public void MikorIndul_JoIndulasiIdo()
        {
            JaratKezelo jk = new JaratKezelo();

            jk.UjJarat("S213", "Budapest", "Berlin", new DateTime(2019, 03, 01, 12, 50, 0));
            Assert.AreEqual(
                new DateTime(2019, 03, 01, 12, 50, 0),
                jk.MikorIndul("S213")
                );
        }
        public void MikorIndul_NemLetezoJarat()
        {
            JaratKezelo jk = new JaratKezelo();

            jk.UjJarat("S213", "Budapest", "Berlin", new DateTime(2019, 03, 01, 12, 50, 0));
            Assert.Throws <ArgumentException>(
                () =>
            {
                jk.MikorIndul("A123");
            }
                );
        }