* supported. Null keys and values are supported.
 *
 * <p>{@code containsKey(k)}, {@code put(k, v)} and {@code remove(k)} are all (expected and
 * amortized) constant time operations. Expected in the hashtable sense (depends on the hash
 * function doing a good job of distributing the elements to the buckets to a distribution not far

  ':x-pack:plugin:identity-provider:qa:idp-rest-tests',
  ':x-pack:plugin:ilm',
  ':x-pack:plugin:ilm:qa:multi-node',
  ':x-pack:plugin:ilm:qa:rest',
  ':x-pack:plugin:ilm:qa:with-security',
  ':x-pack:plugin:mapper-constant-keyword',
  ':x-pack:plugin:mapper-flattened',
  ':x-pack:plugin:ml',
  ':x-pack:plugin:ml:qa:basic-multi-node',
  ':x-pack:plugin:ml:qa:disabled',
  ':x-pack:plugin:ml:qa:ml-with-security',

        assertDoesNotThrow(() -> request.setFileId(emptyFileId), "Should handle empty file ID without throwing exception");
    }

    @Test
    @DisplayName("Should handle unspecified file ID constant")
    void testSetUnspecifiedFileId() {
        // Given
        RequestWithFileId request = new Smb2CloseRequest(mockConfig, testFileId);

        // When
        request.setFileId(unspecifiedFileId);

    abstract protected String getItemEndpointSuffix();

    abstract protected Map<String, Object> createTestParam(int id);

    abstract protected Map<String, Object> getUpdateMap();

    // ================
    // Constant
    // ================
    protected String getIdKey() {
        return "id";
    }

    @BeforeAll
    protected static void initAll() {
        RestAssured.baseURI = getFessUrl();

            for (final String labelTypeValue : labelList) {
                for (final Map<String, String> map : labelTypeItems) {
                    if (map.get(Constants.ITEM_VALUE).equals(labelTypeValue)) {
                        buf.append(' ');
                        buf.append(map.get(Constants.ITEM_LABEL));
                        break;
                    }
                }
            }
        }
        return buf.toString();

                System.setProperty(Constants.FESS_SEARCH_ENGINE_HTTP_ADDRESS, originalValue);
            } else {
                System.clearProperty(Constants.FESS_SEARCH_ENGINE_HTTP_ADDRESS);
            }
        }
    }

    @Test
    public void test_getSearchEngineHttpAddress_withEmptyString() {
        String originalValue = System.getProperty(Constants.FESS_SEARCH_ENGINE_HTTP_ADDRESS);

        try {

	Authorization      = "Authorization"
	Action             = "Action"
	Range              = "Range"
)

// Non standard S3 HTTP response constants
const (
	XCache       = "X-Cache"
	XCacheLookup = "X-Cache-Lookup"
)

// Standard S3 HTTP request constants
const (
	IfModifiedSince   = "If-Modified-Since"
	IfUnmodifiedSince = "If-Unmodified-Since"
	IfMatch           = "If-Match"

    void testGetAttributes() {
        // Default instance
        assertEquals(SmbConstants.ATTR_READONLY | SmbConstants.ATTR_DIRECTORY, shareInfo.getAttributes());

        // Instance with values - attributes are still constant
        SmbShareInfo info = new SmbShareInfo(TEST_NET_NAME, TEST_TYPE, TEST_REMARK);
        assertEquals(SmbConstants.ATTR_READONLY | SmbConstants.ATTR_DIRECTORY, info.getAttributes());
    }

    @Test

    }

    @Nested
    @DisplayName("Header Constants")
    class HeaderConstants {

        @Test
        @DisplayName("SMB2 header length should be 64 bytes")
        void testSmb2HeaderLength() {
            assertEquals(64, Smb2Constants.SMB2_HEADER_LENGTH, "SMB2 header must be exactly 64 bytes");
        }
    }

    @Nested
    @DisplayName("Negotiation Constants")
    class NegotiationConstants {

        @Test

   * addition, a series of disjoint linked lists of "siblings", each containing
   * the values for a specific key, is used to implement {@link
   * ValueForKeyIterator} in constant time.
   */

  static final class Node<K extends @Nullable Object, V extends @Nullable Object>
      extends SimpleEntry<K, V> {
    @Nullable Node<K, V> next; // the next node (with any key)