/*
 * Copyright Terracotta, Inc.
 *
 * Licensed 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 or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.ehcache.impl.internal.store.offheap;

import org.ehcache.impl.serialization.StringSerializer;
import org.junit.Before;
import org.junit.Test;

import java.nio.ByteBuffer;

import static org.hamcrest.Matchers.is;
import static org.junit.Assert.assertThat;

/**
 * BinaryOffHeapValueHolderTest
 */
public class BinaryOffHeapValueHolderTest {

  private String value;
  private StringSerializer serializer;
  private BinaryOffHeapValueHolder<String> valueHolder;

  @Before
  public void setUp() {
    serializer = new StringSerializer();
    value = "aValue";
    valueHolder = new BinaryOffHeapValueHolder<String>(-1, value, serializer.serialize(value), 0, 0, 0, 0);
  }

  @Test
  public void testCanAccessBinaryValue() throws ClassNotFoundException {
    assertThat(valueHolder.isBinaryValueAvailable(), is(true));
    ByteBuffer binaryValue = valueHolder.getBinaryValue();
    assertThat(serializer.read(binaryValue), is(value));
  }

  @Test
  public void testCanAccessValue() {
    assertThat(valueHolder.value(), is(value));
  }

  @Test(expected = UnsupportedOperationException.class)
  public void testCantBeDetached() {
    valueHolder.detach();
  }

  @Test(expected = UnsupportedOperationException.class)
  public void testCantUpdateMetadata() {
    valueHolder.updateMetadata(null);
  }

  @Test(expected = UnsupportedOperationException.class)
  public void testCantForceDeserialization() {
    valueHolder.forceDeserialization();
  }

  @Test(expected = UnsupportedOperationException.class)
  public void testCantWriteback() {
    valueHolder.writeBack();
  }
}