Facundo Molina

• PhD
• Post-doctoral Researcher at Madrid Institute for Advanced Studies

The effectiveness of a test suite in detecting faults highly depends on the quality of its test oracles. Large Language Models (LLMs) have demonstrated remarkable proficiency in tackling diverse software testing tasks. This paper aims to present a roadmap for future research on the use of LLMs for test oracle automation. We discuss the progress mad...

Metamorphic testing is a valuable technique that helps in dealing with the oracle problem. It involves testing software against specifications of its intended behavior given in terms of so called metamorphic relations , statements that express properties relating different software elements (e.g., different inputs, methods, etc). The effective appl...

The effectiveness of a test suite in detecting faults highly depends on the correctness and completeness of its test oracles. Large Language Models (LLMs) have already demonstrated remarkable proficiency in tackling diverse software testing tasks, such as automated test generation and program repair. This paper aims to enable discussions on the pot...

Bounded exhaustive input generation (BEG) is an effective approach to reveal software faults. However, existing BEG approaches require a precise specification of the valid inputs, i.e., a , that must be provided by the user. Writing s for BEG is challenging and time consuming, and they are seldom available in software. In this paper, we introduce ,...

In this paper, we propose an assertion-based approach to capture software evolution, through the notion of commit-relevant specification. A commit-relevant specification summarises the program properties that have changed as a consequence of a commit (understood as a specific software modification), via two sets of assertions, the delta-added asser...

Specification inference techniques aim at (automatically) inferring a set of assertions that capture the exhibited software behaviour by generating and filtering assertions through dynamic test executions and mutation testing. Although powerful, such techniques are computationally expensive due to a large number of assertions, test cases and mutate...

Expressing class specifications via executable constraints is important for various software engineering tasks such as test generation, bug finding and automated debugging, but developers rarely write them. Techniques that infer specifications from code exist to fill this gap, but they are designed to support specific kinds of assertions and are di...

Software reliability is a primary concern in the construction of software, and thus a fundamental component in the definition of software quality. Analyzing software reliability requires a specification of the intended behavior of the software under analysis, and at the source code level, such specifications typically take the form of assertions. U...

Various tools for program analysis, including run-time assertion checkers and static analyzers such as verification and test generation tools, require formal specifications of the programs being analyzed. Moreover, many of these tools and techniques require such specifications to be written in a particular style, or follow certain patterns, in orde...

Goal-conflict analysis has been widely used as an abstraction for risk analysis in goal-oriented requirements engineering approaches. In this context, where the expected behaviour of the system-to-be is captured in terms of domain properties and goals, identifying combinations of circumstances that may make the goals diverge, i.e., not to be satisf...

In specification-based test generation, sometimes having a formal specification is not sufficient, since the specification may be in a different formalism from that required by the generation approach being used. In this paper, we deal with this problem specifically in the context in which, while having a formal specification in the form of an oper...

Various tools for program analysis, including run-time assertion checkers and static analyzers such as verification and test generation tools, require formal specifications of the programs being analyzed. Moreover, many of these tools and techniques require such specifications to be written in a particular style, or follow certain patterns, in orde...