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

    @Test
    public void testSmbUrlWithPort() throws Exception {
        String url = "smb://server:445/share";
        String normalized = validator.validateSmbUrl(url);
        // Standard port 445 might be removed in normalization