### Question:
DockerJavaAutoConfiguration { @Bean @ConditionalOnMissingBean(DockerClientBuilder.class) public DockerClientBuilder dockerClientBuilder() { return DockerClientBuilder.getInstance(dockerClientConfig()); }  @Bean @ConditionalOnMissingBean(DockerClientConfig.class) DockerClientConfig dockerClientConfig(); @Bean @ConditionalOnMissingBean(DockerClientBuilder.class) DockerClientBuilder dockerClientBuilder(); @Bean @ConditionalOnMissingBean(DockerClient.class) DockerClient dockerJavaClient();  }### Answer:
@Test public void dockerClientBuilder() { Assert.assertNotNull(dockerClientBuilder); }