I already mentioned this in my previous post, but I wanted to go a little bit deeper on this: the new Groovy Power Assert (and no, let’s not call is GPA). Groovy Power Assert makes assertions quite more powerful. The best way to demonstrate is ofcourse by example. When running the following code in Groovy 1.6: a = 10 b = 9 assert 91 == a * b This will be your output: Exception thrown: Expression:
![Groovy 1.7 Power Assert](https://cdn-ak-scissors.b.st-hatena.com/image/square/8d71ff5111e05619a10d29bb40d7aebaa75c8fbc/height=288;version=1;width=512/https%3A%2F%2Fs0.wp.com%2Fi%2Fblank.jpg)