测试--错误java.lang.Exception: No tests found matching [{ExactMatcher:fDisplayName=select], {ExactMatcher:fDisplayName=select(com.rjj.demo.DemoApplicationTests)]...

异常这个错误
java.lang.Exception: No tests found matching [{ExactMatcher:fDisplayName=select], {ExactMatcher:fDisplayName=select(com.rjj.demo.DemoApplicationTests)], 
{LeadingIdentifierMatcher:fClassName=com.rjj.demo.DemoApplicationTests,fLeadingIdentifier=select]] from org.junit.internal.requests.ClassRequest@38c6f217
    at org.junit.internal.requests.FilterRequest.getRunner(FilterRequest.java:40)
    at org.eclipse.jdt.internal.junit4.runner.JUnit4TestLoader.createFilteredTest(JUnit4TestLoader.java:83)
    at org.eclipse.jdt.internal.junit4.runner.JUnit4TestLoader.createTest(JUnit4TestLoader.java:74)
    at org.eclipse.jdt.internal.junit4.runner.JUnit4TestLoader.loadTests(JUnit4TestLoader.java:49)
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:525)
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:763)
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:463)
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:209)

代码是这里的，

其他方法都是对的，这里主要是缺少测试注解  @Test  加上就好了