<scp>HybridCISave</scp> : A Combined Build and Test Selection Approach in Continuous Integration

Continuous Integration (CI) is a popular practice in modern software engineering. Unfortunately, it also high-cost practice—Google and Mozilla estimate their CI systems millions of dollars. To reduce the computational cost CI, researchers developed approaches to selectively execute builds or tests that are likely fail (and skip those pass). In this article, we present novel hybrid technique ( HybridCISave ) improve on limitations existing techniques: provide higher savings safety. savings, combines techniques predict executions both full predicted pass partial ones (only them safety, predictions multiple obtain stronger certainty before decides build test. We evaluated by comparing its effectiveness with selection over 100 projects found provided at highest each design decision skipping increased combining test made safer.