Often as developers, we need to add unit testing to legacy code while being unable to make non-trivial changes to the code under test. In legacy code, logging and other resources are often set up in a static initializer. That code won’t execute nicely in a unit testing environment (could be using JNDI or something […]
Tag: java
Mocking Static Singletons in Java (Mockito 3.4+, EasyMock, JMockit)
A common problem for Java developers that wish to get comprehensive unit test coverage is handling the mocking of singletons that are implemented using static method calls. Let’s look at how we can mock singleton behavior using three common Java testing libraries Mockito, EasyMock and JMockit. Part 1: Write Code to Test To start with, […]