#include "tests.h" #define CHECK_NORM(NRM, norm, src) {                                 \    char *src_norm = (char*) utf8proc_ ## NRM((utf8proc_uint8_t*) src);      \    check(!strcmp(norm, src_norm),                                  \          "normalization failed for %s -> %s", src, norm);          \    free(src_norm);                                                 \} int main(int argc, char **argv){     char *buf = NULL;     size_t bufsize = 0;     FILE *f = argc > 1 ? fopen(argv[1], "r") : NULL;     char source[1024], NFC[1024], NFD[1024], NFKC[1024], NFKD[1024];      check(f != NULL, "error opening NormalizationTest.txt");     while (getline(&buf, &bufsize, f) > 0) {          size_t offset;          lineno += 1;           if (buf[0] == '@') {               printf("line %zd: %s", lineno, buf + 1);               continue;          }          else if (lineno % 1000 == 0)               printf("checking line %zd...\n", lineno);           if (buf[0] == '#') continue;           offset = encode(source, buf);          offset += encode(NFC, buf + offset);          offset += encode(NFD, buf + offset);          offset += encode(NFKC, buf + offset);          offset += encode(NFKD, buf + offset);           CHECK_NORM(NFC, NFC, source);          CHECK_NORM(NFC, NFC, NFC);          CHECK_NORM(NFC, NFC, NFD);          CHECK_NORM(NFC, NFKC, NFKC);          CHECK_NORM(NFC, NFKC, NFKD);           CHECK_NORM(NFD, NFD, source);          CHECK_NORM(NFD, NFD, NFC);          CHECK_NORM(NFD, NFD, NFD);          CHECK_NORM(NFD, NFKD, NFKC);          CHECK_NORM(NFD, NFKD, NFKD);           CHECK_NORM(NFKC, NFKC, source);          CHECK_NORM(NFKC, NFKC, NFC);          CHECK_NORM(NFKC, NFKC, NFD);          CHECK_NORM(NFKC, NFKC, NFKC);          CHECK_NORM(NFKC, NFKC, NFKD);           CHECK_NORM(NFKD, NFKD, source);          CHECK_NORM(NFKD, NFKD, NFC);          CHECK_NORM(NFKD, NFKD, NFD);          CHECK_NORM(NFKD, NFKD, NFKC);          CHECK_NORM(NFKD, NFKD, NFKD);     }     fclose(f);     printf("Passed tests after %zd lines!\n", lineno);     return 0;}