java - 创建带有 Mockito 错误的可序列化模拟

Question

我正在尝试使用 Mockito 创建一个可以序列化的模拟对象。该对象是一个接口(interface)实现。调用此方法时，我收到一个想要传递给另一个对象的对象，因此使用 doAnswer(...) 方法。 这是我的代码。

InterfaceClass obj = mock(InterfaceClass.class, withSettings().serializable());
    doAnswer(new Answer<Object>() {
        public Object answer(InvocationOnMock invocation) throws Throwable {
            Object[] args = invocation.getArguments();
            //Here I do something with the arguments
        }
    }).when(obj).someMethod(
            any(someObject.class));

    ByteArrayOutputStream bos = new ByteArrayOutputStream();
    ObjectOutput out = null;
    try {
      out = new ObjectOutputStream(bos);   
      out.writeObject(obj);
      byte[] yourBytes = bos.toByteArray();
    } finally {
      out.close();
      bos.close();
    }

据我所知，这应该是正确的(我对 Mockito 还很陌生)。 但是当序列化我的对象时，我收到此错误:

java.io.NotSerializableException: com.trust1t.ocs.signcore.test.InvalidInputTestCase$1
at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1165)
at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:329)
at java.util.concurrent.ConcurrentLinkedQueue.writeObject(ConcurrentLinkedQueue.java:644)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at java.io.ObjectStreamClass.invokeWriteObject(ObjectStreamClass.java:950)
at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1482)
at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1413)
at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1159)
at java.io.ObjectOutputStream.defaultWriteFields(ObjectOutputStream.java:1535)
at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1496)
at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1413)
at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1159)
at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:329)
at java.util.LinkedList.writeObject(LinkedList.java:943)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at java.io.ObjectStreamClass.invokeWriteObject(ObjectStreamClass.java:950)
at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1482)
at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1413)
at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1159)
at java.io.ObjectOutputStream.defaultWriteFields(ObjectOutputStream.java:1535)
at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1496)
at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1413)
at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1159)
at java.io.ObjectOutputStream.defaultWriteFields(ObjectOutputStream.java:1535)
at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1496)
at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1413)
at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1159)
at java.io.ObjectOutputStream.defaultWriteFields(ObjectOutputStream.java:1535)
at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1496)
at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1413)
at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1159)
at java.io.ObjectOutputStream.defaultWriteFields(ObjectOutputStream.java:1535)
at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1496)
at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1413)
at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1159)
at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:329)
at com.trust1t.ocs.signcore.test.InvalidInputTestCase.certificateValidationTest(InvalidInputTestCase.java:117)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:47)
at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:44)
at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:271)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:70)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:50)
at org.junit.runners.ParentRunner$3.run(ParentRunner.java:238)
at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:63)
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:236)
at org.junit.runners.ParentRunner.access$000(ParentRunner.java:53)
at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:229)
at org.junit.runners.ParentRunner.run(ParentRunner.java:309)
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:467)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:683)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:390)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:197)

invalidInputTestCase 类是包含我使用此代码的测试的类。看起来好像模拟对象在某处引用了这个 TestCase(虽然找不到它)。 我是否没有正确实现这个或更好的想法来 mock ？

Answer 1

如果您想序列化模拟，则所有内容都需要可序列化，包括Answer。

实际上这就是 JDK 告诉您的内容:

java.io.NotSerializableException: com.trust1t.ocs.signcore.test.InvalidInputTestCase$1

其中 InvalidInputTestCase$1 是匿名 Answer 的名称。 要使其可序列化，您必须创建一个实现 Answer 和 Serialized 的类。

另请注意，跨类加载器(JVM)的序列化尚未发布，目前您只能在同一类加载器中序列化和反序列化模拟。