JUnit isn't part of the standard Java class libraries, but it does come included with Eclipse. A unit test generally consists of various testing methods that each interact with the class under test in some specific way to make sure it works as expected.
Unit testing is the process of examining a small 'unit' of software (usually a single class) to verify that it meets its expectations or specification.Ī unit test targets some other 'class under test ' for example, the class ArrayIntListTest might be targeting the ArrayIntList as its class under test. JUnit is a Java library to help you perform unit testing.
