Junit4中的新断言assertThat的是用方法

如果需要是用assertThat需要在项目中引入junit4的jar包,以及hamcrest-core.jar和hamcrest-library.jar
下面是常用断言的代码

[Java]  纯文本查看  复制代码

import static org.hamcrest.Matchers.*;
 import static org.junit.Assert.assertThat;

 import java.util.ArrayList;
 import java.util.HashMap;
 import java.util.List;
 import java.util.Map;

 import org.junit.Before;
 import org.junit.Test;

 import com.lyh.share.model.User;

 public class UserDaoTest {

         private User test1;
         private User test2;

         @Before
         public void init(){
                 test1 = new User();
                 test1.setUsername( "tt1" );
                 test1.setPassword( "123" );
                 test1.setShares( 50 );
                 test2 = new User();
                 test2.setUsername( "tt2" );
                 test2.setPassword( "321" );
                 test2.setShares( 20 );
         }

         @Test
         public void findUser(){

                 /**数值匹配**/
                 //测试变量是否大于指定值
                 assertThat(test1.getShares(), greaterThan( 50 ));
                 //测试变量是否小于指定值
                 assertThat(test1.getShares(), lessThan( 100 ));
                 //测试变量是否大于等于指定值
                 assertThat(test1.getShares(), greaterThanOrEqualTo( 50 ));
                 //测试变量是否小于等于指定值
                 assertThat(test1.getShares(), lessThanOrEqualTo( 100 ));

                 //测试所有条件必须成立
                 assertThat(test1.getShares(), allOf(greaterThan( 50 ),lessThan( 100 )));
                 //测试只要有一个条件成立
                 assertThat(test1.getShares(), anyOf(greaterThanOrEqualTo( 50 ), lessThanOrEqualTo( 100 )));
                 //测试无论什么条件成立(还没明白这个到底是什么意思)
                 assertThat(test1.getShares(), anything());
                 //测试变量值等于指定值
                 assertThat(test1.getShares(), is( 100 ));
                 //测试变量不等于指定值
                 assertThat(test1.getShares(), not( 50 ));

                 /**字符串匹配**/
                 String url = "http://www.taobao.com" ;
                 //测试变量是否包含指定字符
                 assertThat(url, containsString( "taobao" ));
                 //测试变量是否已指定字符串开头
                 assertThat(url, startsWith( "http://" ));
                 //测试变量是否以指定字符串结尾
                 assertThat(url, endsWith( ".com" ));
                 //测试变量是否等于指定字符串
                 assertThat(url, equalTo( "http://www.taobao.com" ));
                 //测试变量再忽略大小写的情况下是否等于指定字符串
                 assertThat(url, equalToIgnoringCase( "http://www.taobao.com" ));
                 //测试变量再忽略头尾任意空格的情况下是否等于指定字符串
                 assertThat(url, equalToIgnoringWhiteSpace( "http://www.taobao.com" ));


                 /**集合匹配**/

                 List user = new ArrayList();
                 user.add(test1);
                 user.add(test2);

                 //测试集合中是否还有指定元素
                 assertThat(user, hasItem(test1));
                 assertThat(user, hasItem(test2));

                 /**Map匹配**/
                 Map userMap = new HashMap();
                 userMap.put(test1.getUsername(), test1);
                 userMap.put(test2.getUsername(), test2);

                 //测试map中是否还有指定键值对
                 assertThat(userMap, hasEntry(test1.getUsername(), test1));
                 //测试map中是否还有指定键
                 assertThat(userMap, hasKey(test2.getUsername()));
                 //测试map中是否还有指定值
                 assertThat(userMap, hasValue(test2));
         }

 }