The idea of driving development with tests has been popularized by the agile development movement. The fact is that testing and coding are inseparable components of software development. We get the best results with testers and programmers work closely together. How can we deliver real value to the business frequently? How can we know how much testing is enough? Let’s look at how testers and programmers collaborate to produce high-quality software.

With new algorithms and tools, developers can apply high-strength combinatorial testing to detect elusive failures that occur only when multiple components interact.

Texttest is an application-independent open source tool for text-based functional testing. This means running a batch-mode binary in lots of different ways, and using the text output produced as a means of controlling the behaviour of that application.

The goal of JsTestDriver is to build a JavaScript test runner which:
1. easily integrates with continuous builds systems and
2. allows running tests on multiple browsers quickly to ease TDD style development

Page Speed is an open-source Firefox/Firebug Add-on. Webmasters and web developers can use Page Speed to evaluate the performance of their web pages and to get suggestions on how to improve them.

A blog about software testing and software quality topics: Software Testing, Bug Tracking, Code Review, Continuous Integration.

QUnit is the unit testrunner for the jQuery project.

Xinc is a continuous integration server written in PHP 5. It has built-in support for Subversion and Phing (and therefore PHPUnit), and can be easily extended to work with alternative version control or build tools.

While language-oriented toolsets become more advanced the range of development and deployment tools for databases remains primitive. How often is the DBA left sitting in the corner? Are you scared to change your database because other applications are using it? Do you have difficulty rolling out incremental changes to your databases? Does your database prevent you from releasing your software more frequently? Using real-world experiences - and the principles outlined in Ambler and Sadalage’s Refactoring Databases, this paper aims to demonstrate how to take control of the database and make it possible to incrementally evolve and improve its design. With these techniques the database need no longer be the bottleneck in your develop-test-deploy process. This paper features ideas on how to best use open source tools including Ant, CruiseControl and dbdeploy.

MIGRATEdb will parse an XML file of database changes and load them to the targeted database if they are not already there. A database change consists of tests to determine whether the change has already been applied and a set of change actions.