JUNIT参数化测试诡异问题：No tests found matching Method 测试方法(测试类) from org.junit.internal.requests.ClassR..

雨点打透心脏的1/2处 2024-04-18 21:41 87阅读 0赞

本文参考与

1： [https://www.iteye.com/blog/hedajia-2208403][https_www.iteye.com_blog_hedajia-2208403]

2： [https://stackoverflow.com/questions/12798079/initializationerror-with-eclipse-and-junit4-when-executing-a-single-test/18438718\#18438718][https_stackoverflow.com_questions_12798079_initializationerror-with-eclipse-and-junit4-when-executing-a-single-test_18438718_18438718]

JUNIT参数化测试，遇到的诡异问题

No tests found matching Method 测试方法名(测试类名) from org.junit.internal.request.ClassRequest@ibdecc21

解决方案：

重写 org.junit.runner.Parameterized

代码如下

public class B2bParameterized extends Parameterized {  
      
        public B2bParameterized (Class<?> klass) throws Throwable {  
            super(klass);  
        }  
      
        public void filter(Filter filter) throws NoTestsRemainException {  
            super.filter(new FilterDecorator(filter));  
        }  
      
       /** 
         * Running single test in case of parameterized test causes issue as explained in 
         * http://youtrack.jetbrains.com/issue/IDEA-65966 
         * 
         * As a workaround we wrap the original filter and then pass it a wrapped description 
         * which removes the parameter part (See deparametrizedName) 
         */  
        private static class FilterDecorator extends Filter {  
            private final Filter delegate;  
      
            private FilterDecorator(Filter delegate) {  
                this.delegate = delegate;  
            }  
      
            @Override  
            public boolean shouldRun(Description description) {  
                return delegate.shouldRun(wrap(description));  
            }  
      
            @Override  
            public String describe() {  
                return delegate.describe();  
            }  
        }  
      
        private static Description wrap(Description description) {  
            String name = description.getDisplayName();  
            String fixedName = deparametrizedName(name);  
            Description clonedDescription =  
                    Description.createSuiteDescription(fixedName,description.getAnnotations().toArray(new Annotation[0]));  
            for(Description child : description.getChildren()){  
                clonedDescription.addChild(wrap(child));  
            }  
            return clonedDescription;  
        }  
      
        private static String deparametrizedName(String name) {  
            //Each parameter is named as [0], [1] etc  
            if(name.startsWith("[")){  
                return name;  
            }  
      
            //Convert methodName[index](className) to  
            //methodName(className)  
            int indexOfOpenBracket = name.indexOf('[');  
            int indexOfCloseBracket = name.indexOf(']')+1;  
            return name.substring(0,indexOfOpenBracket).concat(name.substring(indexOfCloseBracket));  
        }  
    }

测试类：

@RunWith(PowerMockRunner.class)

@PowerMockRunnerDelegate(B2bParameterized.class)

参数方法

@B2bParameterized.Parameters

[https_www.iteye.com_blog_hedajia-2208403]: https://www.iteye.com/blog/hedajia-2208403
[https_stackoverflow.com_questions_12798079_initializationerror-with-eclipse-and-junit4-when-executing-a-single-test_18438718_18438718]: https://stackoverflow.com/questions/12798079/initializationerror-with-eclipse-and-junit4-when-executing-a-single-test/18438718#18438718