JavaScript is a popular programming language that is also error-prone due to its
asynchronous, dynamic, and loosely-typed nature. In recent years, numerous techniques …

Mutation testing realizes the idea of using artificial defects to support testing activities.
Mutation is typically used as a way to evaluate the adequacy of test suites, to guide the …

Most fault localization techniques take as input a faulty program, and produce as output a
ranked list of suspicious code locations at which the program may be defective. When …

Context: Identifying the root cause of a software bug and fixing it is challenging. One reason
for this is that many bugs are not reproducible during bug fixing. Objective: We aim to …

When working on techniques to address the wide-spread problem of software bugs, one
often faces the need for a large number of realistic bugs in real-world programs. Such bugs …

Various proxy metrics for test quality have been defined in order to guide developers when
writing tests. Code coverage is particularly well established in practice, even though the …

Mutation faults are the core of mutation testing and have been widely used in many other
software testing and debugging tasks. Hence, constructing high-quality mutation faults is …

Testing deep learning (DL) software is crucial and challenging. Recent approaches use
differential testing to cross-check pairs of implementations of the same functionality across …

Static analysis tools attempt to detect faults in code without executing it. Understanding the
strengths and weaknesses of such tools, and performing direct comparisons of their ef …

We introduce µBert, a mutation testing tool that uses a pre-trained language model
(CodeBERT) to generate mutants. This is done by masking a token from the expression …