Behavior Driven Development

Galen is a test framework originally designed for testing layout of web applications but is also a great tool for functional testing. When it comes to testing a responsive layout it works in the following way:

• Open a page in browser
• Resize it to specified size
• Test the layout according to user-defined specs

It uses Selenium for interacting with elements on the page and getting their locations and dimensions. 
Once it sees that something is wrong - Galen reports the error, makes a screenshot and highlights the misbehaving element on it.

Karate enables you to script a sequence of calls to any kind of web-service and assert that the responses are as expected. It makes it really easy to build complex request payloads, traverse data within the responses, and chain data from responses into the next request. Karate's payload validation engine can perform a 'smart compare' of two JSON or XML documents without being affected by white-space or the order in which data-elements actually appear, and you can opt to ignore fields that you choose.

Since Karate is built on top of Cucumber-JVM, you can run tests and generate reports like any standard Java project. But instead of Java - you write tests in a language designed to make dealing with HTTP, JSON or XML - simple.

MiniTest, as the name suggests, is a small and fast unit testing framework. Shipped with Ruby 1.9, MiniTest supports a complete suite of testing capabilities such as TDD, BDD, mocking, and benchmarking. Since ruby 1.9 the ruby standard library has included a testing framework called MiniTest, it is a modern and lightweight replacement for ruby 1.8's Test::Unit framework. MiniTest provides:

•     Unit tests with MiniTest::Unit
•     Specs with MiniTest::Spec
•     mock objects with MiniTest::Mock
•     algorithm performance tests

RSpec is a Behaviour-Driven Development tool for Ruby programmers. BDD is an approach
to software development that combines Test-Driven Development, Domain Driven Design,
and Acceptance Test-Driven Planning. RSpec helps you do the TDD part of that equation,
focusing on the documentation and design aspects of TDD. RSpec is composed of multiple libraries, which are designed to work together, or can be used independently with other testing tools like Cucumber or Minitest.

Freshen is an acceptance testing framework for Python . uses the (mostly) same syntax as Cucumber. Why copy Cucumber? - Because it works and lots of people use it. Why use Nose? - Because it works and lots of people use it and it already does many useful things. No need to spend time in re-implementing coverage, profiling, test discovery, and command like processing again. Freshen supports 30 languages, exactly the same as cucumber, since the "language" file was borrowed from the cucumber project. As long as your .feature files respect the syntax, the person in charge of writing the acceptance tests may write it down.

JBehave is a framework for Behaviour-Driven Development (BDD). BDD is an evolution of test-driven development (TDD) and acceptance-test driven design, and is intended to make these practices more accessible and intuitive to newcomers and experts alike. It shifts the vocabulary from being test-based to behaviour-based, and positions itself as a design philosophy.     

Cucumber is a BDD testing tool and Framework. This means that the “tests” (plain text feature descriptions with scenarios) are typically written before anything else and verified by business analysts, domain experts, etc. non technical stakeholders. The production code is then written outside-in, to make the stories pass. Cucumber itself is written in Ruby, but it can be used to “test” code written in Ruby or other languages including but not limited to Java, C# and Python. Cucumber only requires minimal use of Ruby programming and Ruby is easy, so don’t be afraid even if the code you’re developing in is not Ruby.

Robot Framework is a generic test automation framework for acceptance testing and acceptance test-driven development (ATDD). It has easy-to-use tabular test data syntax and it utilizes the keyword-driven testing approach. Its testing capabilities can be extended by test libraries implemented either with Python or Java, and users can create new higher-level keywords from existing ones using the same syntax that is used for creating test cases.

Robot Framework project is hosted on GitHub where you can find further documentation, source code, and issue tracker. Downloads are hosted at PyPI. The framework has a rich ecosystem around it consisting of various generic test libraries and tools that are developed as separate projects.

Concordion is an open source framework for Java that lets you turn a plain English description of a requirement into an automated test. Concordion is the most flexible tool for creating high-quality living documentation. It is often used with Specification by Example (SbE) and Behavior Driven Development (BDD) processes.

JWebUnit is a Java framework that facilitates creation of acceptance tests for web applications. It evolved from a project where we were using HttpUnit and JUnit to create acceptance tests. As the tests were being written, they were continuously refactored to remove duplication and other bad smells in the test code. JWebUnit is the result of these refactorings. It wraps existing testing frameworks such as HtmlUnit and Selenium with a unified, simple testing interface to allow you to quickly test the correctness of your web applications.

SpecFlow is a pragmatic BDD solution for .NET. It uses the Gherkin specification language and integrates to many development tools (VS2008, VS2010, MonoDevelop, SharpDevelop, MsBuild). It provides efficient testing solution for the .NET-related platforms, like .NET 3.5, .NET4.0 , Mono, Silverlight 3, Silverlight 4 or Windows Phone 7. SpecFlow+ is a set of extensions and tools to get more out of SpecFlow:1) Closer integration with your stakeholders 2) Enhanced integration with your development process and tool chain 3) Scalable test execution