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.kafka.tools;
  
  import org.apache.kafka.clients.consumer.ConsumerConfig;
  import org.apache.kafka.common.utils.Exit;
  
  import org.junit.jupiter.api.AfterEach;
  import org.junit.jupiter.api.BeforeEach;
  import org.junit.jupiter.api.Test;
  import org.junit.jupiter.api.io.TempDir;
  
  import java.io.File;
  import java.io.IOException;
  import java.io.PrintWriter;
  import java.nio.file.Files;
  import java.nio.file.Path;
  import java.text.SimpleDateFormat;
  
  import static org.junit.jupiter.api.Assertions.assertEquals;
  import static org.junit.jupiter.api.Assertions.assertTrue;
  
  public class ShareConsumerPerformanceTest {
      private final ToolsTestUtils.MockExitProcedure exitProcedure = new ToolsTestUtils.MockExitProcedure();
      private final SimpleDateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss:SSS");
  
      @TempDir
      static Path tempDir;
  
      @BeforeEach
      public void beforeEach() {
          Exit.setExitProcedure(exitProcedure);
      }
  
      @AfterEach
      public void afterEach() {
          Exit.resetExitProcedure();
      }
  
      @Test
      public void testHeaderMatchBody() {
          testHeaderMatchContent(2,
              () -> ShareConsumerPerformance.printShareConsumerProgress(1024 * 1024, 0, 1, 0, 0, 1, dateFormat, 1));
      }
  
      @Test
      public void testConfigBootStrapServer() {
          String[] args = new String[]{
              "--bootstrap-server", "localhost:9092",
              "--topic", "test",
              "--messages", "10",
              "--print-metrics"
          };
  
          ShareConsumerPerformance.ShareConsumerPerfOptions config = new ShareConsumerPerformance.ShareConsumerPerfOptions(args);
  
          assertEquals("localhost:9092", config.brokerHostsAndPorts());
          assertTrue(config.topic().contains("test"));
          assertEquals(10, config.numMessages());
      }
  
      @Test
      public void testConfigWithUnrecognizedOption() {
          String[] args = new String[]{
              "--bootstrap-server", "localhost:9092",
              "--topic", "test",
              "--messages", "10",
              "--new-share-consumer"
          };
  
          String err = ToolsTestUtils.captureStandardErr(() -> new ShareConsumerPerformance.ShareConsumerPerfOptions(args));
  
          assertTrue(err.contains("new-share-consumer is not a recognized option"));
      }
  
      @Test
      public void testClientIdOverride() throws IOException {
          File tempFile = Files.createFile(tempDir.resolve("test_share_consumer_config.conf")).toFile();
          try (PrintWriter output = new PrintWriter(Files.newOutputStream(tempFile.toPath()))) {
              output.println("client.id=share-consumer-1");
              output.flush();
          }
  
          String[] args = new String[]{
              "--bootstrap-server", "localhost:9092",
              "--topic", "test",
              "--messages", "10",
              "--consumer.config", tempFile.getAbsolutePath()
          };
  
          ShareConsumerPerformance.ShareConsumerPerfOptions config = new ShareConsumerPerformance.ShareConsumerPerfOptions(args);
  
          assertEquals("share-consumer-1", config.props().getProperty(ConsumerConfig.CLIENT_ID_CONFIG));
      }
  
      @Test
      public void testDefaultClientId() throws IOException {
          String[] args = new String[]{
              "--bootstrap-server", "localhost:9092",
              "--topic", "test",
              "--messages", "10"
          };
  
          ShareConsumerPerformance.ShareConsumerPerfOptions config = new ShareConsumerPerformance.ShareConsumerPerfOptions(args);
  
          assertEquals("perf-share-consumer-client", config.props().getProperty(ConsumerConfig.CLIENT_ID_CONFIG));
      }
  
      private void testHeaderMatchContent(int expectedOutputLineCount, Runnable runnable) {
          String out = ToolsTestUtils.captureStandardOut(() -> {
              ShareConsumerPerformance.printHeader();
              runnable.run();
          });
  
          String[] contents = out.split("\n");
          assertEquals(expectedOutputLineCount, contents.length);
          String header = contents[0];
          String body = contents[1];
  
          assertEquals(header.split(",\\s").length, body.split(",\\s").length);
      }
  
  }
  