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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.
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  package org.apache.beam.sdk.nexmark;
  
  import static org.apache.beam.sdk.nexmark.NexmarkUtils.ResourceNameMode.QUERY;
  import static org.apache.beam.sdk.nexmark.NexmarkUtils.ResourceNameMode.QUERY_AND_SALT;
  import static org.apache.beam.sdk.nexmark.NexmarkUtils.ResourceNameMode.QUERY_RUNNER_AND_MODE;
  import static org.apache.beam.sdk.nexmark.NexmarkUtils.ResourceNameMode.VERBATIM;
  import static org.junit.Assert.assertEquals;
  
  import java.util.Random;
  import java.util.stream.Collectors;
  import java.util.stream.LongStream;
  import org.apache.beam.sdk.Pipeline;
  import org.apache.beam.sdk.PipelineResult;
  import org.apache.beam.sdk.PipelineRunner;
  import org.apache.beam.sdk.io.FileSystems;
  import org.apache.beam.sdk.io.fs.ResourceId;
  import org.apache.beam.sdk.options.PipelineOptionsFactory;
  import org.apache.beam.sdk.testing.PAssert;
  import org.apache.beam.sdk.testing.TestPipeline;
  import org.apache.beam.sdk.values.KV;
  import org.apache.beam.sdk.values.PCollection;
  import org.junit.Rule;
  import org.junit.Test;
  import org.junit.runner.RunWith;
  import org.junit.runners.JUnit4;
  
  /** Tests the {@link NexmarkUtils}. */
  @RunWith(JUnit4.class)
  @SuppressWarnings({
    "rawtypes", // TODO(https://github.com/apache/beam/issues/20447)
  })
  public class NexmarkUtilsTest {
  
    @Rule public TestPipeline pipeline = TestPipeline.create();
  
    @Test
    public void testPrepareCsvSideInput() throws Exception {
      NexmarkConfiguration config = NexmarkConfiguration.DEFAULT.copy();
      config.sideInputType = NexmarkUtils.SideInputType.CSV;
      ResourceId sideInputResourceId =
          FileSystems.matchNewResource(
              String.format(
                  "%s/JoinToFiles-%s",
                  pipeline.getOptions().getTempLocation(), new Random().nextInt()),
              false);
      config.sideInputUrl = sideInputResourceId.toString();
      config.sideInputRowCount = 10000;
      config.sideInputNumShards = 15;
  
      PCollection<KV<Long, String>> sideInput = NexmarkUtils.prepareSideInput(pipeline, config);
      try {
        PAssert.that(sideInput)
            .containsInAnyOrder(
                LongStream.range(0, config.sideInputRowCount)
                    .boxed()
                    .map(l -> KV.of(l, l.toString()))
                    .collect(Collectors.toList()));
        pipeline.run();
      } finally {
        NexmarkUtils.cleanUpSideInput(config);
      }
    }
  
    @Test
    public void testFullQueryNameAppendsLanguageIfNeeded() {
      String fullName = NexmarkUtils.fullQueryName("sql", "1");
      assertEquals("1_sql", fullName);
    }
  
    @Test
    public void testFullQueryNameDoesntContainNullLanguage() {
      String fullName = NexmarkUtils.fullQueryName(null, "1");
      assertEquals("1", fullName);
    }
  
    @Test
    public void testTableName() {
      String table = "nexmark";
      String query = "query";
      long salt = 1111;
      String version = "version";
      Class runner = Runner.class;
      boolean isStreaming = true;
  
      testTableName(VERBATIM, table, query, salt, version, runner, isStreaming, "nexmark_version");
  
      testTableName(QUERY, table, query, salt, version, runner, isStreaming, "nexmark_query_version");
  
      testTableName(
          QUERY_AND_SALT,
          table,
          query,
          salt,
          version,
          runner,
          isStreaming,
          "nexmark_query_version_1111");
  
      testTableName(
          QUERY_RUNNER_AND_MODE,
          table,
          query,
          salt,
          version,
          runner,
          isStreaming,
          "nexmark_query_Runner_streaming_version");
  
      testTableName(
          QUERY_RUNNER_AND_MODE,
          table,
          query,
          salt,
          version,
          runner,
          !isStreaming,
          "nexmark_query_Runner_batch_version");
  
      testTableName(
          QUERY_RUNNER_AND_MODE,
          table,
          query,
          salt,
          null,
          runner,
          isStreaming,
          "nexmark_query_Runner_streaming");
    }
  
    private void testTableName(
        NexmarkUtils.ResourceNameMode nameMode,
        String baseTableName,
        String queryName,
        Long salt,
        String version,
        Class runner,
        Boolean isStreaming,
        final String expected) {
      NexmarkOptions options = PipelineOptionsFactory.as(NexmarkOptions.class);
      options.setResourceNameMode(nameMode);
      options.setBigQueryTable(baseTableName);
      options.setRunner(runner);
      options.setStreaming(isStreaming);
  
      String tableName = NexmarkUtils.tableName(options, queryName, salt, version);
  
      assertEquals(expected, tableName);
    }
  
    private static class Runner extends PipelineRunner<PipelineResult> {
  
      private Runner() {}
  
      @Override
      public PipelineResult run(Pipeline pipeline) {
        return null;
      }
    }
  }
  