assertEquals("1234", Hexdump.toHexString(0x1234, 4));
        assertEquals("34", Hexdump.toHexString(0x1234, 2));

        // Test negative values (treated as unsigned)
        assertEquals("FFFFFFFF", Hexdump.toHexString(-1, 8));
        assertEquals("FFFF", Hexdump.toHexString(-1, 4));
        assertEquals("FF", Hexdump.toHexString(-1, 2));
    }

    @Test

        assertEquals("00000000", Hexdump.toHexString(0, 8));
        assertEquals("000000FF", Hexdump.toHexString(255, 8));
        assertEquals("00001000", Hexdump.toHexString(4096, 8));
        assertEquals("FFFFFFFF", Hexdump.toHexString(-1, 8));

        // Test different sizes
        assertEquals("00", Hexdump.toHexString(0, 2));
        assertEquals("FF", Hexdump.toHexString(255, 2));

        assertNotNull(date);
        // Allow for a small difference due to precision loss
        assertEquals(time / 1000, date.getTime() / 1000);

        // Test with null date (0x7fffffff ffffffff)
        byte[] nullData = new byte[] { (byte) 0xff, (byte) 0xff, (byte) 0xff, (byte) 0xff, (byte) 0xff, (byte) 0xff, (byte) 0xff, 0x7f };
        pdis = createInputStream(nullData);
        assertNull(pdis.readFiletime());

            UUID uuid = new UUID(rpcUuid);

            // Act
            String result = uuid.toString();

            // Assert
            assertEquals("FFFFFFFF-FFFF-FFFF-FFFF-FFFFFFFFFFFF", result, "toString() should correctly format maximum value UUID");
        }
    }

    @Nested
    @DisplayName("Edge Case Tests")
    class EdgeCaseTests {

        @Test