java - 如何在 PowerMockito 中模拟身份验证对象？

Question

请注意，这是一个 UNIT 测试，而不是集成测试，所以我不想要任何 Spring，实际上所有可以模拟的东西都应该是。

这段代码:

@RunWith(PowerMockRunner.class)
@PrepareForTest({...})
@PowerMockIgnore({
        "com.sun.crypto.*",
        "javax.crypto.*",
        "javax.management.*"})
public class TestClass {
...


@Test
public void testMethod (
          Authentication mockAuthentication = Mockito
                .mock(Authentication.class);  
  ) 
}

...抛出这个异常:

java.lang.LinkageError: loader constraint violation: loader (instance of org/powermock/core/classloader/MockClassLoader) previously initiated loading for a different type with name "javax/security/auth/Subject"

    at java.lang.ClassLoader.defineClass1(Native Method)
    at java.lang.ClassLoader.defineClass(ClassLoader.java:763)
    at org.powermock.core.classloader.MockClassLoader.loadUnmockedClass(MockClassLoader.java:262)
    at org.powermock.core.classloader.MockClassLoader.loadModifiedClass(MockClassLoader.java:206)
    at org.powermock.core.classloader.DeferSupportingClassLoader.loadClass1(DeferSupportingClassLoader.java:89)
    at org.powermock.core.classloader.DeferSupportingClassLoader.loadClass(DeferSupportingClassLoader.java:79)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
    at org.springframework.security.authentication.TestingAuthenticationToken$MockitoMock$2107019845.<clinit>(Unknown Source)
    at sun.reflect.GeneratedSerializationConstructorAccessor27.newInstance(Unknown Source)
    at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
    at org.objenesis.instantiator.sun.SunReflectionFactoryInstantiator.newInstance(SunReflectionFactoryInstantiator.java:48)
    at org.objenesis.ObjenesisBase.newInstance(ObjenesisBase.java:73)
    at org.mockito.internal.creation.instance.ObjenesisInstantiator.newInstance(ObjenesisInstantiator.java:18)
    at org.mockito.internal.creation.bytebuddy.SubclassByteBuddyMockMaker.createMock(SubclassByteBuddyMockMaker.java:47)
    at org.powermock.api.mockito.mockmaker.PowerMockMaker.createMock(PowerMockMaker.java:50)
    at org.mockito.internal.util.MockUtil.createMock(MockUtil.java:35)
    at org.mockito.internal.MockitoCore.mock(MockitoCore.java:63)
    at org.mockito.Mockito.mock(Mockito.java:1729)
    at org.mockito.Mockito.mock(Mockito.java:1642)

线索？我一直在尝试 StackOverflow 的各种方法，但还没有找到解决方案。PowerMockito 肯定使用这个类来发挥它的魔力，所以也许这是由 PowerMockito 加载的并且无法更改？

Answer 1

在这种情况下，属于javax.security 的类不会加载，因此您应该忽略@PowerMockIgnore 中的“javax.security.*”。它有效。