(byte) 0x7F, // max positive
                (byte) 0x80 // min negative
        };

        String result = Hexdump.toHexString(data);
        assertEquals("00FF7F80", result);
    }

    @Test
    @DisplayName("Should handle large byte arrays efficiently")
    void testLargeByteArray() {
        // Create a larger test array
        byte[] data = createTestData(1024);