In this tutorial, you will learn how to create a unit test for global ABAP class in transaction SE24.
Step 1. To create a unit test for global ABAP class go to transaction SE24 (Class Builder. Put “se24” in the command field and hit Enter:
Step 2. Choose class “ZCL_CALCULATOR“. If you don’t have this class yet you can follow this tutorial. Of course, a unit test can be created for any other customer classes?
Step 3. Click on Change button:
Step 4. Click on Local Test Classes button:
Step 5. First, we will create a unit test for ADD method. You need to put following ABAP code in local test class source file:
[cc lang=”abap”]
CLASS abap_unit_testclass DEFINITION “#AU Duration Short
FOR TESTING. “#AU Risk_Level Harmless
PRIVATE SECTION.
METHODS: check_add FOR TESTING.
ENDCLASS.
CLASS abap_unit_testclass IMPLEMENTATION.
METHOD check_add.
DATA result TYPE int4.
result = zcl_calculator=>add( i_a = 5 i_b = 6 ).
cl_aunit_assert=>assert_equals(
act = result
exp = 11
msg = ‘Error in adding’
).
ENDMETHOD.
ENDCLASS.
[/cc]
Step 6. It should look like this:
Step 7. Add methods that will check other parts of ZCL_CALCULATOR class. The final code should look like this:
[cc lang=”abap”]
CLASS abap_unit_testclass DEFINITION “#AU Duration Short
FOR TESTING. “#AU Risk_Level Harmless
PRIVATE SECTION.
METHODS: check_add FOR TESTING,
check_substract FOR TESTING,
check_multiplicy FOR TESTING,
check_divide FOR TESTING.
ENDCLASS.
CLASS abap_unit_testclass IMPLEMENTATION.
METHOD check_add.
DATA result TYPE int4.
result = zcl_calculator=>add( i_a = 5 i_b = 6 ).
cl_aunit_assert=>assert_equals(
act = result
exp = 11
msg = ‘Error in adding’
).
ENDMETHOD.
METHOD check_substract.
DATA result TYPE int4.
result = zcl_calculator=>substract( i_a = 7 i_b = 5 ).
cl_aunit_assert=>assert_equals(
act = result
exp = 2
msg = ‘Error in substraction’
).
ENDMETHOD.
METHOD check_multiplicy.
DATA result TYPE int4.
result = zcl_calculator=>multiply( i_a = 5 i_b = 6 ).
cl_aunit_assert=>assert_equals(
act = result
exp = 30
msg = ‘Error in multiplication’
).
ENDMETHOD.
METHOD check_divide.
DATA result TYPE int4.
result = zcl_calculator=>divide( i_a = 8 i_b = 2 ).
cl_aunit_assert=>assert_equals(
act = result
exp = 4
msg = ‘Error in dividing’
).
ENDMETHOD.
ENDCLASS.
[/cc]
Step 8. Active Unit Test class using Activate button:
Step 9. Now you can use your unit test class to test ZCL_CALCULATOR. Choose Local Test Class | Execute | Unit Tests from the top menu:
Step 10. If everything went well and all test are passed you should see status on the bottom of screen:
