Abstract: A method and apparatus are provided for enhancing operable testing functionality for program code by mutating a code segment in a received program code to generate a mutated code segment, by monitoring execution of a test suite against the mutated code segment to detect a surviving mutation, and by evaluating the surviving mutation against the test suite to identify a first test case to blame for the surviving mutation by analyzing a coverage of the plurality of test cases in the test suite for the surviving mutation to identify one or more test cases from the test suite which cover the surviving mutation and then select the first test case which meets one or more predetermined selection criteria.

Abstract: A library model addition engine adds library models to a library knowledge base by defining a template for a library configuration file that conveys information about each library model, custom inputs and code snippets to facilitate library comparison operations, and education content for the library model, where the library configuration file template may be automatically filled by populating selected data fields in the template with information identifying the library model and a set of custom inputs for the library model, and then passing a set of test cases from the set of custom inputs to an input/output matching engine to evaluate a repository of code snippets and identify a set of functionally similar code snippets for inclusion one or more data fields in the template.

Abstract: In at least one embodiment, a system performs regression testing of software using selected test cases. In at least one embodiment, the system selects the test case for regression testing based on whether the test case correlates with modified code. In at least one embodiment, a test case correlates with the modified code if the test case tests all or a proper subset of the modified code. In at least one embodiment, if a test case does not test any of the modified code, then the test case is not used in the regression testing of the modified code.

Abstract: In at least one embodiment, a system performs regression testing of software using selected test cases. In at least one embodiment, the system selects the test case for regression testing based on whether the test case correlates with modified code. In at least one embodiment, a test case correlates with the modified code if the test case tests all or a proper subset of the modified code. In at least one embodiment, if a test case does not test any of the modified code, then the test case is not used in the regression testing of the modified code.