abap-unit-testinglisted

# ABAP Unit Testing Guide for writing effective ABAP Unit tests including test class setup, assertions, test doubles, mocking frameworks, and test environments for CDS, SQL, and RAP. ## Workflow 1. **Determine the testing goal**: - Testing business logic in a class method - Testing a CDS view entity - Testing a RAP BO behavior implementation - Testing database-dependent logic with SQL test doubles - Setting up test doubles for external dependencies 2. **Choose the right approach**: - Direct unit test for pure logic (no dependencies) - Constructor/setter injection for mockable dependencies - CDS test environment for CDS view tests - OSQL test environment for SQL-dependent code - RAP BO test doubles for RAP behavior tests 3. **Follow the AAA pattern**: Arrange → Act → Assert 4. **Ensure test isolation**: Tests must not depend on persistent data or external systems ## Test Class Fundamentals ### Test Class Definition ```abap "! Test class for ZCL_MY_CLASS CLASS ltc_my_class DEFINITION FINAL FOR TESTING DURATION SHORT RISK LEVEL HARMLESS. PRIVATE SECTION. DATA cut TYPE REF TO zcl_my_class. "Class Under Test CLASS-METHODS class_setup. "Once before all tests CLASS-METHODS class_teardown. "Once after all tests METHODS setup. "Before each test METHODS teardown. "After each test METHODS test_calculate_total FOR TESTING. METHODS test_validate_input FOR TESTING. METHODS test_emp