public void DataOutputEmptyData()
        {
            //--Arrange
            TestOutput TestOutput     = new TestOutput();
            string     expectedOutput = null;

            //--Act
            TestOutput.DataOutput(expectedOutput);

            //--Assert
            Assert.AreEqual(expectedOutput, TestOutput.DataOutputTest);
        }
        public void DataOutputSomeData()
        {
            //--Arrange
            TestOutput TestOutput2     = new TestOutput();
            string     expectedOutput2 = "IPhoneHeadset sound";

            //--Act
            TestOutput2.DataOutput(expectedOutput2);

            //--Assert
            Assert.AreEqual(expectedOutput2, TestOutput2.DataOutputTest);
        }