Author

Andreas Zeller

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#small language model Book Open access Oct 2026

Can Open-Weight LLMs Predict Test Outcomes from Traces? A Cross-Subject Boundary Study on Tests4Py

Determining whether a test execution should pass or fail remains a core obstacle to end-to-end test automation. Recent work has focused mainly on generating assertions from source context, leav- ing open how much pass/fail signal can be recovered directly from runtime behavior, especially under subject transfer. We pre...

Giuliano Ricardo Rasper, T. Mammadov, Marius Smytzek et al. · 0 citations

Book Open access Jul 2026

Can LLMs Really Reason about Code? Studying How Well LLMs Understand the Relation between Input, Code, and Output

In this work, the capacity of LLMs to reason about the semantics of code is examined—specifically, their ability to relate code, its inputs, and its outputs to each other, and four datasets are constructed to evaluate diverse program-understanding capabilities.

Norman Becker, T. Mammadov, Andreas Zeller · AIware · 2 citations

Book Open access Jul 2026

Generating Test Inputs and Interactions with the Fandango Fuzzer: How to Test Complex Systems Automatically and Exhaustively

This tutorial introduces test generation with fandango, a modern specification-based generator of test inputs and interactions that produces inputs that are syntactically and semantically correct, and systematically cover the input space of the program under test.

Jose Antonio Zamudio Amaya, Alexander Liggesmeyer, Marius Smytzek et al. · SIGSOFT FSE Companion · 0 citations