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arXiv · 2409.08708

Towards Modified Condition/Decision Coverage of Rust

Wanja Zaeske·Pietro Albini·Florian Gilcher·Umut Durak
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Abstract

Testing is an essential tool to assure software, especially so in safety-critical applications. To quantify how thoroughly a software item has been tested, a test coverage metric is required. Maybe the strictest such metric known in the safety critical systems is Modified Condition/Decision Coverage (MC/DC), which DO-178C prescribes for the highest software assurance level in aviation. In the past, ambiguities in the interpretation of MC/DC have been resolved already, i. e. in CAST-10. However, some central features of the Rust programming language necessitate further clarification. This work investigates aforementioned features, in particular pattern matching, providing a consistent view on how to apply MC/DC to Rust. Hence, this paper informs the implementation of Rust MC/DC tools, paving the road towards Rust in high-assurance applications.

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Wanja Zaeske, Pietro Albini, Florian Gilcher, Umut Durak. 2024-09-13. Towards Modified Condition/Decision Coverage of Rust. https://doi.org/10.2514/1.i011558

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