topic Re: Testing private methods: Declaring a local test friend in Application Development and Automation Discussions

Testing private methods: Declaring a local test friend

Martin_Bschen — Tue, 12 Sep 2017 20:02:49 GMT

I try to test the private methods of a class and therefor I declare a local test friend following this scheme:

class lcl_test definition deferred.
class zcl_testee definition local friends lcl_test.
...
class lcl_test definition for testing ...
...

This is been discussed in this wiki article or in this blog entry.

But all I get is the syntax error "The statement CLASS is unexpected".

What is wrong here?

My complete code:

CLASS lcl_test DEFINITION DEFERRED.
CLASS zcl_testee DEFINITION
 PUBLIC FINAL CREATE PUBLIC .
  PUBLIC SECTION.
  PROTECTED SECTION.
  PRIVATE SECTION.
ENDCLASS.

CLASS zcl_testee IMPLEMENTATION.
ENDCLASS.

CLASS lcl_test DEFINITION.
ENDCLASS.

CLASS lcl_test IMPLEMENTATION.
ENDCLASS.

Re: Testing private methods: Declaring a local test friend

pokrakam — Tue, 12 Sep 2017 21:33:00 GMT

Where are you writing the code, report or class?

If report, then your class cannot be public. If it's in a class then the unit test class must be in the local test classes section, tab at the bottom of your editor if you use Eclipse, somewhere in the menu if you use SE24/80.

The all the code in your first block goes in the unit test section. The design here is that it doesn't even get compiled in a productive system, hence the strong separation.

Re: Testing private methods: Declaring a local test friend

retired_member — Wed, 13 Sep 2017 05:40:31 GMT

Take my classes of package SABAP_DEMOS_CAR_RENTAL_APPL as an example, e.g. CL_DEMO_CR_RESERVATION_CATA. Check the includes where the test classes reside and where they are declared DEFERRED and as friends (local definitions and implementations).

Re: Testing private methods: Declaring a local test friend

Martin_Bschen — Wed, 13 Sep 2017 07:42:44 GMT

That solved my question.

What was missing was the following code in the "Local Types"-Include

CLASS lcl_test DEFINITION DEFERRED.
CLASS zcl_testee DEFINITION LOCAL FRIENDS lcl_test

The class zcl_testee has a second definition in the "Global Class"-Include, without the LOCAL FRIENDS keyword.

Re: Testing private methods: Declaring a local test friend

SuhaSaha — Wed, 13 Sep 2017 11:15:15 GMT

Is the behavior related to the ABAP version?

I have been defining the test class(es) local friends in the "Test Classes" include(CCAU). Never got an error in ABAP 740 & now on 750 too!

Re: Testing private methods: Declaring a local test friend

retired_member — Wed, 13 Sep 2017 12:38:01 GMT

Placing the two lines in CCAU works for me in 7.40, 7.50 and higher.

But it is better style to place local declarations in CCDEF/CCIMP.

Re: Testing private methods: Declaring a local test friend

SuhaSaha — Wed, 13 Sep 2017 15:12:06 GMT

Thanks for the clarification! Going forward i'll stick to your recommendation.

Re: Testing private methods: Declaring a local test friend

sudantha — Fri, 03 Feb 2023 14:32:54 GMT

Thank you ! , This is really helpful , Good Referance for Unit Testing