使用Power Mockito模拟静态方法，在其构造函数中返回带有dao实例的单例类

Question

我有一个单例类，该类在其私有构造函数中创建dao类的实例。这个单例类的实例是由服务类的静态方法返回的。我正在尝试使用超级模拟来模拟服务类。我得到了下面提到的错误。

下面是Singleton类：

public class UserFilterService extends AbstractService<UserFilterDAO,UserFilter {


    protected static UserFilterService instance = new UserFilterService();
    private UserFilterDAO UserFilterDAO;
    private UserFilterService() {
        userFilterDAO = new UserFilterDAOImpl();
    }
}

下面是Service类：

public class UserServiceFactory {
    public static UserFilterService getUserFilterService() {
        return UserFilterService.instance;
    }
}

我在pom.xml中具有的依赖项：

    <dependency>
        <groupId>org.powermock</groupId>
        <artifactId>powermock-mockito-release-full</artifactId>
        <version>1.6.4</version>
        <classifier>full</classifier>
    </dependency>

    <dependency>
        <groupId>org.powermock</groupId>
        <artifactId>powermock-api-mockito</artifactId>
        <version>1.6.4</version>
        <scope>test</scope>
    </dependency> 

   <dependency>
        <groupId>org.easymock</groupId>
        <artifactId>easymock</artifactId>
        <version>3.6</version>
        <scope>test</scope>
   </dependency>

我目前拥有的考试类别

@Before
public  void before() {
    SuppressCode.suppressConstructor(UserFilterService.class);
    PowerMockito.mockStatic(UserFilterService.class);
    UserFilterService mockAlarmFilterService = 
           EasyMock.createMock(UserFilterService.class);
    expect(UserFilterService.instance).andReturn(mockUserFilterService).anyTimes();
}

@Test
public void testgetuserFilterservice() {
    UserServiceFactorymocUserFactory=Mockito.mock(UserServiceFactory.class);

    when(mockEIBFactory.getuserFilterService()).thenReturn(mockUserFilterService);
}

这将显示以下错误：

java.lang.NoSuchMethodError:org.mockito.mock.MockCreationSettings.isUsingConstructor()Z
    at org.mockito.internal.creation.instance.InstantiatorProvider.getInstantiator(InstantiatorProvider.java:10)
    at org.powermock.api.mockito.internal.mockcreation.MockCreator.createMethodInvocationControl(MockCreator.java:111)
    at org.powermock.api.mockito.internal.mockcreation.MockCreator.mock(MockCreator.java:59)
    at org.powermock.api.mockito.PowerMockito.mockStatic(PowerMockito.java:70)
    at com.avaya.eib.dam.mgmt.EIBDataServiceFactoryTest.before(EIBDataServiceFactoryTest.java:31)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:483)
    at org.junit.internal.runners.MethodRoadie.runBefores(MethodRoadie.java:132)
    at org.junit.internal.runners.MethodRoadie.runBeforesThenTestThenAfters(MethodRoadie.java:95)
    at org.powermock.modules.junit4.internal.impl.PowerMockJUnit44RunnerDelegateImpl$PowerMockJUnit44MethodRunner.executeTest(PowerMockJUnit44RunnerDelegateImpl.java:294)
    at org.powermock.modules.junit4.internal.impl.PowerMockJUnit47RunnerDelegateImpl$PowerMockJUnit47MethodRunner.executeTestInSuper(PowerMockJUnit47RunnerDelegateImpl.java:127)
    at org.powermock.modules.junit4.internal.impl.PowerMockJUnit47RunnerDelegateImpl$PowerMockJUnit47MethodRunner.executeTest(PowerMockJUnit47RunnerDelegateImpl.java:82)
    at org.powermock.modules.junit4.internal.impl.PowerMockJUnit44RunnerDelegateImpl$PowerMockJUnit44MethodRunner.runBeforesThenTestThenAfters(PowerMockJUnit44RunnerDelegateImpl.java:282)
    at org.junit.internal.runners.MethodRoadie.runTest(MethodRoadie.java:86)
    at org.junit.internal.runners.MethodRoadie.run(MethodRoadie.java:49)
    at org.powermock.modules.junit4.internal.impl.PowerMockJUnit44RunnerDelegateImpl.invokeTestMethod(PowerMockJUnit44RunnerDelegateImpl.java:207)
    at org.powermock.modules.junit4.internal.impl.PowerMockJUnit44RunnerDelegateImpl.runMethods(PowerMockJUnit44RunnerDelegateImpl.java:146)
    at org.powermock.modules.junit4.internal.impl.PowerMockJUnit44RunnerDelegateImpl$1.run(PowerMockJUnit44RunnerDelegateImpl.java:120)
    at org.junit.internal.runners.ClassRoadie.runUnprotected(ClassRoadie.java:33)
    at org.junit.internal.runners.ClassRoadie.runProtected(ClassRoadie.java:45)
    at org.powermock.modules.junit4.internal.impl.PowerMockJUnit44RunnerDelegateImpl.run(PowerMockJUnit44RunnerDelegateImpl.java:122)
    at org.powermock.modules.junit4.common.internal.impl.JUnit4TestSuiteChunkerImpl.run(JUnit4TestSuiteChunkerImpl.java:106)
    at org.powermock.modules.junit4.common.internal.impl.AbstractCommonPowerMockRunner.run(AbstractCommonPowerMockRunner.java:53)
    at org.powermock.modules.junit4.PowerMockRunner.run(PowerMockRunner.java:59)
    at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:50)
    at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:459)
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:675)
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:382)
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:192)