Method for Performing a Regression Test after Modifying Source Code File

A method for performing a regression test comprises: the creation of a map of at least one source file to a test case by storing a relationship between the files which was used to verify the source file in the past; assembling exactly the test cases mapped with the modified source file into a test case scenario; and regression testing based in the scenario. Preferably, mappings may provide an unambiguous correlation between the test case and source file, where all test cases may have been previously used for testing the source file. The mapping may be updated (such as deletion of defunct relationships) before initiating the test. The maps may be stored in a database, and provided to a source control management system and regression test entity. The test case scenario assembly may require a valid problem number. Also included is a claim to a system for performing the method.