.register("basic", new BasicSchemeFactory())
.register("digest", new DigestSchemeFactory()).build();
context.setAuthSchemeRegistry(authSchemeRegistry);
context.setRequestConfig(config);
final CredentialsProvider credentialsProvider = new BasicCredentialsProvider();
credentialsProvider.setCredentials(new AuthScope("somehost", 80),
new UsernamePasswordCredentials("user", "pwd"));
context.setCredentialsProvider(credentialsProvider);
final Queue<AuthOption> options = authStrategy.select(challenges, authhost, response, context);
Assert.assertNotNull(options);