// Should encode all 15 characters
        assertTrue(length >= 34);
        assertEquals(0x20, dst[0]);
    }

    @Test
    void readWireFormat_withTrailingSpaces_shouldTrimCorrectly() {
        // Prepare encoded data for "TEST    " (with trailing spaces)
        byte[] src = new byte[100];
        src[0] = 0x20;

        // Encode "TEST" correctly