Needle vs RSpec comparison of testing frameworks
What are the differences between Needle and RSpec?

	Needle http://needle.spree.de/	RSpec https://rspec.info
Programming language	Java	Ruby
Category	Unit Testing	Unit Testing, Intergration Testing
General info	Needle is a lightweight framework for testing Java EE components outside of the container in isolation Needle reduces the test setup code by analysing dependencies and has automatic injection of mock objects by default. Therefore It will maximize the speed of development as well as the execution of unit tests	Domain Specific Language (DSL) testing solution for Ruby code It focuses on empowering Test Driven Development (TDD). RSpec contains multiple smaller libraries, which may be independently used with other testing frameworks.
xUnit Set of frameworks originating from SUnit (Smalltalk's testing framework). They share similar structure and functionality.	No	Yes Yes, but it differs from more traiditional xUnit solutions. Its tests are written in a "Tests as Specification" manner. This means that the terminology used in RSpec is adjusted to a language more fitting for specification.
Client-side Allows testing code execution on the client, such as a web browser	Yes You can test front-end components and functionality by testing individual front-end classes and functions	Yes RSpec is used to primarily test the behaviour of applications or individual components so it can test front-end behaviour as well - you can use capybara gem with RSpec for that.
Server-side Allows testing the bahovior of a server-side code	Yes You can test back-end components and functionality.one of needles features is database testing via a JPA (Java Persistence API) like hibernate	Yes You can test server-side behaviour with Rspec
Fixtures Allows defining a fixed, specific states of data (fixtures) that are test-local. This ensures specific environment for a single test	Yes It has setUp() and tearDown() functions which are mostly used to execute database operations	Yes RSpec does contain fixture methods
Group fixtures Allows defining a fixed, specific states of data for a group of tests (group-fixtures). This ensures specific environment for a given group of tests.	Yes The setUp() and tearDown functions can be used to define an environment for a group of tests	Yes Group fixture methods are supported
Generators Supports data generators for tests. Data generators generate input data for test. The test is then run for each input data produced in this way.	N/A	Yes RSpec contains generators for example intergration_'test_name' which will save a spec inside the spec/requests folder
Licence Licence type governing the use and redistribution of the software	GNU Lesser General Public License v2.1	MIT License
Mocks Mocks are objects that simulate the behavior of real objects. Using mocks allows testing some part of the code in isolation (with other parts mocked when needed)	Yes One of needle's features is automatic injection of mock objects, it supports EasyMock and Mockito out of the box	Yes Available through rspec-mocks gem.
Grouping Allows organizing tests in groups	N/A	Yes Allows declaring example groups and contexts.
Other Other useful information about the testing framework