[Bug] in method cl_cds_test_environment=>create_for_multiple_cds

[burghard]

<a href="/storage/temp/2178746-reproducer.txt" data-attachment="2178746">reproducer.txt</a>

There are two methods in cl_cds_test_environment for creating cds test doubles.

cl_cds_test_environment=>create<br>cl_cds_test_environment=>create_for_multiple_cds 

The second one does not work correctly. The simplest way to see is with this code:

cl_cds_test_environment=>create_for_multiple_cds( i_for_entities = VALUE #( ( i_for_entity = 'I_PRODUCT' ) ) ).<br>cl_osql_test_environment=>create( i_dependency_list = VALUE #( ( 'MARA' ) ) ).

The second call crashes, because the first call executes incorrectly. If we use the create method instead of the create_for_multiple_cds like below, the problem does not occur:

cl_cds_test_environment=>create(  i_for_entity  = 'I_PRODUCT' ).<br>cl_osql_test_environment=>create( i_dependency_list = VALUE #( ( 'MARA' ) ) ).

The difference between the multiple create and the single create method is that the former incorrectly places MARA and MAW1 in this global table:

cl_osql_replace=>replacement_tab

which causes the subsequent attempt to create an osql double for MARA to fail.

By comparing the code of the two methods

cl_cds_test_environment=>create<br>cl_cds_test_environment=>create_for_multiple_cds 

we can see that an if check was forgotten in the second one (see attachment side-by-side.png)

To correct the bug, SAP needs to add the "IF test_associations EQ 'X'." line to method cl_cds_test_environment=>create_mul_cds_test_instance before line 4794.

In the attached reproducer.txt you find a test class that allows you to reproduce the bug and also gives some more insight in the problem (incorrect values in cl_osql_replace=>replacement_tab).

Best regards,

Burghard von Karger

External Consultant at Hugo Boss

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