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   * 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.dataflow.worker;
  
  import static org.hamcrest.MatcherAssert.assertThat;
  import static org.hamcrest.core.IsInstanceOf.instanceOf;
  import static org.junit.Assert.assertEquals;
  
  import org.apache.beam.runners.dataflow.internal.IsmFormat;
  import org.apache.beam.runners.dataflow.internal.IsmFormat.IsmRecordCoder;
  import org.apache.beam.runners.dataflow.util.CloudObject;
  import org.apache.beam.runners.dataflow.util.CloudObjects;
  import org.apache.beam.runners.dataflow.util.PropertyNames;
  import org.apache.beam.sdk.coders.BigEndianIntegerCoder;
  import org.apache.beam.sdk.coders.BigEndianLongCoder;
  import org.apache.beam.sdk.coders.ByteArrayCoder;
  import org.apache.beam.sdk.coders.Coder;
  import org.apache.beam.sdk.coders.VarIntCoder;
  import org.apache.beam.sdk.coders.VoidCoder;
  import org.apache.beam.vendor.guava.v32_1_2_jre.com.google.common.collect.ImmutableList;
  import org.apache.beam.vendor.guava.v32_1_2_jre.com.google.common.collect.ImmutableMap;
  import org.junit.Test;
  import org.junit.runner.RunWith;
  import org.junit.runners.JUnit4;
  
  /** Tests for {@link RunnerHarnessCoderCloudObjectTranslatorRegistrar}. */
  @RunWith(JUnit4.class)
  public class RunnerHarnessCoderCloudObjectTranslatorRegistrarTest {
    @Test
    public void testCloudObjectToVarIntCoder() {
      Coder<?> coder =
          CloudObjects.coderFromCloudObject(
              CloudObject.fromSpec(
                  ImmutableMap.of(PropertyNames.OBJECT_TYPE_NAME, "kind:var_int32")));
      assertThat(coder, instanceOf(VarIntCoder.class));
    }
  
    @Test
    public void testCloudObjectToBigEndianIntegerCoder() {
      Coder<?> coder =
          CloudObjects.coderFromCloudObject(
              CloudObject.fromSpec(
                  ImmutableMap.of(PropertyNames.OBJECT_TYPE_NAME, "kind:fixed_big_endian_int32")));
      assertThat(coder, instanceOf(BigEndianIntegerCoder.class));
    }
  
    @Test
    public void testCloudObjectToBigEndianLongCoder() {
      Coder<?> coder =
          CloudObjects.coderFromCloudObject(
              CloudObject.fromSpec(
                  ImmutableMap.of(PropertyNames.OBJECT_TYPE_NAME, "kind:fixed_big_endian_int64")));
      assertThat(coder, instanceOf(BigEndianLongCoder.class));
    }
  
    @Test
    public void testCloudObjectToVoidCoder() {
      Coder<?> coder =
          CloudObjects.coderFromCloudObject(
              CloudObject.fromSpec(ImmutableMap.of(PropertyNames.OBJECT_TYPE_NAME, "kind:void")));
      assertThat(coder, instanceOf(VoidCoder.class));
    }
  
    @Test
    public void testCloudObjectToIsmRecordCoder() {
      Coder<?> coder =
          CloudObjects.coderFromCloudObject(
              CloudObject.fromSpec(
                  ImmutableMap.of(
                      PropertyNames.OBJECT_TYPE_NAME,
                      "kind:ism_record",
                      "num_shard_key_coders",
                      1L,
                      PropertyNames.COMPONENT_ENCODINGS,
                      ImmutableList.of(
                          ImmutableMap.of("@type", "kind:var_int32"),
                          ImmutableMap.of("@type", "kind:fixed_big_endian_int32"),
                          ImmutableMap.of("@type", "kind:bytes")))));
      assertThat(coder, instanceOf(IsmRecordCoder.class));
      IsmRecordCoder<?> ismRecordCoder = (IsmRecordCoder<?>) coder;
      assertEquals(1, ismRecordCoder.getNumberOfShardKeyCoders(ImmutableList.of()));
      // We expect 0 metadata shard key coders if it is unspecified.
      assertEquals(
          0, ismRecordCoder.getNumberOfShardKeyCoders(ImmutableList.of(IsmFormat.getMetadataKey())));
      assertEquals(
          ImmutableList.of(VarIntCoder.of(), BigEndianIntegerCoder.of(), ByteArrayCoder.of()),
          ismRecordCoder.getCoderArguments());
    }
  }
  