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.runners.local;
  
  import static org.hamcrest.MatcherAssert.assertThat;
  import static org.junit.Assert.assertArrayEquals;
  
  import org.apache.beam.sdk.coders.ByteArrayCoder;
  import org.apache.beam.sdk.coders.StringUtf8Coder;
  import org.apache.beam.sdk.coders.VarIntCoder;
  import org.hamcrest.Matchers;
  import org.junit.Test;
  import org.junit.runner.RunWith;
  import org.junit.runners.JUnit4;
  
  /** Tests for {@link StructuralKey}. */
  @RunWith(JUnit4.class)
  public class StructuralKeyTest {
    @Test
    public void getKeyEqualToOldKey() {
      assertThat(StructuralKey.of(1234, VarIntCoder.of()).getKey(), Matchers.equalTo(1234));
      assertThat(
          StructuralKey.of("foobar", StringUtf8Coder.of()).getKey(), Matchers.equalTo("foobar"));
      assertArrayEquals(
          StructuralKey.of(new byte[] {2, 9, -22}, ByteArrayCoder.of()).getKey(),
          new byte[] {2, 9, -22});
    }
  
    @Test
    public void getKeyNotSameInstance() {
      byte[] original = new byte[] {1, 4, 9, 127, -22};
      StructuralKey<byte[]> key = StructuralKey.of(original, ByteArrayCoder.of());
  
      assertThat(key.getKey(), Matchers.not(Matchers.theInstance(original)));
    }
  
    @Test
    public void emptyKeysNotEqual() {
      StructuralKey<?> empty = StructuralKey.empty();
  
      assertThat(empty, Matchers.not(Matchers.equalTo(StructuralKey.empty())));
      assertThat(empty, Matchers.equalTo(empty));
    }
  
    @Test
    public void objectEqualsTrueKeyEquals() {
      StructuralKey<Integer> original = StructuralKey.of(1234, VarIntCoder.of());
      assertThat(StructuralKey.of(1234, VarIntCoder.of()), Matchers.equalTo(original));
    }
  
    @Test
    public void objectsNotEqualEncodingsEqualEquals() {
      byte[] original = new byte[] {1, 4, 9, 127, -22};
      StructuralKey<byte[]> key = StructuralKey.of(original, ByteArrayCoder.of());
  
      StructuralKey<byte[]> otherKey =
          StructuralKey.of(new byte[] {1, 4, 9, 127, -22}, ByteArrayCoder.of());
      assertThat(key, Matchers.equalTo(otherKey));
    }
  
    @Test
    public void notEqualEncodingsEqual() {
      byte[] original = new byte[] {1, 4, 9, 127, -22};
      StructuralKey<byte[]> key = StructuralKey.of(original, ByteArrayCoder.of());
  
      StructuralKey<byte[]> otherKey =
          StructuralKey.of(new byte[] {9, -128, 22}, ByteArrayCoder.of());
      assertThat(key, Matchers.not(Matchers.equalTo(otherKey)));
    }
  }
  