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Joey

Rationale

Testing is a major part of any enterprise software development life cycle. Testing should be automated to the maximum extent possible; and writing automated tests should be easy and fun, else developers won't do it. Conventional testing frameworks for Java, JavaScript, etc. offer fine-grained control but do not make the process of writing tests particularly easy or convenient. An alternative might be to extend a programming or scripting language with special constructs that allow test cases to be written quickly, with many details such as generating test data and making assertions on results implicit, leaving the programmer to only specify what needs to be tested, what the input should look like, and what the expected output is.

Summary

Joey is an integration testing framework for RESTful services. It is named after the character Joey Pardella from the movie Hackers, because like its inspiration, it knows nothing about the internals of the systems it tests. Instead it "throws commands" (in the form of HTTP requests) at them, observes the results, and compares them against expected results.

Joey is written in Kawa Scheme and runs on top of the JVM. The use of Scheme allows for Joey to be controlled and programmed with special language extensions built atop Scheme that are specific to testing. New tests can be written quickly and easily.

Joey supports the following features:

  • Extensional testing of a Web service by serving as an HTTP client

  • GET, POST, PUT, DELETE methods

  • Test cases are written in Scheme with an embedded testing DSL

  • Generation of randomized test data

  • Results are matched to templates