Spring+Unit测试实例:之前写过一个连接数据库的spring mvc annotation的一个实例(点击这里查看)。
当我们启动Web项目时要先启动Tomcat,而在Tomcat的启动过程中会读取spring项目的的各个配置文件,实例化各个注入的类,所以我们的程序中直接使用注解就可以操作各个类。
但是如果按普通的项目测试,就缺少了读取配置文件的过程,所以当你调用一个类方法时会出现空指针错误,因为类没有实例化。
对Spring MVC Dao的JUnit的测试。
下面是对上面提到的实例中的UserDao.class的测试,内容如下:
package org.spring.wayne.dao;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.spring.wayne.web.form.User;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.test.context.ContextConfiguration;
import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration(locations = { "file:WebContent/WEB-INF/springMVCForm-servlet.xml" })
public class UserDaoTest {
@Autowired
private UserDao userDao;
@Test
public void test() {
User user = new User();
user.setUserName("u");
user.setPassword("p");
userDao.addUser(user);
}
}
右键->Run as->JUnit Test运行,无误。查询数据库显示已经插入数据库。
对Spring MVC Controller的JUnit的测试。
下面是对上面提到的实例中的RegController.class的测试,内容如下:
package org.spring.wayne.web.controller;
import static org.junit.Assert.assertEquals;
import org.junit.After;
import org.junit.Before;
import org.junit.Test;
import org.mockito.Mock;
import org.mockito.Mockito;
import org.mockito.MockitoAnnotations;
import org.spring.wayne.web.form.User;
import org.springframework.mock.web.MockHttpServletRequest;
import org.springframework.mock.web.MockHttpServletResponse;
import org.springframework.ui.ExtendedModelMap;
import org.springframework.ui.Model;
import org.springframework.validation.BindingResult;
public class RegControllerTest {
@Mock
private BindingResult mockBindingResult;
@Before
public void setUp() {
MockitoAnnotations.initMocks(this);
Mockito.when(mockBindingResult.hasErrors()).thenReturn(true);
}
@Test
public void test() throws Exception {
MockHttpServletRequest request = new MockHttpServletRequest();
MockHttpServletResponse response = new MockHttpServletResponse();
RegController regController = new RegController();
Model model = new ExtendedModelMap();
User user = new User();
user.setUserName("uuuuuuu");
user.setPassword("ppppppp");
String result = regController.handler(user, mockBindingResult, model, request, response);
System.out.println(result);
assertEquals("register", result);
}
@After
public void destroy() {
}
}
右键->Run as->JUnit Test运行,无误。
读取WEB-INF下配置文件的方法:
配置文件放在class目录下:
ApplicationContext applicationContext = new ClassPathXmlApplicationContext("springMVCForm-servlet.xml");
WEB-INF下:
ApplicationContext applicationContext = new FileSystemXmlApplicationContext("WebContent/WEB-INF/springMVCForm-servlet.xml");
多个文件可用*表示:
ApplicationContext applicationContext = new FileSystemXmlApplicationContext("WebContent/WEB-INF/springMVCForm-*.xml");
注解方式:
配置文件放在class目录下:
@ContextConfiguration(locations={"classpath:springMVCForm-servlet.xml"})
WEB-INF下:
@ContextConfiguration(locations={"file:WebContent/WEB-INF/springMVCForm-servlet.xml"})
使用注解时,Junit报错:
java.lang.NoSuchFieldError: NULL
at org.junit.runners.ParentRunner.<init>(ParentRunner.java:48)
at org.junit.runners.BlockJUnit4ClassRunner.<init>(BlockJUnit4ClassRunner.java:58)
at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.<init>(SpringJUnit4ClassRunner.java:104)
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)
at java.lang.reflect.Constructor.newInstance(Constructor.java:513)
at org.junit.internal.requests.ClassRequest.buildRunner(ClassRequest.java:33)
at org.junit.internal.requests.ClassRequest.getRunner(ClassRequest.java:28)
at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.<init>(JUnit4TestReference.java:33)
at org.eclipse.jdt.internal.junit4.runner.JUnit4TestClassReference.<init>(JUnit4TestClassReference.java:25)
at org.eclipse.jdt.internal.junit4.runner.JUnit4TestLoader.createTest(JUnit4TestLoader.java:48)
at org.eclipse.jdt.internal.junit4.runner.JUnit4TestLoader.loadTests(JUnit4TestLoader.java:38)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:452)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:683)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:390)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:197)
经检查是jar包冲突,我在建项目的时候,myeclipse有自动加入junit4,而后面我又自己加入Junit4.8.1。
如果报以下错误,则是junit包版本太低,需要4.5或以上的版本:
Caused by: java.lang.ClassNotFoundException: org.junit.runners.BlockJUnit4ClassRunner
at java.net.URLClassLoader$1.run(URLClassLoader.java:200)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:188)
at java.lang.ClassLoader.loadClass(ClassLoader.java:307)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
at java.lang.ClassLoader.loadClass(ClassLoader.java:252)
at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:320)
#
分享到:
相关推荐
赠送jar包:junit-jupiter-engine-5.8.2.jar; 赠送原API文档:junit-jupiter-engine-5.8.2-javadoc.jar; 赠送源代码:junit-jupiter-engine-5.8.2-sources.jar; 赠送Maven依赖信息文件:junit-jupiter-engine-...
赠送jar包:junit-jupiter-api-5.4.2.jar; 赠送原API文档:junit-jupiter-api-5.4.2-javadoc.jar; 赠送源代码:junit-jupiter-api-5.4.2-sources.jar; 赠送Maven依赖信息文件:junit-jupiter-api-5.4.2.pom; ...
