How To Fix CDS_UNIT_MESSAGE105 - Creation of CDS test environment is possible only once per test class.

SAP Error Message - Details

• Message type: E = Error

• Message class: CDS_UNIT_MESSAGE - Message Class

• Message number: 105

• Message text: Creation of CDS test environment is possible only once per test class.

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message CDS_UNIT_MESSAGE105 - Creation of CDS test environment is possible only once per test class. ?

  The SAP error message CDS_UNIT_MESSAGE105 indicates that the creation of a Core Data Services (CDS) test environment is limited to a single instance per test class. This error typically arises when you attempt to create a test environment for a CDS view or a related test class more than once.
  Cause:
  The primary cause of this error is that the test environment for a specific test class has already been created. In SAP, when you run unit tests for CDS views, the framework allows the creation of a test environment only once per test class to ensure consistency and avoid conflicts.
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Check Existing Test Environment: Verify if a test environment has already been created for the test class you are working with. You can do this by checking the test logs or the test class implementation.
  
  
  Reuse the Existing Environment: If a test environment already exists, you should reuse it instead of trying to create a new one. Modify your test cases to work with the existing environment.
  
  
  Create a New Test Class: If you need to run tests that require a fresh environment, consider creating a new test class. This will allow you to create a new test environment without conflicting with the existing one.
  
  
  Clean Up: If you are in a development environment and can afford to reset the state, you might consider cleaning up the existing test environment. However, this is generally not recommended in production or shared environments.
  
  
  Review Documentation: Check the SAP documentation for any specific guidelines or best practices related to unit testing of CDS views. This can provide additional insights into managing test environments effectively.
  
  
  Related Information:
  
  Unit Testing in SAP: Familiarize yourself with the unit testing framework in SAP, especially how it handles test environments for CDS views.
  CDS Views: Understand the structure and behavior of CDS views, as well as how they interact with the ABAP environment.
  SAP Notes: Look for any relevant SAP Notes that might address this error or provide additional context or updates regarding unit testing in CDS.
  
  By following these steps, you should be able to resolve the error and effectively manage your CDS test environments.