String url = "smb://server:8445/share";
        String normalized = validator.validateSmbUrl(url);
        assertTrue(normalized.contains(":8445"));
    }

    @Test
    public void testInvalidSmbUrlFormat() throws Exception {
        assertThrows(SmbException.class, () -> {
            validator.validateSmbUrl("http://server/share");
        });
    }

    @Test