X-Mas Musings #21 – Groovy 3 and 2.6

December is for many people a period of reflection or thought. So I decided to reflect upon last year’s things and thoughts — each day until Christmas. This is day 21.

X-Mas Musings #19 – GR8Conf Brings You All Things Groovy

December is for many people a period of reflection or thought. So I decided to reflect upon last year’s things and thoughts — each day until Christmas. This is day 19.

X-Mas Musings #15 – Too Many Paths. One Path Spec?

December is for many people a period of reflection or thought. So I decided to reflect upon last year’s things and thoughts — each day until Christmas. This is day 15.

X-Mas Musings #8 – First Open-Source Project

December is for many people a period of reflection or thought. So I decided to reflect upon last year’s things and thoughts — each day until Christmas. This is day 8.

X-Mas Musings #6 – Greach

December is for many people a period of reflection or thought. So I decided to reflect upon last year’s things and thoughts — each day until Christmas. This is day 6.

Make Your Groovy Objects More Bullet-Proof

Written during GR8Conf and published just before my holiday. Now a blogpost was due about a small Groovy library I wrote to make my value objects more “bullet-proof”, aptly called Bulletproof 🙂

Grails 3.3 Integration Testing with Spock Mocks

It is easy to use the Spock Framework, shipped with Grails, to mock or stub a collaborator (such as a service) in our Grails unit tests.

The Testing chapter explains a bit about mocking collaborators, doWithSpring/doWithConfig callback methods, the FreshRuntime annotation to mock beans in tests — but they’re mainly for unit testing.

How about mocking beans in an integration test?

Grails 3.3 has Spock 1.1

You’ll be glad to know that milestone 1 of Grails 3.3 has been released 3 days ago — and is also already available through SDKMAN!.

Not only has it upgraded its dependencies to Hibernate 5.1.5, Spring Framework 4.3.7, Spring Boot 1.5.3 and Gradle 3.5, but it also finally ships with the latest Spock 1.1 testing framework.

Groovy: Grouping using groupBy vs collectEntries

Since Groovy 1.0 we have groupBy and collectEntries to group elements from a Collection together into a Map. I had a little fun with them last week.

Avoid NullPointerException: Safe Navigation with Groovy

We know it’s all too common in Java to get a NullPointerException when we use an object reference which is null. This happens when our code tries to access a method or field of an object, or element of an array when there’s no instance present – e.g. it refers to null.

class Animal {
 String name
 Animal parent
}

def animal = new Animal(name: "Bella") // no parent