("locked");
                var mouseLock = new MouseManager.MouseLock(control);

                control.CancelMouseInput();
                control.CancelMouseInput();

                CheckFalse(mouseLock.Live);
            }

            public void TakenAfterAnEarlierCancel_IsLive()
            {
                var control = new Control("locked");
                control.CancelMouseInput();

                Check(new MouseManager.MouseLock(control).Live);
            }

            public void WhenSomeOtherControlCancels_StaysLive()
            {
                var control = new Control("locked");
                var mouseLock = new MouseManager.MouseLock(control);

                new Control("stranger").CancelMouseInput();

                Check(mouseLock.Live);
            }

            public void Default_IsNotLive()
            {
                CheckFalse(default(MouseManager.MouseLock).Live);
            }

            public void OverANullControl_IsNotLive()
            {
                CheckFalse(new MouseManager.MouseLock(null).Live);
            }
        }
    }
}