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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.Matchers.instanceOf;
  import static org.mockito.Mockito.when;
  
  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.runners.dataflow.worker.DataflowExecutionContext.DataflowStepContext;
  import org.apache.beam.runners.dataflow.worker.util.WorkerPropertyNames;
  import org.apache.beam.runners.dataflow.worker.util.common.worker.ParDoFn;
  import org.apache.beam.sdk.coders.BigEndianIntegerCoder;
  import org.apache.beam.sdk.transforms.windowing.GlobalWindow;
  import org.apache.beam.sdk.values.WindowedValues;
  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;
  import org.mockito.Mockito;
  
  /** Tests for {@link StreamingPCollectionViewWriterDoFnFactory}. */
  @RunWith(JUnit4.class)
  @SuppressWarnings({
    "rawtypes", // TODO(https://github.com/apache/beam/issues/20447)
  })
  public class StreamingPCollectionViewWriterDoFnFactoryTest {
    @Test
    public void testConstruction() throws Exception {
      DataflowOperationContext mockOperationContext = Mockito.mock(DataflowOperationContext.class);
      DataflowExecutionContext mockExecutionContext = Mockito.mock(DataflowExecutionContext.class);
      DataflowStepContext mockStepContext =
          Mockito.mock(StreamingModeExecutionContext.StepContext.class);
      when(mockExecutionContext.getStepContext(mockOperationContext)).thenReturn(mockStepContext);
  
      CloudObject coder =
          CloudObjects.asCloudObject(
              WindowedValues.getFullCoder(BigEndianIntegerCoder.of(), GlobalWindow.Coder.INSTANCE),
              /*sdkComponents=*/ null);
      ParDoFn parDoFn =
          new StreamingPCollectionViewWriterDoFnFactory()
              .create(
                  null /* pipeline options */,
                  CloudObject.fromSpec(
                      ImmutableMap.of(
                          PropertyNames.OBJECT_TYPE_NAME,
                          "StreamingPCollectionViewWriterDoFn",
                          PropertyNames.ENCODING,
                          coder,
                          WorkerPropertyNames.SIDE_INPUT_ID,
                          "test-side-input-id")),
                  null /* side input infos */,
                  null /* main output tag */,
                  null /* output tag to receiver index */,
                  mockExecutionContext,
                  mockOperationContext);
      assertThat(parDoFn, instanceOf(StreamingPCollectionViewWriterParDoFn.class));
    }
  }
  