co4830Concat_string_string.runTest C# (CSharp) Method

 public bool runTest()
   {
   Console.WriteLine(s_strTFPath + " " + s_strTFName + " , for " + s_strClassMethod + " , Source ver " + s_strDtTmVer);
   int iCountErrors = 0;
   int iCountTestcases = 0;
   String strLoc = "Loc_000oo";
   String strValue = String.Empty;
   try
     {
     String str1 = String.Empty, str2 = String.Empty, str3 = String.Empty;
     String str = null;
     strLoc = "Loc_498hv";
     iCountTestcases++;
     str = String.Concat (str1, str2);
     if(!str.Equals (String.Empty))
       {
       iCountErrors++;
       printerr( "Error_498ch! incorrect string returned for null argument=="+str);
       } 
     strLoc = "Loc_982hc.2";			
     iCountTestcases++;
     try {
     str = String.Concat (null, str2);
     if(!str.Equals (String.Empty))
       {
       iCountErrors++;
       printerr( "Error_687ch.2! incorrect string returned for null argument=="+str);
       } 
     }
     catch (ArgumentException aexc) {
     iCountErrors++;
     printerr( "Error_498ch.2! Unexpcted! " + aexc);
     }
     strLoc = "Loc_982hc.3";			
     iCountTestcases++;
     try {
     str = String.Concat (str1, null);
     if(!str.Equals (String.Empty))
       {
       iCountErrors++;
       printerr( "Error_687ch.3! incorrect string returned for null argument=="+str);
       } 
     }
     catch (ArgumentException aexc) {
     iCountErrors++;
     printerr( "Error_498ch.3! Unexpcted! " + aexc);
     }
     strLoc = "Loc_982hc.4";			
     iCountTestcases++;
     try {
     str = String.Concat (null, null);
     if(str != String.Empty)
       {
       iCountErrors++;
       printerr( "Error_687ch.4! incorrect string returned for null argument=="+str);
       Console.WriteLine (str == String.Empty);
       } 
     }
     catch (ArgumentException aexc) {
     iCountErrors++;
     printerr( "Error_498ch.4! Unexpcted! " + aexc);
     }
     strLoc = "Loc_498hv";
     iCountTestcases++;
     str1 = "abc";
     str2 = "123";
     str = String.Concat (str1, str2);
     if(!str.Equals ("abc123"))
       {
       iCountErrors++;
       printerr( "Error_498ch! incorrect string returned for null argument=="+str);
       } 
     IntlStrings intl = new IntlStrings();
     str1 = intl.GetString(5, true, true);
     str2 = intl.GetString(4, true, true);
     str3 = intl.GetString(9, true, true);
     String testString = String.Concat(str1, str2, null);
     str = String.Concat (str1, str2);
     if(! str.Equals(testString)) {
     ++iCountErrors;
     }
     } catch (Exception exc_general ) {
     ++iCountErrors;
     Console.WriteLine (s_strTFAbbrev + " : Error Err_8888yyy!  strLoc=="+ strLoc +", exc_general=="+exc_general.ToString());
     }
   if ( iCountErrors == 0 ) {   return true; }
   else {  return false;}
   }
 public void printerr ( String err )

    public static void Main(String[] args)
    {
        bool bResult = false;
        co4830Concat_string_string cbA = new co4830Concat_string_string();

        try {
            bResult = cbA.runTest();
        } catch (Exception exc_main) {
            bResult = false;
            Console.WriteLine(s_strTFAbbrev + " : FAiL! Error Err_9999zzz! Uncaught Exception in main(), exc_main==" + exc_main.ToString());
        }
        if (!bResult)
        {
            Console.WriteLine("Path: " + s_strTFName + s_strTFPath);
            Console.WriteLine(" ");
            Console.WriteLine("FAiL!  " + s_strTFAbbrev);
            Console.WriteLine(" ");
        }
        if (bResult)
        {
            Environment.ExitCode = 0;
        }
        else
        {
            Environment.ExitCode = 11;
        }
    }