how to write junit test

There are two ways to test a private method in JUnit:First, change the access rights of private methods (this method is not recommended)Second, the use of reflection mechanism (recommended)For example, there is a private int add2 (int a,int b) in the Calculator class{return a+b;}So in our test method of testing class:@Testpublic void Add2 (){Calculator c=new Calculator ();Classtry {Method Method=cal.getdecl

; groupId>Org.springframework.bootgroupId> Artifactid>Spring-boot-starter-webArtifactid> Dependency> Dependency> groupId>MysqlgroupId> Artifactid>Mysql-connector-javaArtifactid> Scope>RuntimeScope> Dependency> Dependency> groupId>Org.springframework.bootgroupId> Artifactid>Spring-boot-starter-testArtifactid> Scope>TestScope> Dependency> Dependencies>3) Entity classes, JPA

Copyright notice: When reprinted, please indicate the original source and author information of the article by hyperlink form and this statementHttp://ralf0131.blogbus.com/logs/75756167.html Reference: http://today.java.net/pub/a/today/2003/09/12/individual-test-cases.html Modify Build.xml Add the following target, the first target requires that a test case file name must be entered at the command line, or

Using JUnit test database joins 2007-04-13 13:05 Create a database demo in MySQLFirst, establish a simple database connection class based on MySQLConmysql.javaImport java.sql.Connection;Import Java.sql.DriverManager;public class Conmysql {Public Conmysql () {}PRIVATE Connection conn = null;Private String URL = "Jdbc:mysql://localhost:3306/demo";Private String user = "root";Public Connection Conn

The distance from the last time to do junit monomer test for several months, and sure enough to use, and learn some new things, summed up. The first is the understanding of the spy, has been used to mock, did not use the spy, so the spy does not understand, recently used a few times, also in Google learning a bit, online said are more written, mock: all Mock;spy: part of the mock; What is called part bu

Uploading an array using JSON1 Packagejunittest;2 3 Importjava.util.ArrayList;4 ImportJava.util.HashMap;5 Importjava.util.List;6 ImportJava.util.Map;7 Importorg.junit.Test;8 ImportCom.alibaba.fastjson.JSON;9 ImportVO.RESVO;Ten ImportInterfacetest_1.httputil; One A Public classUserInfo { - - //set up a common menu the @Test - Public voidSetMenu () { - intMenuId = 1; - intOrder = 1; +

Example of a DAO layer built with the JUnit Test Spring framework: Package Com.project.dao; Import Java.text.DateFormat; Import Java.text.SimpleDateFormat; Import java.util.Date; Import Org.junit.Assert; Import Org.junit.Test; Import Org.junit.runner.RunWith; Import org.springframework.beans.factory.annotation.Autowired; Import org.springframework.test.context.ContextConfiguration; Import Org.springf

After the project adds MAVEN support, run the JUnit unit test and an error occurs: ERROR in Ch.qos.logback.core.joran.action.appenderaction-could not create a appender of type [COM.TRAVELSKY.TDP.P KgStock.integration.logback.appender.mail.SMTPAppender]. Ch.qos.logback.core.util.DynamicClassLoadingException: Failed to instantiate type Com.travelsky.tdp.pkgStock.integration.logback.appender.mail.SMTPAppen

Today, I encountered a strange thing. I configured transactions in the Spring configuration file and performed transactions on all methods at the Service layer. However, when I tested one of the methods, it is found that it is not a transaction, and the first operation in it is completed, but the second operation fails. The reason is found. It turns out that the try and catch statement blocks are used inside this method, so that exceptions are caught internally. In Spring, transaction rollback i

Steps1, Inherit abstractjunit4springcontexttests2, introduce ApplicationContextSample Code 123456789101112131415161718192021222324 import org.junit.runner.RunWith;import org.springframework.test.context.ContextConfiguration;import org.springframework.test.context.junit4.AbstractJUnit4SpringContextTests;import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;@RunWith(SpringJUnit4ClassRunner.class)@ContextConfiguration(locations = { "/spring/applicationContext.xml"

The most recent use of the DAO injected by the JUnit Test Spring produces a strange javaw.exe error that needs to be closed. At first I thought it was the configuration file or the code was wrong, but the check did not identify the problem. So sent to a friend that implementation, his computer on the implementation immediately green, depressed 2 days also can not solve, should be aware of the problem of th

Directly on the code package dependency please add your own Maven added dependency is very convenient1, Testbase.javaPackage Com.test;import Org.apache.commons.logging.log;import Org.apache.commons.logging.logfactory;import Org.junit.before;import Org.junit.runner.runwith;import Org.springframework.test.context.activeprofiles;import Org.springframework.test.context.contextconfiguration;import Org.springframework.test.context.junit4.SpringJUnit4ClassRunner, @RunWith (Springjunit4classrunner.class

Develop a eclipse3.4+struts2.0+hibernate3.2+spring2.5+oracle10g project. After implementing the DAO layer, you want to test the DAO layer. Used to be used Junit3.8, this time for the latest Junit4.4, but in writing test class encountered a lot of trouble, will encounter problems and solutions recorded, for later friends reference. The following sections explain how to w