#include "../src/Drv/lcd/lcd_text.h"
#include "test_common.h"

int main(void)
{
    uint32_t unicode = 0;
    const unsigned char ascii[] = "A";
    const unsigned char u2[] = {0xC2, 0xA2, 0x00};       /* U+00A2 */
    const unsigned char u3[] = {0xE4, 0xBD, 0xA0, 0x00}; /* U+4F60 */
    const unsigned char invalid[] = {0xF0, 0x00};        /* 4-byte start not supported */
    const unsigned char truncated2[] = {0xC2, 0x00};
    const unsigned char truncated3[] = {0xE4, 0xBD, 0x00};

    ASSERT_EQ_INT(1, utf8_next(ascii, &unicode));
    ASSERT_EQ_U32(0x41u, unicode);

    ASSERT_EQ_INT(2, utf8_next(u2, &unicode));
    ASSERT_EQ_U32(0x00A2u, unicode);

    ASSERT_EQ_INT(3, utf8_next(u3, &unicode));
    ASSERT_EQ_U32(0x4F60u, unicode);

    ASSERT_EQ_INT(0, utf8_next(invalid, &unicode));
    ASSERT_EQ_INT(0, utf8_next(truncated2, &unicode));
    ASSERT_EQ_INT(0, utf8_next(truncated3, &unicode));
    return 0;
}