Unit testing with tools such as JUnit

I. Definition of Class

First, create a project named JUNIT4, and define the calculator class to perform subtraction operations under the project.

Ii. Introduction of JUnit Projects

1. Introduce the JUnit unit test package into this project, right click on the properties on the project, then Java Build Path, then click on Libraries, right click on the add Library, for example:

2. Select JUnit in the New Popup dialog box, such as:

3, click Next, select JUNIT4, click FINISH,JUNIT4 Package on the introduction of JUNIT4 project, such as:

Iii. generating the JUnit test framework

In the Package Explorer, right click on new to select the JUnit test case, set the Calculatortest class, and put the test code, such as:

Iv. Results of operation

1. Right-click Calculatortset.java, select Run as, and select JUnit Test, as shown in:

V. Recording the time of each stage

Program plan: 20%

Program Design: 30%

Program code: 30%

Program test: 20%

Vi. Address of GitHub

Https://github.com/aituzi/Junit4

Unit testing with tools such as JUnit