}

    @Test
    public void testInvalidUncPath() throws Exception {
        // Due to normalization removing duplicate backslashes, true UNC validation doesn't work
        // These tests validate current behavior where problematic paths are caught by other checks

        // Test invalid server name with dots - caught by directory traversal check
        assertThrows(SmbException.class, () -> {

            final String endpoint = System.getenv("GCS_ENDPOINT");
            final String credentialsFile = System.getenv("GCS_CREDENTIALS_FILE");

            // Validate projectId before attempting connection
            if (StringUtil.isBlank(projectId)) {
                throw new IOException("GCS_PROJECT_ID is blank.");
            }

            try {

            final String secretKey = System.getenv().get("S3_SECRET_KEY");
            final String region = System.getenv().getOrDefault("S3_REGION", "us-east-1");

            // Validate endpoint before attempting connection
            if (StringUtil.isBlank(endpoint)) {
                throw new IOException("S3_ENDPOINT is blank.");
            }

            try {

          <type>java.lang.String[]</type>
          <required>false</required>
          <editable>true</editable>
        </parameter>
      </parameters>

- we need to know what came from the POM, and validate those
- plugin in any default values
- check to see if anything is missing

	resp, err := httpClient.Do(req)
	if err != nil {
		return err
	}
	xhttp.DrainBody(resp.Body)

	return nil
}

// connect to list of endpoints and load all Erasure disk formats, validate the formats are correct
// and are in quorum, if no formats are found attempt to initialize all of them for the first
// time. additionally make sure to close all the disks used in this attempt.

        transformHeader.setOriginalMessageSize(messageSize);

        // Then
        assertEquals(messageSize, transformHeader.getOriginalMessageSize());
    }

    @Test
    @DisplayName("Should validate protocol ID")
    void testProtocolIdValidation() {
        // Given
        byte[] validProtocolId = { (byte) 0xFD, 'S', 'M', 'B' };
        byte[] invalidProtocolId = { 'I', 'N', 'V', 'D' };

        // When/Then

        verify(treeConnection, times(2)).isSame(otherConn);
    }

    @Test
    @DisplayName("Buffer sizes and signing flags from negotiate response")
    void bufferSizesAndSigning() throws Exception {
        // Validate buffer sizes and signing flag are read from negotiate response
        SmbNegotiationResponse nego = mock(SmbNegotiationResponse.class);
        when(transport.getNegotiateResponse()).thenReturn(nego);

long maxAccessCount = 0         // Max URLs (0 = unlimited)
```

### CrawlerThread (`CrawlerThread.java`)

Worker thread for crawling.

**Flow**: Poll URL → Validate → Get client → Delay → Check last-modified → Execute → Process → Extract children → Queue children → Delay

### CrawlerClientFactory

Pattern-based client selection using `LinkedHashMap<Pattern, CrawlerClient>`.

        // Directory leasing requires SMB 3.0 or higher
        // MS-SMB2: Level 2 leasing (which includes directory leasing) is only supported in SMB 3.0+
        // We'll validate this when we actually need to use the session

        // Request base lease
        Smb2LeaseKey leaseKey = baseLeaseManager.requestLease(directoryPath, requestedState);

        // Create directory cache entry

            assertFalse(UniAddress.isDotQuadIP(input));
        }

        @Test
        void shouldReturnTrueForInvalidOctetValues() {
            // isDotQuadIP does not validate octet values, only checks format
            assertTrue(UniAddress.isDotQuadIP("192.168.1.256"));
            assertTrue(UniAddress.isDotQuadIP("999.999.999.999"));
        }

        @Test