Exception.getMessage C# (CSharp) Method

    public virtual string getMessage()
    {
        throw new NotImplementedException();
    }

        public void ExceptionCloneAndGetTypeMethodsAreExecuted()
        {
            Assert.DoesNotThrow(() =>
            {
                var exc = new Exception("Cloneable exception");
                Assert.NotNull(exc);
                Assert.AreEqual("Cloneable exception", exc.getMessage());
                Assert.AreEqual("Exception", exc.getTypeName());

                var clone = exc.clone() as Exception;
                Assert.NotNull(clone);
                Assert.AreEqual(exc.getMessage(), clone.getMessage());
                Assert.AreEqual(exc.getTypeName(), clone.getTypeName());
            });
        }