Message Handler in Page Testing

ta5

Hi

I’m doing some tests with page testing. Nice feature, but there is a lot to consider

For the moment I have two questions. First have a look at the scenario :

OnRun()
Code;

[Test] Code()
// Opens a blank customer card test page. 
Customerpage.OPENNEW;
Customerpage."No.".SETVALUE('1234');

MESSAGE('A first message');
MESSAGE('A second message');

Customerpage.CLOSE;

[MessageHandler] FirstMsgHandler(_Msg : Text[1024])
IF _Msg <> 'A first message' THEN BEGIN
 ERROR('Unexpected msg in FirstMsgHandler');
END;

[MessageHandler] SecondMsgHandler(_Msg : Text[1024])
IF _Msg <> 'A second message' THEN BEGIN
 ERROR('Unexpected msg in SecondMsgHandler');
END;

Explanations to the above code:

- Codeunit is defined as a testing codeunit
- The OnRun trigger calls test function "code"
- Function „code“, property "HandlerFunctions" has the value of the 2 functions "FirstMsgHandler" and "SecondMsgHandler"


So now the questions:

Question 1:
Test fails, because FirstMsgHandler throws an error because of wrong text. How to fix? Can one test function properly handle more than 1 message? Or should the MessageHandler handle more than 1 text?

Question 2:
If in function code „MESSAGE('A second message')" is deactivated, I get an error which says „The following UI handlers were not executed: SecondMsgHandler“. Obviously I don’t understand how and when the message handlers are triggered and how the messages are tied to a specific handler if more than one handler is present..... Maybe some of you knows more about it.

Thx in advance
Thomas

beran

I can answer your second questions fast. You can only have one handler of each type. That is a limitation in the implementation.

ta5

Hi Beran
Thanks for your help. Given to the assumption, that we don't want to change existing object code, is there a workaround?
Thanks in advance.
Thomas

Maria-S

Hi Ta5,

Question 1:
Test fails, because FirstMsgHandler throws an error because of wrong text. How to fix? Can one test function properly handle more than 1 message? Or should the MessageHandler handle more than 1 text?

The first messagehandler will catch both messages. You can use enqueue/dequeue to identify the text of the expected message, something like this:

LibraryVariableStorage.Enqueue('A first message');
MESSAGE('A first message');

LibraryVariableStorage.Enqueue('A second message');
MESSAGE('A second message');

And then in the messagehandler you can do like
LibraryVariableStorage.Dequeue(TheMessage);
IF _Msg <> TheMessage THEN BEGIN
ERROR('Unexpected msg in MsgHandler');