// Code under test:
public int GetTheCurrentYear()
{
   return DateTime.Now.Year;
}
//
//--------------------
//
[TestClass]
public class TestClass1
{ 
        [TestMethod]
        public void TestCurrentYear()
        {
            int fixedYear = 2000;

            // Shims can be used only in a ShimsContext:
            using (ShimsContext.Create())
            {
              // Arrange:
                // Shim DateTime.Now to return a fixed date:
                System.Fakes.ShimDateTime.NowGet = 
                () =>
                { return new DateTime(fixedYear, 1, 1); };

                // Instantiate the component under test:
                var componentUnderTest = new MyComponent();

              // Act:
                int year = componentUnderTest.GetTheCurrentYear();

              // Assert: 
                // This will always be true if the component is working:
                Assert.AreEqual(fixedYear, year);
            }
        }
}