### Question:
B2StorageHttpClientFactory implements B2StorageClientFactory { @Override public B2StorageClient create(B2ClientConfig config) { return B2StorageHttpClientBuilder.builder(config).build(); }  @Override B2StorageClient create(B2ClientConfig config);  }### Answer:
@Test public void testCreate() { final B2StorageHttpClientFactory factory = new B2StorageHttpClientFactory(); assertNotNull(factory); }
@Test public void testDefaultFactory_succeedsBecauseTestEnvironmentIncludesHttpClientJars() { final B2StorageClientFactory factory = B2StorageClientFactory.createDefaultFactory(); assertTrue(factory instanceof B2StorageClientFactoryPathBasedImpl); assertNotNull(factory.create("appKeyId", "appKey", "userAgent")); }