assertEquals(UNICODE_STRING, roundTrip, "Round-trip conversion should preserve Unicode");
        }

        @Test
        @DisplayName("getASCIIBytes should encode string as ASCII")
        void testGetASCIIBytes() {
            // When
            byte[] result = Strings.getASCIIBytes(ASCII_STRING);

            // Then
            assertNotNull(result, "Result should not be null");