using NUnit.Framework; namespace Xamarin.Forms.Core.UnitTests { [TestFixture] public class OpenGLViewUnitTests : BaseTestFixture { [Test] public void Display () { var view = new OpenGLView (); bool displayed = false; ((IOpenGlViewController)view).DisplayRequested += (s, o) => displayed = true; view.Display (); Assert.True (displayed); } } }