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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
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  package org.apache.beam.sdk.util.construction;
  
  import com.google.auto.service.AutoService;
  import org.apache.beam.model.pipeline.v1.RunnerApi;
  import org.apache.beam.sdk.util.construction.NativeTransforms.IsNativeTransform;
  import org.junit.Assert;
  import org.junit.Test;
  import org.junit.runner.RunWith;
  import org.junit.runners.JUnit4;
  
  /** Tests for {@link NativeTransforms}. */
  @RunWith(JUnit4.class)
  public class NativeTransformsTest {
    /** A test implementation of a {@link IsNativeTransform}. */
    @AutoService(IsNativeTransform.class)
    public static class TestNativeTransform implements IsNativeTransform {
  
      @Override
      public boolean test(RunnerApi.PTransform pTransform) {
        return "test".equals(PTransformTranslation.urnForTransformOrNull(pTransform));
      }
    }
  
    @Test
    public void testMatch() {
      Assert.assertTrue(
          NativeTransforms.isNative(
              RunnerApi.PTransform.newBuilder()
                  .setSpec(RunnerApi.FunctionSpec.newBuilder().setUrn("test").build())
                  .build()));
    }
  
    @Test
    public void testNoMatch() {
      Assert.assertFalse(NativeTransforms.isNative(RunnerApi.PTransform.getDefaultInstance()));
    }
  }
  