Jan 5, 2012 · I have a Java class. How can I unit test it? In my case, I have a class that calculates a binary sum. It takes two byte[] arrays, sums them, and returns a new binary array.

Jun 28, 2013 · My test case is testing the code that validates the value, not the value itself. Is there a way to use Java code inside my test class to initialize a Java class and populate the Spring @Value …

Aug 29, 2008 · How do I use JUnit to test a class that has internal private methods, fields or nested classes? It seems bad to change the access modifier for a method just to be able to run a test.

Mar 16, 2009 · Unit testing involves breaking your program into pieces, and subjecting each piece to a series of tests. Usually tests are run as separate programs, but the method of testing varies, …

A unit test is a test written by the programmer to verify that a relatively small piece of code is doing what it is intended to do. They are narrow in scope, they should be easy to write and execute, and their …

Jul 10, 2023 · 1 I want to unit test a method which takes a record class as input. The record class is fairly large and the method implements complex business logic. To test the logic, I need to create a …

Java 8 introduced the abstract class java.time.Clock which allows you to have an alternative implementation for testing. This is exactly what Jon suggested in his answer back then.

1 Let assume i am having a RestController with GET/POST/PUT/DELETE operations and i have to write unit test using spring boot.I will just share code of RestController class and respective unit test.Wont …

By testing that a specific method can throw an error, you are tying your tests directly to the implementation. I would argue that testing in the method shown above provides a more valuable test. …

Jul 22, 2010 · 7 Many unit testing frameworks allow your tests to expect exceptions as part of the test. JUnit, for example, .