content: /*
   * Copyright (C) 2018 The Android Open Source Project
   *
   * 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.android.server.backup.encryption.chunk;
  
  import static com.google.common.truth.Truth.assertThat;
  
  import android.platform.test.annotations.Presubmit;
  
  import com.google.common.primitives.Bytes;
  
  import org.junit.Test;
  import org.junit.runner.RunWith;
  import org.robolectric.RobolectricTestRunner;
  
  @RunWith(RobolectricTestRunner.class)
  @Presubmit
  public class EncryptedChunkOrderingTest {
      private static final byte[] TEST_BYTE_ARRAY_1 = new byte[] {1, 2, 3, 4, 5};
      private static final byte[] TEST_BYTE_ARRAY_2 = new byte[] {5, 4, 3, 2, 1};
  
      @Test
      public void testEncryptedChunkOrdering_returnsValue() {
          EncryptedChunkOrdering encryptedChunkOrdering =
                  EncryptedChunkOrdering.create(TEST_BYTE_ARRAY_1);
  
          byte[] bytes = encryptedChunkOrdering.encryptedChunkOrdering();
  
          assertThat(bytes)
                  .asList()
                  .containsExactlyElementsIn(Bytes.asList(TEST_BYTE_ARRAY_1))
                  .inOrder();
      }
  
      @Test
      public void testEquals() {
          EncryptedChunkOrdering chunkOrdering1 = EncryptedChunkOrdering.create(TEST_BYTE_ARRAY_1);
          EncryptedChunkOrdering equalChunkOrdering1 =
                  EncryptedChunkOrdering.create(TEST_BYTE_ARRAY_1);
          EncryptedChunkOrdering chunkOrdering2 = EncryptedChunkOrdering.create(TEST_BYTE_ARRAY_2);
  
          assertThat(chunkOrdering1).isEqualTo(equalChunkOrdering1);
          assertThat(chunkOrdering1).isNotEqualTo(chunkOrdering2);
      }
  
      @Test
      public void testHashCode() {
          EncryptedChunkOrdering chunkOrdering1 = EncryptedChunkOrdering.create(TEST_BYTE_ARRAY_1);
          EncryptedChunkOrdering equalChunkOrdering1 =
                  EncryptedChunkOrdering.create(TEST_BYTE_ARRAY_1);
          EncryptedChunkOrdering chunkOrdering2 = EncryptedChunkOrdering.create(TEST_BYTE_ARRAY_2);
  
          int hash1 = chunkOrdering1.hashCode();
          int equalHash1 = equalChunkOrdering1.hashCode();
          int hash2 = chunkOrdering2.hashCode();
  
          assertThat(hash1).isEqualTo(equalHash1);
          assertThat(hash1).isNotEqualTo(hash2);
      }
  }
  