EasyMock provides Mock Objects for interfaces in JUnit tests by generating them on the fly using Java's proxy mechanism. Due to EasyMock's unique style of recording expectations, most refactorings will not affect the Mock Objects. So EasyMock is a perfect
For those of you who've got into it you'll know that test driven development is great. It gives you the confidence to change code safe in the knowledge that if something breaks you'll know about it. Except for those bits you don't know how to test. Until now XML has been one of them. Oh sure you can use "<stuff></stuff>".equals("<stuff></stuff>"); but is that really gonna work when some joker decides to output a <stuff/>? -- damned right it's not ;-)
The key to agility is being able to modify code easily and safely. The problem is that many Java applications are too brittle to extend and enhance easily. Attempts to fix or extend - no matter how carefully done - can introduce more bugs and more complexity.
With a full suite of characterization tests generated by JUnit Factory you can bring your legacy code under control. Download our free plug-in for Eclipse to get started.
TestabilityExplorer.org records the testability scores for many open source and commercial Java libraries.
The compiled bytecode for the library is analyzed and metrics are calculated for the testability of individual classes. Those classes fall into one of three categories - 'excellent', 'good' and 'needs work'. Generally speaking, injectability, mockabiliy and composition are good, and static state is bad. Figures are recursively calculated, but only inside the jar in question.
The metrics are a calculation of the skill of the development team in making their classes testable. You cannot use these metrics to say that Tomcat is better than Jetty or vice versa, as the features of each are not taken into account. These metrics will also not tell you whether a particular library will be easy to use or not. It just tells you how dedicated the development team was to making testable software. As we track the changing figures overtime, we can see whether the team in question was dedicated to improvement or not.
This article demonstrates a brand new open source library for unit testing, called Unitils. Unitils helps you in writing simple and maintainable unit tests with JUnit or TestNG . It glues together some widely used test libraries like DbUnit and EasyMock and offers integration with Spring and Hibernate . Unitils encourages applying good practices and unit testing guidelines. The ideas behind the code are based on the authors' concrete experience on enterprise projects.
Unitils offers following features
* Equality assertion through reflection, with options like ignoring Java default/null values and ignoring order of collections
* Support for database testing involving test data management with DbUnit, automatic maintenance of unit test databases and automatic constraints disabling
* Hibernate integration features such as session management and testing the mapping with the database
* Integration with Spring, involving ApplicationContext management and injection of spring managed beans
* Integration with EasyMock and injection of mocks into other objects
Simplium aids the developer to create selenium based unit test that can be executed in different browsers and enviroment. With enviroment means the same test can be run against the developers own machine as well as a test machine somewhere on the network or even the production machine.
A Simplium unit tests doesn't have any reference to which URL the test is executed against as well as no reference to which browser the test should be executed in. Instead the Simplium test cases are annotated with Simplium specific annotations which allow Simplium to take control of the test cases when executed.
Simplium looks for which enviroment it is executed in (development, test or production) and based on this information Simplium will execute the test cases against different servers, against a local selenium remote control or selenium grid and execute each test in the browsers that the enviroment has specificed.
FEST is a collection of APIs, released under the Apache 2.0 license, which mission is to simplify software testing.
Modules
FEST is composed of various modules, all of them can be used with TestNG or JUnit.
Swing Module:
* DSL-oriented API for functional Swing GUI testing
* Simulation of user-generated events and reliable GUI component lookup
* Easy-to-use and powerful API that simplifies creation and maintenance of Swing GUI functional tests:
dialog.comboBox("domain").select("Users");
dialog.textBox("username").enterText("alex.ruiz");
dialog.button("ok").click();
dialog.optionPane().requireErrorMessage()
.requireMessage("Please enter your password");
* Ability to take screenshots of failed GUI tests and embed them in a HTML test report
ztest
ztest is a small classlibrary based on java 1.5 intended to be used in junit tests.
The main purpose of ztest is to put constraints on the code structure of java programs.
It can and should be used to specify an architecure by putting constraints on class dependencies. The architecture can be reused by reusing the test.
ztest scans the bytecode of class files in directories, jars, wars, ears and computes a dependency graph. You can query this dependency graph and define the architecure by specifying valid dependencies and rejecting invalid ones.
ztest comes with a dependency-test (ZDependencyTest) with which you can define sets of classes and the allowed dependencies between them.
The class sets are defined by filtering the nodes of the dependeny graph.