Set<Entry<Integer, Character>> entrySet = row.entrySet();
    assertTrue(entrySet.contains(immutableEntry(10, 'X')));
    assertTrue(entrySet.contains(immutableEntry(20, 'X')));
    assertFalse(entrySet.contains(immutableEntry(15, 'X')));
    entrySet = row.tailMap(15).entrySet();
    assertFalse(entrySet.contains(immutableEntry(10, 'X')));
    assertTrue(entrySet.contains(immutableEntry(20, 'X')));

import static org.junit.jupiter.api.Assertions.assertFalse;
import static org.junit.jupiter.api.Assertions.assertNotNull;
import static org.junit.jupiter.api.Assertions.assertThrows;
import static org.junit.jupiter.api.Assertions.assertTrue;

import org.junit.jupiter.api.Test;

import jcifs.internal.smb2.persistent.DurableHandleReconnect;
import jcifs.internal.smb2.persistent.DurableHandleRequest;

    assertFalse(set.contains(0));
    assertTrue(set.contains(1));
    assertTrue(set.contains(2));
    assertTrue(set.contains(3));
    assertFalse(set.contains(4));
    set = ContiguousSet.create(Range.open(0, 4), integers());
    assertFalse(set.contains(0));
    assertTrue(set.contains(1));
    assertTrue(set.contains(2));
    assertTrue(set.contains(3));
    assertFalse(set.contains(4));
  }

        org.junit.jupiter.api.Assertions.assertTrue(actualString.startsWith("SmbComCreateDirectory["),
                "String should start with the class name.");
        org.junit.jupiter.api.Assertions.assertTrue(actualString.contains("command=SMB_COM_CREATE_DIRECTORY"),
                "String should contain the command name.");
        org.junit.jupiter.api.Assertions.assertTrue(actualString.contains("directoryName=myDir"),

  }

  public void testCancel_notDoneNoInterrupt() throws Exception {
    Future<?> future = newFutureInstance();
    assertTrue(future.cancel(false));
    assertTrue(future.isCancelled());
    assertTrue(future.isDone());
    assertThat(tryInternalFastPathGetFailure(future)).isNull();
    CancellationException e = assertThrows(CancellationException.class, () -> future.get());

    entryIterator.next();
    entryIterator.remove();
    assertFalse(underlying.containsKey("g"));

    assertTrue(underlying.isEmpty());
    assertTrue(map.isEmpty());
    assertTrue(keys.isEmpty());
    assertTrue(values.isEmpty());
    assertTrue(entries.isEmpty());
  }

  public void testTransformEquals() {
    Map<String, Integer> underlying = ImmutableMap.of("a", 0, "b", 1, "c", 2);

        String result = transPeekNamedPipe.toString();

        // Assert
        assertNotNull(result);
        assertTrue(result.contains("TransPeekNamedPipe"));
        if (pipeName != null) {
            assertTrue(result.contains("pipeName=" + pipeName));
        } else {
            assertTrue(result.contains("pipeName=null"));
        }
    }

    @Test

        assertNotNull(result);
        assertTrue(result.contains("Trans2FindNext2"));
        assertTrue(result.contains("sid=" + TEST_SID));
        assertTrue(result.contains("searchCount=50"));
        assertTrue(result.contains("informationLevel=0x"));
        assertTrue(result.contains("resumeKey=0x" + Hexdump.toHexString(TEST_RESUME_KEY, 4)));
        assertTrue(result.contains("flags=0x00"));

        }

        @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
        void shouldThrowExceptionForNullInput() {

        long seq3 = registration.getNextSequenceNumber();

        assertEquals(1, seq1);
        assertEquals(2, seq2);
        assertEquals(3, seq3);
        assertTrue(seq2 > seq1);
        assertTrue(seq3 > seq2);
    }

    @Test
    void testHeartbeatUpdate() throws InterruptedException {
        long initialTime = registration.getLastHeartbeat();