Ekosystém Ruby se zvláštním zřetelem na testování a používání DSL

The work presents modern and dynamic ecosystem of the Ruby programming language, focusing on the possibilities of extending it by the distribution of custom applications, looking at their testing options and use of DSL for building applications. It also describes how to install Ruby on multiple important operating systems and solution to the problems which the user may encounter. It also aims to walkthrough the reader though application development from start to finish and raise attention to systems and platforms where Ruby can be used. First introduces readers with the Ruby ecosystem in the form of periodicals, organizations and places where people are dealing with Ruby meet, discuss and solve problems. After explaining how to install Ruby on Linux, Windows, OS X and BSD it discusses the basic building blocks such of Ruby extensibility as packaging system and important libraries. At the end it describes tools for testing applications and illustrates explained concepts in the examples. In the last it maps latest and soon future development of Ruby as a platform. The practical outcome of work is a framework for the development of text games using internal DSL and application that demonstrates the possibilities of its use. Also included is a program that uses existing libraries and demonstrates a commandline applications.