JUnit ExpectedException 规则不起作用

Question

我有一个我应该测试的方法：

public void createNode(String name, String primaryNodeType, String[] mixinNodeTypes) throws RepositoryException {
    final Node parentNode = this.parentNodeStack.peek();
    boolean isParentImport = (name == null && isParentNodeImport);
    if (name == null) {
        if (this.parentNodeStack.size() > 1) {
            throw new RepositoryException("Node needs to have a name.");
        }
        name = this.defaultName;
    }
    //other stuff
}

在我的测试中，我输入了方法参数，哪个方法应该抛出 RepositoryException（第 6 行）。

@RunWith(JMock.class)
public class DefaultContentCreatorTest {

    static final String DEFAULT_NAME = "default-name";
    final Mockery mockery = new JUnit4Mockery();
    DefaultContentCreator contentCreator;

    Session session;
    Node parentNode;
    Property prop;

    @Rule
    public ExpectedException thrown = ExpectedException.none();

    @Before
    public void setup() throws Exception {
        final SlingRepository repo = RepositoryProvider.instance().getRepository();
        session = repo.loginAdministrative(null);
        contentCreator = new DefaultContentCreator(null);
        contentCreator.init(U.createImportOptions(true, true, true, false, false),
                new HashMap<String, ContentReader>(), null, null);
        parentNode = session.getRootNode().addNode(getClass().getSimpleName()).addNode(uniqueId());
    }

    @After
    public void cleanup() throws RepositoryException {
        if(session != null) {
            session.save();
            session.logout();
            session = null;
        }
    }

    @Test
    public void createNodeWithoutNameAndTwoInStack() throws RepositoryException {
        contentCreator.init(U.createImportOptions(true, true, true, false, false),
                new HashMap<String, ContentReader>(), null, null);
        //Making parentNodeStack.size() == 1
        contentCreator.prepareParsing(parentNode, DEFAULT_NAME);
        //Making parentNodeStack.size() == 2
        contentCreator.createNode(uniqueId(), null, null);

        //contentCreator.createNode method should now throw an exception
        thrown.expect(RepositoryException.class); //Doesn't work
        thrown.expectMessage("Node needs to have a name."); //Doesn't work
        contentCreator.createNode(null, null, null);
    }
}

但是，测试失败，正是这个 RepositoryException。我做错了什么？顺便说一句，如果我使用 @Test(expected = RepositoryException.class) 一切正常。

UPD：我正在为 Apache Sling 类之一编写单元测试。你可以看看这个班here UPD2：有一个失败的测试异常堆栈跟踪：

javax.jcr.RepositoryException: Node needs to have a name.
at org.apache.sling.jcr.contentloader.internal.DefaultContentCreator.createNode(DefaultContentCreator.java:225)
at org.apache.sling.jcr.contentloader.internal.DefaultContentCreatorTest.createNodeWithoutNameAndTwoInStack(DefaultContentCreatorTest.java:278)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at org.junit.internal.runners.TestMethod.invoke(TestMethod.java:68)
at org.jmock.integration.junit4.JMock$1.invoke(JMock.java:37)
at org.junit.internal.runners.MethodRoadie.runTestMethod(MethodRoadie.java:107)
at org.junit.internal.runners.MethodRoadie$2.run(MethodRoadie.java:88)
at org.junit.internal.runners.MethodRoadie.runBeforesThenTestThenAfters(MethodRoadie.java:96)
at org.junit.internal.runners.MethodRoadie.runTest(MethodRoadie.java:86)
at org.junit.internal.runners.MethodRoadie.run(MethodRoadie.java:49)
at org.junit.internal.runners.JUnit4ClassRunner.invokeTestMethod(JUnit4ClassRunner.java:100)
at org.junit.internal.runners.JUnit4ClassRunner.runMethods(JUnit4ClassRunner.java:61)
at org.junit.internal.runners.JUnit4ClassRunner$1.run(JUnit4ClassRunner.java:54)
at org.junit.internal.runners.ClassRoadie.runUnprotected(ClassRoadie.java:33)
at org.junit.internal.runners.ClassRoadie.runProtected(ClassRoadie.java:45)
at org.junit.internal.runners.JUnit4ClassRunner.run(JUnit4ClassRunner.java:52)
at org.junit.runner.JUnitCore.run(JUnitCore.java:160)
at com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:78)
at com.intellij.rt.execution.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:212)
at com.intellij.rt.execution.junit.JUnitStarter.main(JUnitStarter.java:68)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at com.intellij.rt.execution.application.AppMain.main(AppMain.java:140)

如您所见，它在第 278 行抛出异常，这是 contentCreator.createNode(null, null, null); 方法调用的行。

Answer 1

总结一下来自 cmets 的讨论：解决方案是删除JMock jUnit runner。

Answer 2

尝试将你的 throw.expect 放在你期望异常的实际调用之前

@Test
public void createNodeWithoutNameAndTwoInStack() throws RepositoryException {
    thrown.expect(RepositoryException.class); //Doesn't work
    thrown.expectMessage("Node needs to have a name."); //Doesn't work 

    contentCreator.init(U.createImportOptions(true, true, true, false, false),
            new HashMap<String, ContentReader>(), null, null);

    //Making parentNodeStack.size() == 1
    contentCreator.prepareParsing(parentNode, DEFAULT_NAME);

    //Making parentNodeStack.size() == 2
    contentCreator.createNode(uniqueId(), null, null);

    // method should now throw an exception
    contentCreator.createNode(null, null, null);
}