Mocking the GlassController context

gistfile1.txt

[TestFixture] // using NSubstitute, NUnit and Fluent Assertions
public class GlassControllerContextItemTests
{
        [Test]
        public void GlassController_can_set_and_get_context()
        {
            // Arrange
            StubClass classToReturn = new StubClass();
            var testHarness = new GlassControllerTestHarness();
            testHarness.SitecoreContext.GetCurrentItem<StubClass>().Returns(classToReturn);

            // Act
            var result = testHarness.GlassController.GetContextItem<StubClass>();

            // Assert
            result.Should().Be(classToReturn);
        }
        
        public class StubClass
        {
            
        }
        
        public class GlassControllerTestHarness
        {
            public GlassControllerTestHarness()
            {
                SitecoreContext = Substitute.For<ISitecoreContext>();
                GlassHtml = Substitute.For<IGlassHtml>();
                RenderingContextWrapper = Substitute.For<IRenderingContextWrapper>();
                HttpContext = Substitute.For<HttpContextBase>();
                GlassController = new GlassController(SitecoreContext, GlassHtml, RenderingContextWrapper, HttpContext);
            }

            public HttpContextBase HttpContext { get; private set; }

            public IRenderingContextWrapper RenderingContextWrapper { get; private set; }

            public IGlassHtml GlassHtml { get; private set; }

            public ISitecoreContext SitecoreContext { get; private set; }

            public GlassController GlassController { get; private set; }
        }
}