public void EmailTraceListener_Unit_CreateMailBody_Optimal()
        {
            using (MockEmailTraceListener target = new MockEmailTraceListener()) {
                String message1 = "This is a test.";
                String message2 = "This is another test.";
                target.WriteLine(message1);
                target.WriteLine(message2);

                String actual = target.CreateMailBodyDerived();
                StringAssert.Contains(actual, message1);
                StringAssert.Contains(actual, message2);
            }
        }
        public void EmailTraceListener_Unit_CreateMailBody_HasNoLines()
        {
            using (MockEmailTraceListener target = new MockEmailTraceListener()) {

                String actual = target.CreateMailBodyDerived();
                Assert.AreEqual(String.Empty, actual);
            }
        }