Groovy testing with Spock Framework. 12+ examples covering given/when/then, data-driven testing, mocking, stubbing, exception testing, @Unroll. Groovy 5.x. “The best code is code you can prove works. Spock makes that proof readable, expressive, and even enjoyable.” Kent Beck, Test-Driven Development Last Updated: March 2026 | Tested on: Groovy 5.x, Spock 2.4, Java 17+ | Difficulty: Beginner to Intermediate | Reading Time: 25 minutes Testing is one of those things every developer knows they should do, but too often the testing ... Read More