ICST 2026
Mon 18 - Fri 22 May 2026 Daejeon, South Korea
Wed 20 May 2026 15:55 - 16:20 at Room 103 - Test Prioritization & Build Optimization Chair(s): Na Meng

As software systems evolve, large test suites increasingly delay developer feedback in Continuous Integration and Delivery (CI/CD). Test Case Selection and Prioritization (TCSP) mitigates this issue, and recent evidence shows that simple heuristics, such as prioritizing recently failed or fast-running tests, often outperform sophisticated machine learning (ML) approaches, which incur high training costs and suffer from distribution shift. However, these simple heuristics remain rigid and fail to leverage the rich historical data continuously generated by the CI/CD pipelines. This paper introduces DANTE, a data-driven, yet training-free framework that evolves simple TCSP heuristics into a data-driven selection and prioritization strategy. DANTE processes historical signals through a probabilistic stickiness metric that automatically adapts to project-specific failure and fixing patterns, eliminating the need for manual tuning. This history-aware logic is complemented by a lightweight, commit-aware component that captures the relevance between code changes and test artifacts. We evaluated DANTE on the Long-Running Test Suite (LRTS) dataset, focusing on the Java projects, which constitute the vast majority in LRTS (9 out of 10 in total) and comprise more than 21,000 CI builds with multi-hour test suites. The results show that DANTE consistently outperforms state-of-the-art cost-history cognizant heuristics and ML baselines in both test selection and prioritization, while remaining robust to flaky tests.

Wed 20 May

Displayed time zone: Seoul change

15:30 - 17:00
Test Prioritization & Build OptimizationResearch Papers / Industry at Room 103
Chair(s): Na Meng Virginia Tech
15:30
25m
Talk
FALCON: Efficient Test Case Prioritization via Submodular OptimizationDistinguished Paper AwardArtifact ReviewedArtifact Available
Research Papers
Twumasi Mensah-Boateng University of North Texas, Jing Yuan University of North Texas, Hyunsook Do University of North Texas
15:55
25m
Talk
DANTE: Data-Driven Test Case Selection and Prioritization for Long-Running Test SuitesDistinguished Paper AwardArtifact ReviewedArtifact Available
Research Papers
Simone Reale Politecnico di Milano, Elisabeta di Nitto Politecnico di Milano, Luciano Baresi Politecnico di Milano, Massimiliano Di Penta University of Sannio, Italy, Giovanni Quattrocchi Politecnico di Milano
16:20
25m
Talk
How Effectively Do Large Language Models Help with Build Conflict Resolution?
Research Papers
Sheikh Shadab Towqir Virginia Tech, Xiaoyan Zhang Virginia Tech, Todd Mytkowicz Google, Na Meng Virginia Tech
Pre-print
16:45
15m
Talk
Taming the Variants: Multi-Architecture Continuous Testing at Google
Industry
Pre-print