JUnit4: java.lang.Exception: No tests found matching

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本文解析了在使用JUnit4进行单元测试时遇到的Notestsfoundmatching异常，详细介绍了两种常见原因：一是未正确标注@Test注解；二是未引入JUnit4依赖包。

关于测试时出现 No tests found matching 的Exception的原因（暂时出现的情况）：

java.lang.Exception: No tests found matching [{ExactMatcher:fDisplayName=testCon2],
{ExactMatcher:fDisplayName=testCon2(com._520it.spring.day1.container.ContainerTest)],
{LeadingIdentifierMatcher:fClassName=com._520it.spring.day1.container.ContainerTest,fLeadingIdentifier=testCon2]]
from org.junit.internal.requests.ClassRequest@6af9fcb2
     at org.junit.internal.requests.FilterRequest.getRunner(FilterRequest.java:40)
     at org.eclipse.jdt.internal.junit4.runner.JUnit4TestLoader.createFilteredTest(JUnit4TestLoader.java:77)
     at org.eclipse.jdt.internal.junit4.runner.JUnit4TestLoader.createTest(JUnit4TestLoader.java:68)
     at org.eclipse.jdt.internal.junit4.runner.JUnit4TestLoader.loadTests(JUnit4TestLoader.java:43)
     at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:444)
     at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:678)
     at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:382)
     at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:192) No tests found matching [{ExactMatcher:fDisplayName=testCon2],
{ExactMatcher:fDisplayName=testCon2(com._520it.spring.day1.container.ContainerTest)],
{LeadingIdentifierMatcher:fClassName=com._520it.spring.day1.container.ContainerTest,fLeadingIdentifier=testCon2]]
from org.junit.internal.requests.ClassRequest@6af9fcb2
     at org.junit.internal.requests.FilterRequest.getRunner(FilterRequest.java:40)
     at org.eclipse.jdt.internal.junit4.runner.JUnit4TestLoader.createFilteredTest(JUnit4TestLoader.java:77)
     at org.eclipse.jdt.internal.junit4.runner.JUnit4TestLoader.createTest(JUnit4TestLoader.java:68)
     at org.eclipse.jdt.internal.junit4.runner.JUnit4TestLoader.loadTests(JUnit4TestLoader.java:43)
     at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:444)
     at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:678)
     at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:382)
     at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:192)

原因：

1）在JUnit4下，没有写 @Test 所以无法找到test

2）没有添加 JUnit4包等