public void UsingDisposedObject_Throws()
{
var cache = new CameraCache <int>();
cache.Dispose();
Assert.Throws <System.ObjectDisposedException>(() => cache.GetOrCreate(0, 0));
Assert.Throws <System.ObjectDisposedException>(() => cache.ClearCamerasUnusedFor(0, 0));
Assert.Throws <System.ObjectDisposedException>(() => cache.Clear());
Assert.Throws <System.ObjectDisposedException>(() => cache.Dispose());
}
public void GetOrCreate_And_Dispose_Works()
{
var cache = new CameraCache <int>();
// Create the camera
var camera = cache.GetOrCreate(0, 0);
Assert.IsNotNull(camera);
// Get the same camera
var sameCamera = cache.GetOrCreate(0, 0);
Assert.IsNotNull(sameCamera);
Assert.True(ReferenceEquals(camera, sameCamera));
Assert.AreEqual(camera.GetInstanceID(), sameCamera.GetInstanceID());
// Get another camera
var otherCamera = cache.GetOrCreate(1, 0);
Assert.IsNotNull(otherCamera);
Assert.False(ReferenceEquals(camera, otherCamera));
Assert.AreNotEqual(camera.GetInstanceID(), otherCamera.GetInstanceID());
// Clear the cameras
cache.Dispose();
// Assert the cameras are destroyed on the C++ side
Assert.True(camera.Equals(null));
Assert.True(sameCamera.Equals(null));
Assert.True(otherCamera.Equals(null));
}