An indication of a change to at least one source file associated with a software build is received via a processor. A set of test levels of a level-based testing suite are sequentially processed, where each test level subsequently processed includes tests with decreasing qualitative testing information relative to tests associated with previously-processed test levels. For each processed test level, at least one test is selected that tests the change to the at least one source file associated with the software build, test coverage relative to a target risk level for the software build is determined for each selected test, and test selection is terminated upon determining that the test coverage for the selected tests at least meets the target risk level for the software build.