InfoQ Homepage TDD Content on InfoQ
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Can Tools Reduce the Effort Involved in Test Driven Development?
With the presence of high quality test generation tools like Agitar One and Parasoft's JTest, some are questioning the need to write tests manually. 'Uncle' Bob Martin weighted in, exploring the weakness of the idea.
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Does TDD Really Ensure Quality?
Analysis of a recent study by the National Research Council of Canada's Institute of Technology into Test Driven Development turned up some interesting observations regarding the value that this approach adds, including whether, in fact, it adds any more value to the quality process than testing after development.
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Private Methods, Test Driven Development, and Good Design
The claim has been made that test driven development (TDD) encourages good design. The claim has also been made that TDD adversely affects design. Focusing on private methods and their relationships to good design and testability will give us something concrete to discuss - an instance of this apparent conflict.
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RSpec 1.1 - A Step Up for BDD advocates
RSpec has become a poster child for both Domain Specific Languages and Behavior Driven Development (BDD), a type of Test Driven Development. The new RSpec 1.1 release adds improved support for Rails and other improvements.
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'MSF for Agile' with MS VSTS - Worth a Look?
At Qcon London, Kevin Jones spoke from his experiences about Building Better Apps using MSF for Agile with Visual Studio Team System (VSTS). Using examples from Agile teams, he walked through the layers and components of Microsoft's tools, emphasising their flexibility. For Agile teams considering / already committed to Microsoft, this video provides an experienced viewpoint & may be worth a look.
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Continuous Integration and Code Inspection with Hudson and FindBugs
A recent article published in IBM developerWorks talks about automating Continuous Integration and Code Inspection tasks in a build process using open source tools. It explains how to install and configure Hudson server with Subversion, Ant, and software inspection tools like FindBugs and PMD to create a build process with continuous feedback on test results and defects.
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Article: Iterative, Automated and Continuous Performance
A new InfoQ article looks at evaluating performance in an iterative and continuous manner.
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Test Driven Development or Test Driven Requirements?
Where does one start when practicing test driven development? With the requirements or with the design? Or, put another way, top-down or bottom-up? When one starts to write a test first, without any code, what does that test represent? Both approaches are practiced in the Agile community, but there is little consensus on which provides more value.
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High abstraction level of DSLs to reduce the testing burden?
Inconsistencies between the user interface and user’s expectations can be an important source of bugs. According to Leonardo Vernazza, this is due the fact that the user and the UI do not talk the same language. Using a DSL, characterized by a high abstraction level, would be instrumental for avoiding the risk of translation errors and would therefore reduce the testing burden.
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QCon Panel: Modifiability - Or is there any design in Agility?
Many people assume that agile methods mean an absence of design. Design still happens in agile projects, but it shifts from an up-front phase to a continual evolution. Design decisions should be left to the last responsible moment, but some design decisions do need to be made upfront. Martin Fowler explored this topic through a panel discussion at the last QCon.
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Next-Generation Functional Testing
What should the next generation of functional testing tools offer? The Agile Alliance is holding a workshop to envision the next-generation of functional testing tools, from October 11th to 12th. What do you think needs the most attention?
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Analyzing Experimental Data Concerning Agile Practices
Agile literature is sprinkled with experiments on the effectiveness of one or more practices. Not all experiments come to the same conclusion. Some experiments come to conclusions that may not coincide with your team’s experience. To understand experimental results, and the level of confidence that you should have in their outcomes, an understanding of a few simple evaluation criteria is helpful.
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xUnit.net - Next Generation of Unit Testing Frameworks?
Jim Newkirk, creator of NUnit, has announced a new Unit Testing Framework called xUnit.net. The proclaimed successor to NUnit is supposed to get rid of NUnit's mistakes and shortcomings and add some best practices and extensibility to the framework.
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ObjectMother - a Forgotten Testing Tool
One of the earliest techniques for writing tests using TDD did not use mocks and stubs, but used the actual business objects instead. By creating a set of factories that instantiated, composed, and executed methods on business objects, real objects, in a non-initial-state of their lifecycle, could be created for testing purposes. The name coined for this pattern was ObjectMother.
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Presentation: System Integration Testing with Spring
Spring provides a holistic solution that makes your application's use cases and subsystems easier to test. The emphasis is on testing outside a JEE server or container, thus greatly improving productivity. In this presentation, Spring Creator Rod Johnson discusses integration testing and the support that Spring provides for it.