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   * Licensed to the Apache Software Foundation (ASF) under one
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   * 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
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  package org.apache.beam.sdk.testing;
  
  import static org.junit.jupiter.api.Assertions.assertEquals;
  import static org.junit.jupiter.api.Assertions.assertNotNull;
  
  import org.apache.beam.sdk.options.ApplicationNameOptions;
  import org.apache.beam.sdk.transforms.Create;
  import org.apache.beam.sdk.values.PCollection;
  import org.junit.jupiter.api.Test;
  import org.junit.jupiter.api.extension.ExtendWith;
  
  /** Tests for {@link TestPipelineExtension} to demonstrate JUnit 5 integration. */
  @ExtendWith(TestPipelineExtension.class)
  public class TestPipelineExtensionTest {
  
    @Test
    public void testPipelineInjection(TestPipeline pipeline) {
      // Verify that the pipeline is injected and not null
      assertNotNull(pipeline);
      assertNotNull(pipeline.getOptions());
      assertEquals(
          "TestPipelineExtensionTest-testPipelineInjection",
          pipeline.getOptions().as(ApplicationNameOptions.class).getAppName());
    }
  
    @Test
    public void testBasicPipelineExecution(TestPipeline pipeline) {
      // Create a simple pipeline
      PCollection<String> input = pipeline.apply("Create", Create.of("hello", "world"));
  
      // Use PAssert to verify the output
      PAssert.that(input).containsInAnyOrder("hello", "world");
  
      // Run the pipeline
      pipeline.run();
    }
  
    @Test
    public void testEmptyPipeline(TestPipeline pipeline) {
      // Test that an empty pipeline doesn't cause issues
      assertNotNull(pipeline);
      // The extension should handle empty pipelines gracefully
    }
  }
  