content: /*
   * 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 or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  package org.apache.beam.sdk.util;
  
  import static java.nio.charset.StandardCharsets.UTF_8;
  import static org.junit.Assert.assertEquals;
  
  import org.apache.beam.sdk.coders.Coder;
  import org.apache.beam.sdk.coders.StringUtf8Coder;
  import org.apache.beam.sdk.testing.CoderProperties;
  import org.junit.Test;
  
  public class ShardedKeyTest {
  
    private static final String KEY = "key";
    private static final byte[] EMPTY_SHARD = new byte[0];
    private static final byte[] SHARD = "shard_id".getBytes(UTF_8);
  
    @Test
    public void testStructuralValueEqual() throws Exception {
      Coder<ShardedKey<String>> coder = ShardedKey.Coder.of(StringUtf8Coder.of());
      CoderProperties.coderSerializable(coder);
      CoderProperties.structuralValueDecodeEncodeEqual(coder, ShardedKey.of(KEY, SHARD));
      CoderProperties.structuralValueDecodeEncodeEqual(coder, ShardedKey.of(KEY, EMPTY_SHARD));
      CoderProperties.structuralValueConsistentWithEquals(
          coder,
          ShardedKey.of(KEY, "shard_id".getBytes(UTF_8)),
          ShardedKey.of(KEY, "shard_id".getBytes(UTF_8)));
      CoderProperties.structuralValueConsistentWithEquals(
          coder, ShardedKey.of(KEY, new byte[0]), ShardedKey.of(KEY, new byte[0]));
    }
  
    @Test
    public void testDecodeEncodeEqual() throws Exception {
      Coder<ShardedKey<String>> coder = ShardedKey.Coder.of(StringUtf8Coder.of());
      CoderProperties.coderDecodeEncodeEqual(coder, ShardedKey.of(KEY, SHARD));
      CoderProperties.coderDecodeEncodeEqual(coder, ShardedKey.of(KEY, EMPTY_SHARD));
      CoderProperties.coderConsistentWithEquals(
          coder,
          ShardedKey.of(KEY, "shard_id".getBytes(UTF_8)),
          ShardedKey.of(KEY, "shard_id".getBytes(UTF_8)));
      CoderProperties.coderConsistentWithEquals(
          coder, ShardedKey.of(KEY, new byte[0]), ShardedKey.of(KEY, new byte[0]));
      CoderProperties.coderDeterministic(
          coder,
          ShardedKey.of(KEY, "shard_id".getBytes(UTF_8)),
          ShardedKey.of(KEY, "shard_id".getBytes(UTF_8)));
      CoderProperties.coderDeterministic(
          coder, ShardedKey.of(KEY, new byte[0]), ShardedKey.of(KEY, new byte[0]));
    }
  
    @Test
    public void testEquality() {
      assertEquals(ShardedKey.of("key", new byte[0]), ShardedKey.of("key", new byte[0]));
      assertEquals(
          ShardedKey.of("key", "shard_id".getBytes(UTF_8)),
          ShardedKey.of("key", "shard_id".getBytes(UTF_8)));
    }
  }
  