public void TestValidate()
 {
     Contacted_Op op = new Contacted_Op("VA3HJ");
     string err = string.Empty;
     string modStr = string.Empty;
     Assert.IsTrue(op.Validate(out err, out modStr));
     Assert.IsNull(err);
     Assert.IsNull(modStr);
 }
        public void TestValidateInvalidCall(
			[Values("stretch", "VA3HJ/W8", "VP9/VA3HJ")] string call)
        {
            Contacted_Op op = new Contacted_Op(call);
            string err = string.Empty;
            string modStr = string.Empty;
            Assert.IsFalse(op.Validate(out err, out modStr));
            Assert.AreEqual("\tNot a valid callsign.", err);
            Assert.IsNull(modStr);
        }