public void EchoSimpleString()
{
// Arrange
string txt = "ABC";
PayLoad PLRequest = new PayLoad("Echo");
PLRequest.AddValue(txt);
PLRequest.ClosePackage();
//Act
PayLoad PLRC = mDriver.ExceuteJavaScriptPayLoad(PLRequest);
string txtRC = PLRC.GetValueString();
//Assert
Assert.AreEqual(PLRC.Name, "Echo Response");
Assert.AreEqual(txt, txtRC, "txt=txtRC");
}