java.lang.IllegalStateException: Unable to find a @SpringBootConfiguration, you need to use @ContextConfiguration or @SpringBootTest(classes=...) with your test

写了一个单元测试test来启动activiti，controller放在src/main/java根目录下，test对应也放在src/test/java下，结果报错：

 1 java.lang.IllegalStateException: Unable to find a @SpringBootConfiguration, you need to use @ContextConfiguration or @SpringBootTest(classes=...) with your test
 2 at org.springframework.util.Assert.state(Assert.java:70)
 3 at org.springframework.boot.test.context.SpringBootTestContextBootstrapper.getOrFindConfigurationClasses(SpringBootTestContextBootstrapper.java:202)
 4 at org.springframework.boot.test.context.SpringBootTestContextBootstrapper.processMergedContextConfiguration(SpringBootTestContextBootstrapper.java:137)
 5 at org.springframework.test.context.support.AbstractTestContextBootstrapper.buildMergedContextConfiguration(AbstractTestContextBootstrapper.java:409)
 6 at org.springframework.test.context.support.AbstractTestContextBootstrapper.buildDefaultMergedContextConfiguration(AbstractTestContextBootstrapper.java:323)
 7 at org.springframework.test.context.support.AbstractTestContextBootstrapper.buildMergedContextConfiguration(AbstractTestContextBootstrapper.java:277)
 8 at org.springframework.test.context.support.AbstractTestContextBootstrapper.buildTestContext(AbstractTestContextBootstrapper.java:112)
 9 at org.springframework.boot.test.context.SpringBootTestContextBootstrapper.buildTestContext(SpringBootTestContextBootstrapper.java:82)
10 at org.springframework.test.context.TestContextManager.<init>(TestContextManager.java:120)
11 at org.springframework.test.context.TestContextManager.<init>(TestContextManager.java:105)
12 at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.createTestContextManager(SpringJUnit4ClassRunner.java:152)
13 at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.<init>(SpringJUnit4ClassRunner.java:143)
14 at org.springframework.test.context.junit4.SpringRunner.<init>(SpringRunner.java:49)
15 at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
16 at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source)
17 at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source)
18 at java.lang.reflect.Constructor.newInstance(Unknown Source)
19 at org.junit.internal.builders.AnnotatedBuilder.buildRunner(AnnotatedBuilder.java:104)
20 at org.junit.internal.builders.AnnotatedBuilder.runnerForClass(AnnotatedBuilder.java:86)
21 at org.junit.runners.model.RunnerBuilder.safeRunnerForClass(RunnerBuilder.java:59)
22 at org.junit.internal.builders.AllDefaultPossibilitiesBuilder.runnerForClass(AllDefaultPossibilitiesBuilder.java:26)
23 at org.junit.runners.model.RunnerBuilder.safeRunnerForClass(RunnerBuilder.java:59)
24 at org.junit.internal.requests.ClassRequest.getRunner(ClassRequest.java:33)
25 at org.eclipse.jdt.internal.junit4.runner.JUnit4TestLoader.createUnfilteredTest(JUnit4TestLoader.java:87)
26 at org.eclipse.jdt.internal.junit4.runner.JUnit4TestLoader.createTest(JUnit4TestLoader.java:73)
27 at org.eclipse.jdt.internal.junit4.runner.JUnit4TestLoader.loadTests(JUnit4TestLoader.java:46)
28 at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:523)
29 at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:761)
30 at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:461)
31 at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:207)