Test-Driven Development is a process that relies on the repetition of very short development cycle. It is based on the test-first concept of Extreme Programming (XP) that encourages simple design with high level of confidence.
The procedure of doing TDD is following:
In this article we’ll go through the exercise of writing a method that will write string content to the specified file. There will be an option to specify whether we should overwrite an existing file. In addition, directories should be created if they do not already exist.
Programming language is Scala and testing framework that will be used is Specs2. In the spirit of unit testing, instead of interactions with the file system we’ll use mocks with Mockito (already included in Specs2). All the code will be done using Test-Driven Development (TDD).
This article is based on an existing code done for the open source application BDD Assistant located in the TechnologyConversationsBdd repository.
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I’ve been working with BDD for years and felt that it needed an application that would facilitate the Behaviour-driven development work-flow. It would need to be made in a away that anyone can use it. By anyone I mean people with or without technical skills. Coders, testers, analysts, managers, business, etc. In that spirit, I started working on BDD Assistant. It is an open source application that can be used to create, manage and run BDD stories.
Now I feel that it is finally ready to go public. The application is far from being finished but there is enough done for the community to see what it’s all about. More information can be found in the BDD Assistant site. Latest release can be downloaded from our GitHub repo. Live demo (with some features disabled due to hosting limitations) can be seen from the BDD Assistant demo.
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Technology Conversations 