code: @Test public void testGetAcceptLanguage(){
    String language="de";
    when(httpServletRequest.getHeader("accept-language")).thenReturn(language);
    context.init(httpServletRequest,httpServletResponse);
    assertEquals(language,context.getAcceptLanguage());
    language=null;
    when(httpServletRequest.getHeader("accept-language")).thenReturn(language);
    context.init(httpServletRequest,httpServletResponse);
    assertNull(context.getAcceptLanguage());
    language="da, en-gb;q=0.8, en;q=0.7";
    when(httpServletRequest.getHeader("accept-language")).thenReturn(language);
    context.init(httpServletRequest,httpServletResponse);
    assertEquals(language,context.getAcceptLanguage());
  }
  