Junit4中的新断言assertThat的使用方法 傷城~ 2022-05-05 23:46 173阅读 0赞 如果需要是用assertThat需要在项目中引入junit4的jar包.(匹配器和断言方法在junit4的jar包中都能找到，引入就可以了) 下面是常用断言的代码 import static org.hamcrest.MatcherAssert.*; import static org.hamcrest.CoreMatchers.*; 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> user = new ArrayList<User>(); 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<String,User> userMap = new HashMap<String,User>(); 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)); } } **㈠ 一般匹配符** 1、allOf 匹配符表明如果接下来的**所有条件必须都成立**测试才通过，相当于“与”（&&） assertThat( testedNumber, allOf( greaterThan(8), lessThan(16) ) ); 2、anyOf 匹配符表明如果接下来的**所有条件只要有一个成立**则测试通过，相当于“或”（||） assertThat( testedNumber, anyOf( greaterThan(16), lessThan(8) ) ); 3、anything 匹配符表明**无论什么条件，永远为true** assertThat( testedNumber, anything() ); 4、is 匹配符表明如果**前面待测的object等于后面给出的object**，则测试通过 assertThat( testedString, is( "developerWorks" ) ); 5、not 匹配符和is匹配符正好相反，表明如果**前面待测的object不等于后面给出的object**，则测试通过 assertThat( testedString, not( "developerWorks" ) ); **㈡ 字符串相关匹配符** 1、containsString 匹配符表明如果**测试的字符串testedString 包含 子字符串"developerWorks"**则测试通过 assertThat( testedString, containsString( "developerWorks" ) ); 2、endsWith 匹配符表明如果**测试的字符串testedString以子字符串"developerWorks"结尾**则测试通过 assertThat( testedString, endsWith( "developerWorks" ) ); 3、startsWith 匹配符表明如果**测试的字符串testedString以子字符串"developerWorks"开始**则测试通过 assertThat( testedString, startsWith( "developerWorks" ) ); 4、equalTo 匹配符表明如果**测试的testedValue等于expectedValue**则测试通过，**equalTo可以测试数值之间，字符串** **之间和对象之间是否相等**，相当于Object的equals方法 assertThat( testedValue, equalTo( expectedValue ) ); 5、equalToIgnoringCase 匹配符表明如果**测试的字符串testedString在忽略大小写的情况下等于"developerWorks"**则测试通过 assertThat( testedString, equalToIgnoringCase( "developerWorks" ) ); 6、equalToIgnoringWhiteSpace 匹配符表明如果**测试的字符串testedString在忽略头尾的任意个空格的情况下等于"developerWorks"**则 测试通过，注意：字符串中的空格不能被忽略 assertThat( testedString, equalToIgnoringWhiteSpace( "developerWorks" ) ); **㈢ 数值相关匹配符** 1、closeTo 匹配符表明如果所**测试的浮点型数testedDouble在20.0±0.5范围之内**则测试通过 assertThat( testedDouble, closeTo( 20.0, 0.5 ) ); 2、greaterThan 匹配符表明如果所**测试的数值testedNumber大于16.0**则测试通过 assertThat( testedNumber, greaterThan(16.0) ); 3、lessThan 匹配符表明如果所**测试的数值testedNumber小于16.0**则测试通过 assertThat( testedNumber, lessThan (16.0) ); 4、greaterThanOrEqualTo 匹配符表明如果所**测试的数值testedNumber大于等于16.0**则测试通过 assertThat( testedNumber, greaterThanOrEqualTo (16.0) ); 5、lessThanOrEqualTo 匹配符表明如果所**测试的数值testedNumber小于等于16.0**则测试通过 assertThat( testedNumber, lessThanOrEqualTo (16.0) ); **㈣ collection相关匹配符** 1、hasEntry 匹配符表明如果**测试的Map对象mapObject含有一个键值为"key"对应元素值为"value"的Entry项**则测试通过 assertThat( mapObject, hasEntry( "key", "value" ) ); 2、hasItem 匹配符表明如果**测试的迭代对象iterableObject含有元素“element”项**则测试通过 assertThat( iterableObject, hasItem ( "element" ) ); 3、hasKey 匹配符表明如果**测试的Map对象mapObject含有键值“key”**则测试通过 assertThat( mapObject, hasKey ( "key" ) ); 4、hasValue 匹配符表明如果**测试的Map对象mapObject含有元素值“value”**则测试通过 assertThat( mapObject, hasValue ( "key" ) ); 转自：[飘飘雪][Link 1] [Link 1]: https://www.cnblogs.com/wangcp-2014/p/4967055.html
还没有评论，来说两句吧...