public void TestWait()
        {
            var session = new MockTaskSession();

            session.VerifyStart();

            session.VerifyCommand(() => session.Wait(WaitMode.Wait3270Mode), "Wait(3270Mode)");
            session.VerifyCommand(() => session.Wait(WaitMode.Output, 10), "Wait(10,Output)");

            // Force an exception.
            session.ExceptionMode = true;
            session.AllFail       = true;
            Assert.Throws <X3270ifCommandException>(() => session.Wait(WaitMode.Unlock));

            session.Close();
        }