HttpUtil { public static String authHeaderBearer(final BigInteger token) { return authHeaderBearer(IdUtil.toString(token)); } private  HttpUtil(); static String authHeaderBasic(final String login,
                                         final String password); static String authHeaderBasic(final BigInteger login,
                                         final String password); static String authHeaderBearer(final BigInteger token); static String authHeaderBearer(final String token); static MultivaluedMap<String, String> parseQueryParams(
            final URI uri); static MultivaluedMap<String, String> parseQueryParams(
            final String query); static MultivaluedMap<String, String> parseBodyParams(
            final Response response);  }
@Test public void authHeaderBearer() { assertEquals("Bearer test_token", HttpUtil.authHeaderBearer("test_token")); assertEquals("Bearer 0000000000000000000000000000000a", HttpUtil.authHeaderBearer(BigInteger.TEN)); assertEquals("", HttpUtil.authHeaderBearer((String) null)); }