赠送jar包:junit-jupiter-api-5.8.2.jar; 赠送原API文档:junit-jupiter-api-5.8.2-javadoc.jar; 赠送源代码:junit-jupiter-api-5.8.2-sources.jar; 赠送Maven依赖信息文件:junit-jupiter-api-5.8.2.pom; ...
赠送jar包:junit-jupiter-engine-5.8.0-M1.jar; 赠送原API文档:junit-jupiter-engine-5.8.0-M1-javadoc.jar; 赠送源代码:junit-jupiter-engine-5.8.0-M1-sources.jar; 赠送Maven依赖信息文件:junit-jupiter-...
赠送jar包:junit-jupiter-api-5.7.2.jar; 赠送原API文档:junit-jupiter-api-5.7.2-javadoc.jar; 赠送源代码:junit-jupiter-api-5.7.2-sources.jar; 赠送Maven依赖信息文件:junit-jupiter-api-5.7.2.pom; ...
赠送jar包:junit-jupiter-api-5.8.0-M1.jar; 赠送原API文档:junit-jupiter-api-5.8.0-M1-javadoc.jar; 赠送源代码:junit-jupiter-api-5.8.0-M1-sources.jar; 赠送Maven依赖信息文件:junit-jupiter-api-5.8.0-...
赠送jar包:junit-platform-launcher-1.8.0-M1.jar; 赠送原API文档:junit-platform-launcher-1.8.0-M1-javadoc.jar; 赠送源代码:junit-platform-launcher-1.8.0-M1-sources.jar; 赠送Maven依赖信息文件:junit-...
赠送jar包:junit-jupiter-api-5.5.2.jar; 赠送原API文档:junit-jupiter-api-5.5.2-javadoc.jar; 赠送源代码:junit-jupiter-api-5.5.2-sources.jar; 赠送Maven依赖信息文件:junit-jupiter-api-5.5.2.pom; ...
赠送jar包:junit-jupiter-params-5.8.0-M1.jar; 赠送原API文档:junit-jupiter-params-5.8.0-M1-javadoc.jar; 赠送源代码:junit-jupiter-params-5.8.0-M1-sources.jar; 赠送Maven依赖信息文件:junit-jupiter-...
赠送jar包:junit-platform-launcher-1.8.0-M1.jar; 赠送原API文档:junit-platform-launcher-1.8.0-M1-javadoc.jar; 赠送源代码:junit-platform-launcher-1.8.0-M1-sources.jar; 赠送Maven依赖信息文件:junit-...
赠送jar包:junit-jupiter-api-5.8.0-M1.jar; 赠送原API文档:junit-jupiter-api-5.8.0-M1-javadoc.jar; 赠送源代码:junit-jupiter-api-5.8.0-M1-sources.jar; 赠送Maven依赖信息文件:junit-jupiter-api-5.8.0-...
赠送jar包:junit-jupiter-params-5.7.2.jar; 赠送原API文档:junit-jupiter-params-5.7.2-javadoc.jar; 赠送源代码:junit-jupiter-params-5.7.2-sources.jar; 赠送Maven依赖信息文件:junit-jupiter-params-...
赠送jar包:junit-platform-engine-1.8.2.jar; 赠送原API文档:junit-platform-engine-1.8.2-javadoc.jar; 赠送源代码:junit-platform-engine-1.8.2-sources.jar; 赠送Maven依赖信息文件:junit-platform-engine...
赠送jar包:junit-jupiter-engine-5.4.2.jar; 赠送原API文档:junit-jupiter-engine-5.4.2-javadoc.jar; 赠送源代码:junit-jupiter-engine-5.4.2-sources.jar; 赠送Maven依赖信息文件:junit-jupiter-engine-...
赠送jar包:junit-platform-launcher-1.6.1.jar; 赠送原API文档:junit-platform-launcher-1.6.1-javadoc.jar; 赠送源代码:junit-platform-launcher-1.6.1-sources.jar; 赠送Maven依赖信息文件:junit-platform-...
赠送jar包:junit-vintage-engine-5.8.0-M1.jar; 赠送原API文档:junit-vintage-engine-5.8.0-M1-javadoc.jar; 赠送源代码:junit-vintage-engine-5.8.0-M1-sources.jar; 赠送Maven依赖信息文件:junit-vintage-...
赠送jar包:junit-jupiter-params-5.5.2.jar; 赠送原API文档:junit-jupiter-params-5.5.2-javadoc.jar; 赠送源代码:junit-jupiter-params-5.5.2-sources.jar; 赠送Maven依赖信息文件:junit-jupiter-params-...
赠送jar包:junit-vintage-engine-5.5.2.jar; 赠送原API文档:junit-vintage-engine-5.5.2-javadoc.jar; 赠送源代码:junit-vintage-engine-5.5.2-sources.jar; 赠送Maven依赖信息文件:junit-vintage-engine-...
赠送jar包:junit-vintage-engine-5.8.0-M1.jar; 赠送原API文档:junit-vintage-engine-5.8.0-M1-javadoc.jar; 赠送源代码:junit-vintage-engine-5.8.0-M1-sources.jar; 赠送Maven依赖信息文件:junit-vintage-...
赠送jar包:junit-platform-commons-1.8.2.jar; 赠送原API文档:junit-platform-commons-1.8.2-javadoc.jar; 赠送源代码:junit-platform-commons-1.8.2-sources.jar; 赠送Maven依赖信息文件:junit-platform-...