public void HasString()
{
AllJoyn.MsgArg arg = new AllJoyn.MsgArg();
arg = "Yo";
Assert.True(arg.HasSignature("s"));
Assert.False(arg.HasSignature("i"));
arg = (byte)42;
Assert.True(arg.HasSignature("y"));
Assert.False(arg.HasSignature("o"));
}