Behavior Driven Development – an Understandable Way of Testing
Behavior-driven development is an approach to software development, which has appeared from the test-driven development approach. The main peculiarity of it is the simple language, far from those complicated technical terms. The shared language of the BDD helps to improve communication among technical workers, managers, and stakeholders. A shared understanding of the requirements between the development and business team helps to guide the development process, increase flow and decrease rework. In fact, the system is so simple, that even a person without an IT education could understand what is this about.
Both behavior-driven development and test-driven development are based on the tests, written ahead of the code. However, in BDD tests are based on the expected behavior of the system and the user. In this system, developer, tester and customer are working together at the automated system, able to run the acceptance tests according to the given data, and validate that the new behavior is always supported by the system.
What Is Behavior Driven Development: Features of the Approach
In behavior-driven development, a feature is a part of the code – it is the desired way for the product to function, and it often includes multiple behaviors. These features, as well as the other parts of the code, are written in simple common language. The desired behavior is described as a story with 3 main variables:
- As a… – it defines the person who acts;
- I want…– the desired action of the product;
- So that… – the desired outcome from the action.
The testers now can develop a scenario, based on this story. Most of the frameworks use common behavior driven development example template:
- Given – the context or story;
- When – the variable, which appears when something happens;
- Then – the desirable reaction of the product and outcome.
BDD is popular because it is a way to improve communication between the programmers, testers, and product owners. And the simplicity of the language results in the short learning curve as well. As a non-technical by nature approach, it can reach a wider audience.
However, this approach needs a strong knowledge of the test-driven development and the sufficient technical skills of the programmers. And it will work only if you have properly worked out requirements.
Behavior Driven Development Framework: Which to Choose
The choice of the behavior driven development framework depends on the peculiarities and needs of the project you are going to create. There are many unit-test frameworks, based on the coding languages.
For the behavior driven development C# programmers to use:
- Catch – a modern, header-only framework for unit-tests; works for TDD and BDD; simple and laconic, yet has all the important features.
- CBehave – a framework, inspired by Cucumber; uses “feature+scenario” structure and “given-when-then” template for describing the scenario of the behavior; supports mock.
Behavior-driven development Python frameworks are:
- Behave – backed up by Python code; for the tests uses the information written in the form of the natural language/
- Lettuce – simple Cucumber-based tool, aiming the most common tasks of the BDD.
Frameworks for the behavior driven development PHP:
- Behat – an open-source framework for PHP 5.3+; is focused on continuous communication and test-automation.
- Codeception – in this tool all the tests are written in a descriptive manner and saved in PHP DSL files.
- Jasmine – independent of the other JS frameworks; does not require a DOM; is loved for the clear syntax, which is easy to write and read.
- Mocha – has a command line program, built-in in the browser; allows testing in the server and client side environments.
Behavior Driven Developer Salary in Different Countries
BDD developers and testers are needed in many companies around the world. And, of course, they can be hired on outsourcing or remotely. You can choose the most cost-saving option, comparing BDD salaries in various countries. The average annual salary for the tester is the following:
- US – $101,670 per year
- Canada – $38,486 per year
- Germany – $45,653 per year
- Switzerland – $82,176 per year
- Ukraine – $14,563 per year
Thanks to the lower cost of software development and the high quality of the services, Ukraine is one of the most popular outsourcing destinations in Europe. You will also find a huge pool of talents here so it will be no problem to choose the one, who perfectly matches your requirements.
Find Your Behavior Driven Development Experts at Mobilunity
Mobilunity is a group of passionate developers, testers, designers and managers, who are always happy to meet a new challenge and create something incredible. We use cutting-edge technologies to complete our projects and achieve the best results.
Many companies from all over the world are cooperating with Mobilunity because here they get:
- high-quality clear code – we write something easy to maintain, improve and support;
- attractive and user-friendly design – the clients will be pleased to use your software;
- qualified programmers – here you will find experts in different coding languages, creative designers, attentive testers;
- effective management – we have project-managers, ready to lead the project for your;
- quick work – your task will be completed in the shortest possible time;
- clear pricing – you will not find any additional or hidden fees, the pricing doesn’t change during the work;
- comfortable location – if you would like to visit us, Kyiv is in a couple of hours of flight.