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-rw-r--r--src/utf8proc/test/case.c73
1 files changed, 73 insertions, 0 deletions
diff --git a/src/utf8proc/test/case.c b/src/utf8proc/test/case.c
new file mode 100644
index 000000000..b3947e2ad
--- /dev/null
+++ b/src/utf8proc/test/case.c
@@ -0,0 +1,73 @@
+#include "tests.h"
+#include <wctype.h>
+
+int main(int argc, char **argv)
+{
+ int error = 0, better = 0;
+ utf8proc_int32_t c;
+
+ (void) argc; /* unused */
+ (void) argv; /* unused */
+
+ /* some simple sanity tests of the character widths */
+ for (c = 0; c <= 0x110000; ++c) {
+ utf8proc_int32_t l = utf8proc_tolower(c);
+ utf8proc_int32_t u = utf8proc_toupper(c);
+ utf8proc_int32_t t = utf8proc_totitle(c);
+
+ check(l == c || utf8proc_codepoint_valid(l), "invalid tolower");
+ check(u == c || utf8proc_codepoint_valid(u), "invalid toupper");
+ check(t == c || utf8proc_codepoint_valid(t), "invalid totitle");
+
+ if (utf8proc_codepoint_valid(c) && (l == u) != (l == t) &&
+ /* Unicode 11: Georgian Mkhedruli chars have uppercase but no titlecase. */
+ !(((c >= 0x10d0 && c <= 0x10fa) || c >= (0x10fd && c <= 0x10ff)) && l != u)) {
+ fprintf(stderr, "unexpected titlecase %x for lowercase %x / uppercase %x\n", t, l, c);
+ ++error;
+ }
+
+ if (sizeof(wint_t) > 2 || c < (1<<16)) {
+ wint_t l0 = towlower(c), u0 = towupper(c);
+
+ /* OS unicode tables may be out of date. But if they
+ do have a lower/uppercase mapping, hopefully it
+ is correct? */
+ if (l0 != c && l0 != l) {
+ fprintf(stderr, "MISMATCH %x != towlower(%x) == %x\n",
+ l, c, l0);
+ ++error;
+ }
+ else if (l0 != l) { /* often true for out-of-date OS unicode */
+ ++better;
+ /* printf("%x != towlower(%x) == %x\n", l, c, l0); */
+ }
+ if (u0 != c && u0 != u) {
+ fprintf(stderr, "MISMATCH %x != towupper(%x) == %x\n",
+ u, c, u0);
+ ++error;
+ }
+ else if (u0 != u) { /* often true for out-of-date OS unicode */
+ ++better;
+ /* printf("%x != towupper(%x) == %x\n", u, c, u0); */
+ }
+ }
+ }
+ check(!error, "utf8proc case conversion FAILED %d tests.", error);
+
+ /* issue #130 */
+ check(utf8proc_toupper(0x00df) == 0x1e9e &&
+ utf8proc_totitle(0x00df) == 0x1e9e &&
+ utf8proc_tolower(0x00df) == 0x00df &&
+ utf8proc_tolower(0x1e9e) == 0x00df &&
+ utf8proc_toupper(0x1e9e) == 0x1e9e,
+ "incorrect 0x00df/0x1e9e case conversions");
+ utf8proc_uint8_t str_00df[] = {0xc3, 0x9f, 0x00};
+ utf8proc_uint8_t str_1e9e[] = {0xe1, 0xba, 0x9e, 0x00};
+ check(!strcmp((char*)utf8proc_NFKC_Casefold(str_00df), "ss") &&
+ !strcmp((char*)utf8proc_NFKC_Casefold(str_1e9e), "ss"),
+ "incorrect 0x00df/0x1e9e casefold normalization");
+
+ printf("More up-to-date than OS unicode tables for %d tests.\n", better);
+ printf("utf8proc case conversion tests SUCCEEDED.\n");
+ return 0;
+}