Hypermedia REST rakenduste automatiseeritud testimine
Date
2016
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Abstract
Testimine on oluline osa tarkvaraarenduse elutsüklis ja testidel põhinev arendamine on üks peamistest praktikatest Agile metoodikas. Tihti keskenduvad programmeerijad RESTful rakenduse loomise protsessis äriloogika testimisele ja unustavad kontrollida protokolli, mis teostab REST interaktsioone. Selles kontekstis pakutakse välja tööriist, mis automatiseerib testide genereerimist ja teostab interaktsioone RESTful rakendusega. Tööriist võtab sisendiks kasutuslood, mis on koostatud Gherkini kitsendatud versiooniga. See on domeenispetsiifiline keel käitumispõhiseks arenduseks. Kasutuslood, mis on kirjutatud selles Gherkini variandis, hõlmavad REST rakenduse poolt nõutud interaktsioone sellisel viisil, et neist on võimalik genereerida teste. Veelgi enam, tööriist genereerib samalt kasutusloolt täisfunktsionaalse pseudoteostuse.\n\rProgrammeerijad saavad kasutada neid pseudoteostusi kliendipoole arendamiseks, vajamata REST rakenduse tegelikku teostust. Käesolev töö tutvustab tööriista kasutust ja disainiprintsiipe ning esitab näite selle kasutamisest.
Testing is one essential part of the software development lifecycle and Test Driven Development is one of the main practices in agile methodology. During the development of a RESTful web application, developers oftentimes focus only in testing the business logic and neglect testing the protocol implementing REST interactions. In this context, we propose a tool to automate the generation of test cases that exercise the interactions required by a RESTful application. The tool takes as input user stories written in restricted version of Gherkin, a widely use domain specific language for behaviour driven development. User stories written in this variant of Gherkin capture the essence of the interactions required by a REST application in a way that it is possible to derive test cases from them. Moreover, the tool derives fully functional mock implementations from the same input user story. Such mock implementations can be then used by programmers to develop the client side without requiring the actual implementation of the REST application. This document introduces the design principles and implementation of the tool and presents a study case showcasing its use.
Testing is one essential part of the software development lifecycle and Test Driven Development is one of the main practices in agile methodology. During the development of a RESTful web application, developers oftentimes focus only in testing the business logic and neglect testing the protocol implementing REST interactions. In this context, we propose a tool to automate the generation of test cases that exercise the interactions required by a RESTful application. The tool takes as input user stories written in restricted version of Gherkin, a widely use domain specific language for behaviour driven development. User stories written in this variant of Gherkin capture the essence of the interactions required by a REST application in a way that it is possible to derive test cases from them. Moreover, the tool derives fully functional mock implementations from the same input user story. Such mock implementations can be then used by programmers to develop the client side without requiring the actual implementation of the REST application. This document introduces the design principles and implementation of the tool and presents a study case showcasing its use.