Author

Vu Nguyen

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Preprint Aug 2026

DualMine: Static-Dynamic REST API Constraint Discovery with Dual Validation

REST API constraints capture semantic properties of API responses and are essential for automated test oracle generation, but they are difficult to discover reliably. Static approaches infer constraints from API specifications and documentation, but their results may be affected by incomplete, ambiguous, or outdated sp...

Tuong Nguyen, Huy Nguyen, J. C. A. Valenzuela et al. · 0 citations

Preprint Aug 2026

HxAgent: Iterative Agent Planning for End-to-End Web Application Testing

HxAgent is introduced, an iterative LLM-based planning agent with a proactive correction strategy that achieves 97.4% Exact-Match accuracy on MiniWoB++, comparable to the best baselines without human demonstrations and surpassing the recent WALT by 10.5%.

Tuong Nguyen, Duy Cao, Viet Nguyen et al. · 0 citations

Preprint Aug 2026

REST API Testing with Verified LLM-Inferred Dependencies and Response-Driven Refinement

APIPilot first derives candidate producer-consumer dependencies from OpenAPI specifications using structural heuristics and LLM-based semantic reasoning and validates them through concrete API executions before using them for test generation, outperforming both LLM-based and traditional REST API testing baselines.

T. Nguyen, Thanh Nguyen, H. Nguyễn et al. · 0 citations