generator/src/test/java/com/google/archivepatcher/generator/ByteArrayHolderTest.java

// Copyright 2016 Google Inc. All rights reserved.
//
// 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 com.google.archivepatcher.generator;

import org.junit.Assert;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.junit.runners.JUnit4;

/**
 * Tests for {@link ByteArrayHolder}.
 */
@RunWith(JUnit4.class)
@SuppressWarnings("javadoc")
public class ByteArrayHolderTest {

  @Test
  public void testGetters() {
    byte[] data = "hello world".getBytes();
    ByteArrayHolder byteArrayHolder = new ByteArrayHolder(data);
    Assert.assertSame(data, byteArrayHolder.getData());
  }

  @Test
  public void testHashCode() {
    byte[] data1a = "hello world".getBytes();
    byte[] data1b = new String("hello world").getBytes();
    byte[] data2 = "hello another world".getBytes();
    ByteArrayHolder rawText1a = new ByteArrayHolder(data1a);
    ByteArrayHolder rawText1b = new ByteArrayHolder(data1b);
    Assert.assertEquals(rawText1a.hashCode(), rawText1b.hashCode());
    ByteArrayHolder rawText2 = new ByteArrayHolder(data2);
    Assert.assertNotEquals(rawText1a.hashCode(), rawText2.hashCode());
    ByteArrayHolder rawText3 = new ByteArrayHolder(null);
    Assert.assertNotEquals(rawText1a.hashCode(), rawText3.hashCode());
    Assert.assertNotEquals(rawText2.hashCode(), rawText3.hashCode());
  }

  @Test
  public void testEquals() {
    byte[] data1a = "hello world".getBytes();
    byte[] data1b = new String("hello world").getBytes();
    byte[] data2 = "hello another world".getBytes();
    ByteArrayHolder rawText1a = new ByteArrayHolder(data1a);
    Assert.assertEquals(rawText1a, rawText1a);
    ByteArrayHolder rawText1b = new ByteArrayHolder(data1b);
    Assert.assertEquals(rawText1a, rawText1b);
    ByteArrayHolder rawText2 = new ByteArrayHolder(data2);
    Assert.assertNotEquals(rawText1a, rawText2);
    ByteArrayHolder rawText3 = new ByteArrayHolder(null);
    Assert.assertNotEquals(rawText1a, rawText3);
    Assert.assertNotEquals(rawText3, rawText1a);
    Assert.assertNotEquals(rawText1a, 42);
    Assert.assertNotEquals(rawText1a, null);
  }
}