@Test
public void testLanguageEnglishGiven() throws IOException {
HttpPost post = new HttpPost(uri("/context/httpheaders/language"));
post.setHeader("Content-Type", "text/plain");
post.setEntity(new StringEntity("Hello world!", "UTF-8"));
post.addHeader("Content-Language", "en");
final HttpResponse response = client.execute(post);
assertEquals(response.getStatusLine().getStatusCode(), 200);
String responseBody = asString(response);
assertEquals("language:en:", responseBody);