How To Fix ABAP_TESTDOUBLE002 - &4 Method &1 was expected to be called &2 times, but was called &3 times

SAP Error Message - Details

• Message type: E = Error

• Message class: ABAP_TESTDOUBLE -

• Message number: 002

• Message text: &4 Method &1 was expected to be called &2 times, but was called &3 times

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message ABAP_TESTDOUBLE002 - &4 Method &1 was expected to be called &2 times, but was called &3 times ?

  The SAP error message ABAP_TESTDOUBLE002 indicates a discrepancy in the expected number of method calls in a unit test when using test doubles (mocks or stubs) in ABAP. Specifically, the message states that a method was expected to be called a certain number of times, but it was called a different number of times. 
  Cause
  This error typically arises in the context of unit testing when:
  
  A method in a class is mocked or stubbed, and the test case specifies an expectation for how many times that method should be invoked.
  The actual implementation of the code being tested does not meet that expectation, leading to a mismatch between the expected and actual call counts.
  
  Solution
  To resolve this error, you can take the following steps:
  
  
  Review the Test Case: Check the unit test where the method is being mocked. Ensure that the expected call count is correctly specified based on the logic of the code being tested.
  
  
  Check the Implementation: Look at the implementation of the method being tested. Verify that the method is being called the expected number of times. If the logic has changed or if there are conditions that affect the call count, you may need to adjust your test case accordingly.
  
  
  Adjust Expectations: If the method is indeed called a different number of times due to changes in the code or logic, update the expected call count in your test case to match the actual behavior.
  
  
  Debugging: If you are unsure why the method is not being called the expected number of times, consider adding debugging statements or using breakpoints to trace the execution flow and understand how many times the method is actually being invoked.
  
  
  Refactor Code: If the method is not being called as expected due to a design issue, consider refactoring the code to ensure that the method is invoked correctly.
  
  
  Related Information
  
  Unit Testing in ABAP: Familiarize yourself with the principles of unit testing in ABAP, including the use of test doubles, mocks, and stubs.
  ABAP Test Double Framework: Understand how to use the ABAP Test Double Framework effectively, including how to set up expectations for method calls.
  Documentation: Refer to the official SAP documentation for unit testing in ABAP for more detailed guidance on writing and troubleshooting unit tests.
  
  By following these steps, you should be able to identify the cause of the discrepancy and resolve the ABAP_TESTDOUBLE002 error in your unit tests.