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.flink.translation.wrappers;
  
  import org.apache.beam.runners.flink.metrics.FlinkMetricContainer;
  import org.apache.beam.sdk.io.BoundedSource;
  import org.apache.beam.sdk.io.CountingSource;
  import org.apache.beam.sdk.options.PipelineOptions;
  import org.apache.beam.sdk.options.PipelineOptionsFactory;
  import org.apache.flink.api.common.functions.RuntimeContext;
  import org.junit.Test;
  import org.mockito.Mockito;
  import org.powermock.reflect.Whitebox;
  
  /** Tests for {@link SourceInputFormat}. */
  @SuppressWarnings({
    "rawtypes" // TODO(https://github.com/apache/beam/issues/20447)
  })
  public class SourceInputFormatTest {
  
    @Test
    public void testAccumulatorRegistrationOnOperatorClose() throws Exception {
      SourceInputFormat<Long> sourceInputFormat =
          new TestSourceInputFormat<>(
              "step", CountingSource.upTo(10), PipelineOptionsFactory.create());
  
      sourceInputFormat.open(sourceInputFormat.createInputSplits(1)[0]);
  
      String metricContainerFieldName = "metricContainer";
      FlinkMetricContainer monitoredContainer =
          Mockito.spy(
              (FlinkMetricContainer)
                  Whitebox.getInternalState(sourceInputFormat, metricContainerFieldName));
      Whitebox.setInternalState(sourceInputFormat, metricContainerFieldName, monitoredContainer);
  
      sourceInputFormat.close();
      Mockito.verify(monitoredContainer).registerMetricsForPipelineResult();
    }
  
    private static class TestSourceInputFormat<T> extends SourceInputFormat<T> {
  
      public TestSourceInputFormat(
          String stepName, BoundedSource initialSource, PipelineOptions options) {
        super(stepName, initialSource, options);
      }
  
      @Override
      public RuntimeContext getRuntimeContext() {
        return Mockito.mock(RuntimeContext.class);
      }
    }
  }
  