  @Test
  public void delimitateTabsSuccessful() {

    HttpServletRequest mock = Mockito.mock(HttpServletRequest.class);

    Mockito.when(mock.getHeader(Mockito.anyString())).thenReturn("string\twith\ttabs");

    String stringWithoutTabs = tabDelimitedCertificateFilter.getEncodedTppQwacCert(mock);

    assertEquals("stringwithtabs", stringWithoutTabs);
  }