Regression test suite reduction for cloud systems

A system for validating that a configuration of a cloud system meets requirements, using a reduced test suite selected from a test suite comprising processing circuits and a memory, the memory containing instructions executable by the processing circuits whereby the system is operative to perform operations comprising:

• classifying, using the memory and the processing circuits, the requirements and service instances realizing the requirements composing the cloud system;
• applying, using the memory and the processing circuits, test suite reduction rules to the test suite, using the classified requirements and service instances, to obtain the reduced test suite;
• applying, using the memory and the processing circuits, the reduced test suite to the cloud system configured with the configuration, thereby validating that the configuration of the cloud system meets the requirements;
• removing an applicability link between the service instance and a test case which realizes a requirement if the requirement is directly or indirectly impacted, the requirement is environment dependent, and there is an entry in a history consisting of a test case, a requirement, and a set of configuration parameters identical to the set of configuration parameters that are associated with the service instance and that impacts the requirement;
• and
• causing signaling between hardware nodes and radio units via the memory and the processing circuitry, wherein the step of classifying the service instances further comprises classifying the service instances among:
• a service instance directly impacted by a change, a service instance indirectly impacted by the change and a service instance not impacted by the change, wherein classifying the service instance is done using an applicability matrix which maps test cases to service instances to which the test cases are applicable and using a requirement-service matrix which maps every requirement to the service instance realizing the requirement.

A non-transitory computer readable media having stored thereon instructions for validating that a configuration of a cloud system meets requirements, using a reduced test suite selected from a test suite, the instructions comprising:

• classifying the requirements and service instances realizing the requirements composing the cloud system;
• applying test suite reduction rules to the test suite, using the classified requirements and service instances, to obtain the reduced test suite;
• and
• applying the reduced test suite to the cloud system configured with the configuration, thereby validating that the configuration of the cloud system meets the requirements and causing signaling between hardware nodes and radio units via a memory and a processing circuitry;
• removing an applicability link between the service instance and a test case which realizes a requirement if the requirement is directly or indirectly impacted, the requirement is environment dependent, and there is an entry in a history consisting of a test case, a requirement, and a set of configuration parameters identical to the set of configuration parameters that are associated with the service instance and that impacts the requirement;
• and
• causing signaling between hardware nodes and radio units via the memory and the processing circuitry, wherein the step of classifying the service instances further comprises classifying the service instances among:
• a service instance directly impacted by a change, a service instance indirectly impacted by the change and a service instance not impacted by the change, wherein classifying the service instance is done using an applicability matrix which maps test cases to service instances to which the test cases are applicable and using a requirement-service matrix which maps every requirement to the service instance realizing the requirement.