与PowerMockito TestNG的Spring集成测试导致ClassCastExcure

Question

我试图在与TestNG的集成测试中用PowerMockito模拟一个静态方法，但迄今为止没有乐趣。

@ContextConfiguration(locations = {"classpath:applicationContextTest.xml"})
@DatabaseSetup("/my/project/dataset.xml")
@PrepareForTest({Calendars.class})
@Transactional
@TransactionConfiguration(defaultRollback = true)
public class SomeIntegrationTest {

    @ObjectFactory
    public IObjectFactory getObjectFactory() {
        return new PowerMockObjectFactory();
    }

    @BeforeMethod
    public void init() throws Exception {
        MockitoAnnotations.initMocks(this);
    }

    @Test
    public void testOne() {
        // Mock date now
        Calendar now = Calendar.getInstance();
        now.setTime(DateUtil.getDate(2014, Calendar.DECEMBER, 17));
        Calendars.CalendarMutator nowCalMut = Calendars.mutate(now);
        PowerMockito.mockStatic(Calendars.class);
        PowerMockito.spy(Calendars.class);
        PowerMockito.when(Calendars.now()).thenReturn(nowCalMut);
    }
}

这种模拟机制在单元测试中有效，但在集成测试中无效。我得到以下错误：

java.lang.IllegalStateException: Failed to load ApplicationContext at org.springframework.test.context.TestContext.getApplicationContext(TestContext.java:308) at org.springframework.test.context.support.DependencyInjectionTestExecutionListener.injectDependencies(DependencyInjectionTestExecutionListener.java:109)
Caused by: javax.xml.parsers.FactoryConfigurationError: Provider com.sun.org.apache.xerces.internal.jaxp.DocumentBuilderFactoryImpl could not be instantiated: java.lang.ClassCastException: com.sun.org.apache.xerces.internal.jaxp.DocumentBuilderFactoryImpl cannot be cast to javax.xml.parsers.DocumentBuilderFactory
Caused by: java.lang.ClassCastException: com.sun.org.apache.xerces.internal.jaxp.DocumentBuilderFactoryImpl cannot be cast to javax.xml.parsers.DocumentBuilderFactory at javax.xml.parsers.FactoryFinder.newInstance(FactoryFinder.java:190)

根据本页，您可以/应该使用@PowerMockIgnore注释来消除类加载器问题。我尝试了几种（随机）组合（当然，一次一种）：

@PowerMockIgnore({"org.w3c.dom.*", "javax.xml.*", "org.xml.*"})

我更进一步：

java.lang.IllegalStateException: Failed to load ApplicationContext at org.springframework.test.context.TestContext.getApplicationContext(TestContext.java:308) at org.springframework.test.context.support.DependencyInjectionTestExecutionListener
Caused by: org.springframework.beans.factory.parsing.BeanDefinitionParsingException: Configuration problem: Failed to import bean definitions from relative location [jaxws-clients.xml]
Offending resource: class path resource [applicationContextTest.xml]; nested exception is org.springframework.beans.factory.BeanDefinitionStoreException: Unexpected exception parsing XML document from class path resource [jaxws-clients.xml]; nested exception is org.springframework.beans.FatalBeanException: Class [org.apache.cxf.jaxws.spring.NamespaceHandler] for namespace [http://cxf.apache.org/jaxws] does not implement the [org.springframework.beans.factory.xml.NamespaceHandler] interface

但这看起来像是一场自由式变化的大雁追逐：

@PowerMockIgnore({"org.w3c.*", "javax.xml.*", "org.xml.*", "org.apache.*", "org.w3c.dom.*", "org.apache.cxf.*"}

其他资源建议使用@规则，但如果我没弄错的话，这是针对JUnit的，我正在使用TestNG。

有没有关于如何使这项工作的建议？

• Powermockito 1.4.9
• Spring3.0.5
• 测试6.0.1

2年后编辑：我已经从这个项目中退休很久了。两年后，使用不同的堆栈（grailsgeb和SPOCK），模拟静态数据仍然很困难，特别是在集成测试中，您可能根本不应该模拟任何东西。反正我再也不那样做了。相反，我将Date（或LocalDate）作为参数（传递给服务方法），或者简单地将测试数据集构建为相对于现在的。




Answer 1

这只是一个粗略的猜测，但我没有看到使用了@RunWith（PowerMockRunner.class）的任何注释，这应该会有所帮助。另外，请确保您使用的是PowerMock的最新版本，撰写本文时的版本是：1.6。6