geode-core/src/test/java/org/apache/geode/internal/cache/tier/sockets/ObjectPartListJUnitTest.java

/*
 * Licensed to the Apache Software Foundation (ASF) under one or more contributor license
 * agreements. See the NOTICE file distributed with this work for additional information regarding
 * copyright ownership. The ASF licenses this file to You under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance with the License. You may obtain a
 * copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software distributed under the License
 * is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
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package org.apache.geode.internal.cache.tier.sockets;

import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertNull;

import java.io.IOException;
import java.util.List;

import org.junit.Test;
import org.junit.experimental.categories.Category;

import org.apache.geode.CopyHelper;
import org.apache.geode.internal.util.BlobHelper;
import org.apache.geode.test.junit.categories.ClientServerTest;

@Category({ClientServerTest.class})
public class ObjectPartListJUnitTest {

  @Test
  public void testValueAsObject() throws Exception {
    VersionedObjectList list = new VersionedObjectList(100, false, false);
    byte[] normalBytes = "value1".getBytes();
    list.addObjectPart("key", normalBytes, false, null);
    list.addObjectPart("key", "value2", true, null);
    byte[] serializedObjectBytes = BlobHelper.serializeToBlob("value3");
    list.addObjectPart("key", serializedObjectBytes, true, null);
    list.addExceptionPart("key", new AssertionError("hello"));
    list.addObjectPartForAbsentKey("key", null);

    // Create a clone of the this.
    VersionedObjectList newList = CopyHelper.copy(list);

    checkObjectValues(newList);

    // THIS TEST FAILS! ObjectPartArrayList doesn't
    // preserve all its state when it is serialized (it loses track of type information
    // for values of type BYTES by writing the type info as OBJECT). However,
    // we'll have to leave it to avoid breaking old clients.
    // create another copy, just to double check
    // newList = CopyHelper.copy(newList);
    //
    // checkObjectValues(newList);

  }

  private void checkObjectValues(ObjectPartList newList) {
    assertEquals(5, newList.size());
    assertNull(newList.getKeysForTest());
    List values = newList.getObjects();
    assertEquals("value1", new String((byte[]) values.get(0)));
    assertEquals("value2", values.get(1));
    assertEquals("value3", values.get(2));
    assertEquals(new AssertionError("hello"), values.get(3));
    assertNull(values.get(4));
  }

  @Test
  public void testValueAsObjectByteArray() throws Exception {
    ObjectPartList list = new VersionedObjectList(100, false, false, true);
    byte[] normalBytes = "value1".getBytes();
    list.addObjectPart("key", normalBytes, false, null);
    list.addObjectPart("key", "value2", true, null);
    byte[] serializedObjectBytes = BlobHelper.serializeToBlob("value3");
    list.addObjectPart("key", serializedObjectBytes, true, null);
    list.addExceptionPart("key", new AssertionError("hello"));
    list.addObjectPartForAbsentKey("key", null);

    // Create a clone of the this list.
    ObjectPartList newList = CopyHelper.copy(list);

    checkSerializedValues(newList);

    // Create another copy, just to double check
    // all the info was perserved
    newList = CopyHelper.copy(newList);

    checkSerializedValues(newList);
  }

  private void checkSerializedValues(ObjectPartList newList)
      throws IOException, ClassNotFoundException {
    assertEquals(5, newList.size());
    assertNull(newList.getKeysForTest());
    List values = newList.getObjects();
    assertEquals("value1", new String((byte[]) values.get(0)));
    assertEquals("value2", BlobHelper.deserializeBlob((byte[]) values.get(1)));
    assertEquals("value3", BlobHelper.deserializeBlob((byte[]) values.get(2)));
    assertEquals(new AssertionError("hello"), values.get(3));
    assertNull(values.get(4));
  }

  private static class AssertionError extends Exception {

    public AssertionError(String message) {
      super(message);
    }

    @Override
    public boolean equals(Object o) {
      if (!(o instanceof AssertionError)) {
        return false;
      }
      if (!((AssertionError) o).getMessage().equals(getMessage())) {
        return false;
      }
      return true;
    }
  }
}