What is test seam in SAP BC-ABA - ABAP Runtime Environment?

SAP Term: test seam

• Component: BC-ABA

• Component Name: ABAP Runtime Environment

• Description: Seam inserted between the statements SEAM and ENDSEAM in production sour ce code and which can be replaced by an injection when module tests are run.

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• Key Concepts: 
  Test seam is a feature of the ABAP Runtime Environment (BC-ABA) that allows developers to insert code into existing programs without changing the original source code. This allows for testing and debugging of programs without having to modify the original code. 
  
  How to use it: 
  Test seams can be used to insert code into existing programs in order to test and debug them. This can be done by creating a new program that contains the code to be inserted, and then using the ABAP Runtime Environment's test seam feature to insert the code into the existing program. 
  
  Tips & Tricks: 
  When using test seams, it is important to ensure that the code being inserted does not interfere with the existing program's functionality. Additionally, it is important to ensure that any changes made to the program are properly documented so that they can be easily tracked and reverted if necessary. 
  
  Related Information: 
  For more information on test seams and how to use them, please refer to SAP's official documentation on the ABAP Runtime Environment (BC-ABA). Additionally, there are many online tutorials and resources available that provide further information on how to use test seams.