Pester provides a framework for running Unit Tests to execute and validate PowerShell commands inside of PowerShell. Pester follows a file naming convention for naming tests to be discovered by pester at test time and a simple set of functions that expose a Testing DSL for isolating, running, evaluating and reporting the results of Powershell commands.
NoseGAE is a nose plugin that makes it easier to write functional and unit tests for Google App Engine applications. The plugin sets up the GAE development environment before your test run. This means that you can easily write functional tests for your application without having to actually start the dev server and test over http. Note however that this kind of testing requires that your application be a wsgi application.
Midje is a test framework for Clojure. I created it to support top-down as well as bottom-up testing, to encourage readable tests, to provide a smooth migration path from clojure.test and to support a balance between abstraction and concreteness.
DbSetup is an open-source Java API that helps you setup your database data to execute DAO/Repository unit tests. It plays in the same league as tools like DBUnit, but is much simpler, and focuses on a single task: populate the database with test data.
Needle is a lightweight framework for testing Java EE components outside of the container in isolation. It reduces the test setup code by analysing dependencies and automatic injection of mock objects. It will thus maximize the speed of development as well as the execution of unit tests.