Randoop 1.2

The Randomized Unit Test Generator for Java

What is Randoop?

• Randoop is an automatic test generator for Java. It automatically creates unit tests for your classes, in JUnit format.

• Randoop generates unit tests using feedback-directed random test generation. In a nutshell, this technique randomly, but smartly, generates sequences of methods and constructor invocations for the classes under test, and uses the sequences to create tests. Randoop executes the sequences it creates, using the results of the execution to create assertions that capture the behavior or your program and that catch bugs.

• Randoop has created tests that find previously unkwon errors even in widely-used libraries including Sun and IBM's JDKs. A .NET version of Randoop, used internally at Microsoft, has been used successfully by a team of test engineers to find errors in a core .NET component that has been heavily tested for years. Randoop's combination of randomized test generation and test execution results in a highly effective test generation technique.

System Requirements

We have tested Randoop using Java 6 or greater under Linux and Mac OS X (1.14).

Because it is written in Java, Randoop should work on Java 5 or greater under Windows, but we haven't tested it. We welcome feedback on user experiences under Windows.

What's new

• 07/22/2008. Talk: Finding Errors in .NET with Feedback-directed Random Testing at ISSTA 2008: International Symposium on Software Testing and Analysis.

• 07/20/2008. New release: Randoop version 1.2 has been released.