code: @Test public void testThatExplicitLangSettingWorks(){
    Map<String,String> headers=Maps.newHashMap();
    headers.put("Accept-Language","de-DE");
    String result=ninjaTestBrowser.makeRequest(getServerAddress() + "/i18n/en",headers);
    assertTrue(result.contains(TEXT_EN));
    headers=Maps.newHashMap();
    headers.put("Accept-Language","de-DE");
    result=ninjaTestBrowser.makeRequest(getServerAddress() + "/i18n/tk",headers);
    assertTrue(result.contains(TEXT_EN));
    headers=Maps.newHashMap();
    result=ninjaTestBrowser.makeRequest(getServerAddress() + "/i18n/tk",headers);
    assertTrue(result.contains(TEXT_EN));
    headers=Maps.newHashMap();
    headers.put("Accept-Language","de-DE");
    result=ninjaTestBrowser.makeRequest(getServerAddress() + "/i18n/de",headers);
    assertTrue(result.contains(TEXT_DE));
  }
  