junit test case example in java

, call the Classicsingleton.getinstance () method at the same time, if thread 1 is advanced into the If block, then thread 2 is controlled, Then there will be two instances of Classicsingleton being created. As you can see from the previous discussion, although the single case pattern is one of the simplest design patterns, implementing it in Java is not as simple as it might be. This article will then re

test code runFirst, the most common integration patterns.After the test code is written, you can write the main method in the corresponding class, run it directly with the Java command, or do not write the main method and run it with the JUnit-supplied runner. JUnit provide

01 Overview JUnit is a regression testing framework (regression testing framework) written by Erich Gamma and Kent Beck. The JUnit test is a white-box test. JUnit has its own JUnit expansion biosphere. Most

The spring framework is used in JUnit unit test cases, which I used very directly./** * For test case base classes that need to be used with spring * @author http://www.coderli.com*/@RunWith (Springjunit4classrunner. class = {"/spring/applicationcontext.xml" })publicclass Springtest {}In the course of the

clear () {// clear the result 43 44 result = 0; 45 46} 47 48 Public int getresult () {49 50 return result; 51 52} 53} The unit test should be performed on this class to the extent of development. The method is very simple. First, right-click the project name to which the class belongs and choose Properties. In the pop-up Properties window, select Java build path on the left side, then select the librari

Transferred from: Http://www.coderli.com/junit-spring-test-applicationcontext The spring framework is used in JUnit unit test cases, directly as follows. @RunWith (Springjunit4classrunner. Class= {"/spring/applicationcontext.xml" })publicclass Springtest {}You want to get the ApplicationContext instance. You can add a

Create a Web projectConfiguring the Pom.xml file------equivalent to a jar packageConfigure APPLICATION.YML-----Profile (Spring database connection, Server service, logging log, etc.)Create package (entity, Controller, service, configuration, repository, interceptor, etc.)Small example:Entity:personData Persistence (DAO):ControllerSpring comes with JUnit test @springboottest without having to configure

JUnit is a regression testing framework (regression testing framework) written by Erich Gamma and Kent Beck for Java developers to write unit tests. JUnit has different techniques for using objects of different natures, such as CLASS,JSP,SERVLET,EJB. The following is an example of a class test.Test steps:1 Importing JU

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"

, negative, and zero. So let's proceed as follows. First, right-click a new juint test case in the calculator class and name it calculatorsquaretest. Then the code of this class is modified as follows: 1 package Org. logback. test; 2 3 Import static Org. JUnit. assert. *; 4 5 import

; ApplicationAndroid:allowbackup= "true"Android:icon= "@drawable/ic_launcher"Android:label= "@string/app_name"Android:theme= "@style/apptheme" > ActivityAndroid:name= "Com.itheima.junit.MainActivity"Android:label= "@string/app_name" > Intent-filter> ActionAndroid:name= "Android.intent.action.MAIN" /> categoryAndroid:name= "Android.intent.category.LAUNCHER" /> Intent-filter> Activity> Application>Manifest>5. Enter the

Because in the program, an interface corresponds to an implementation method, and in the interface often defines a number of related methods, so at the time of testing, if all in the main method inside the test, the main method will appear bloated, and it is not easy for other people to test and view the test data, with JUnit