ABAP UNIT

Module Objectives

• Purpose of ABAP Unit
• Creating Unit Tests
• Fixture Methods
• ABAP Unit Test Class Wizard
• ABAP Unit Test Classes in ADT

Purpose of ABAP Unit

• ABAP Unit is part of the test landscape for ABAP programs. ABAP Unit lets you implement unit tests.

• ABAP unit tests are methods of specially designated ABAP classes. Test methods work as scripts, with which code under test can be run, and with which the results of a test can be evaluated.

• ABAP unit lets you test the code at unit level, independent of the entire solution.

Creating Unit Tests

ABAP unit tests are implemented in the form of test methods in local test classes in any ABAP programs. The expected results are checked with static methods of help class CL_ABAP_UNIT_ASSERT or CL_AUNIT_ASSERT.

Unit test

Test Properties

Risk Level

• Harmless – the test does not affect any existing processes and/or Database data.
• Dangerous– the test will change Database or Persistent Data
• Critical – the test will affect customizing data

Duration

• Short – test run is expected to take less than a minute
• Medium - test run is expected to take up to 10 minutes
• Long - test run is expected to run for more than 10 minutes

Methods of CL_AUNIT_ASSERT:

Methods of CL_AUNIT_ASSERT

Fixture Methods

• Test fixture is the test configuration like test data or test objects. This data would be used within the test methods.

• Fixture methods would be executed before the actual test method gets executed. So when the test is getting performed, the test data or test objects setup in fixture method can be used.

• In ABAP, the test fixture is achieved using predefined methods. These method would be called automatically by ABAP framework if they exist in the test class.

• SETUP()

This method is triggered before the execution of a test method

• TEARDOWN()

This method is triggered after the execution of a test method

• CLASS_SETUP()

This method is triggered before the execution of ALL test methods

• CLASS_TEARDOWN()

This method is triggered after the execution of ALL test methods

ABAP Unit Test Class Wizard

We can use the ABAP Unit Test Class wizard to generate a local ABAP class for unit testing.
Note the following about the wizard:

• It is usable only with ABAP class pools or function pools. For other types of programs (such as reports) you must create the local ABAP Unit test class manually.

• It generates a basic local test class. You will still need to provide any fixture setup and teardown, adjust the calls to your methods, and adjust the assert conditions in the test methods.

ABAP Unit Test Classes in ADT