Using AssertJ for assertions

In this recipe, we will add AssertJ to your classpath (or check if it's already there) and take a look at a test that should show the concept that lies behind the AssertJ library.

Getting ready

First, let's check the differences between the different AssertJ JAR files:

  • assertj-core: This file contains the vast majority of assertions (there is rarely a need to have any additional dependencies)
  • assertj-guava: This file contains additional assertions for some of the Guava library related classes
  • assertj-neo4j: This file contains additional assertions for the Neo4j graph database related classes
  • assertj-joda-time: This file contains additional assertions for the JodaTime library related classes
  • assertj-assertions-generator-maven-plugin ...

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