I gave a presentation on Spock a very nice BDD framework in Groovy a few months back to our Groovy Users Group in Sacramento. After using it on a real world Grails project the last few months it has grown on me to become my go to testing framework for Groovy/Grails or Java projects. A typical specification looks something like this:
def "a pager should calculate total pages, current page, and offset"() {
when: "count, rows and page number"
def pager = new Pager(count, rows, page)
then: "should return correct total pages, the current page, and the offset"
pager.totalPages == totalPages
pager.currentPage == currentPage
pager.offset == offset
where: "you have a number of different scenarios"
count | rows | page | totalPages | currentPage | offset
100 | 10 | 1 | 10 | 1 |
950 | 100 | 5 | 10 | 5 | 400
72 | 20 | 3 | 4 | 3 | 40
}If that passed your 5 second test take a look at a fuller introductory tutorial I put together.
A Gentle Introduction to Spock
And if you want to try out executing real code the project has a nice browser based environment at Meet Spock.