### Question:
WrappedHttpClientConfig { public HttpClientConfig getHttpClientConfig() { return httpClientConfig; } protected  WrappedHttpClientConfig(Builder builder); HttpClientConfig getHttpClientConfig(); int getIoThreadCount();  }### Answer:
@Test public void builderBuildsWithGivenHttpClientConfig() { HttpClientConfig givenConfig = new HttpClientConfig.Builder("http: WrappedHttpClientConfig.Builder builder = new WrappedHttpClientConfig.Builder(givenConfig); WrappedHttpClientConfig config = builder.build(); assertTrue(config.getHttpClientConfig() == givenConfig); }