USLTG: Test Case Automatic Generation by Transforming Use Cases

Abstract

This paper proposes a transformation-based method to automatically generate functional test cases from use cases named USLTG (Use case Specification Language (USL)-based Test Generation). We first focus on developing a modeling language named Test Case Specification Language (TCSL) in order to express test cases. Test cases in TCSL can contain detailed information including test steps, test objects within steps, actions of test objects, and test data. Such information is often ignored in currently available test case specifications. We then aim to generate test cases in a TCSL model by a transformation from use cases that are represented by a USL. The USLTG transformation includes three main steps in generating (1) scenarios, (2) test data, and (3) a TCSL model. Within our transformation, the OCL solver is employed in order to build system snapshots as the part of test cases and to identify other test data. We applied our method to two case studies and evaluated our method by comparing it with other recent works.

Seamless transformation from use case to sequence diagrams

“…Memon et al (2019) create a method for moving data from UML class diagrams to another model with a focus on idea traceability. Additionally, Hue et al (2019) and Hue, Hanh & Binh (2018) offer a technique for automatically and methodically generating test cases from developed use cases. Yoshino & Matsuura (2020) offer a method for identifying the specifications that must be included in computer programs in order for them to automatically transfer data from an activity diagram and produce a sequence diagram.…”

Extracting TFM Core Elements From Use Case Scenarios by Processing Structure and Text in Natural Language

“…Some approaches for analysis scenarios and data in textual use cases use NLP. The purpose is scenarios for test cases [31]- [34] and behavioural models. Use cases itself can be transformed to test case scenarios.…”

“…Use cases itself can be transformed to test case scenarios. For example, generation of system test cases from uses cases "in the use case modelling language USL" [31], [34]. In this approach the authors transform a use case to test cases using predefined mappings between their metamodels and domain concepts of the system captures in an UML class diagram.…”