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Commit 7265cd17 authored by Martin Storsjo's avatar Martin Storsjo Committed by Alexandre Julliard
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ucrtbase: Extend the printf tests even further.

Signed-off-by: 's avatarMartin Storsjo <martin@martin.st> Signed-off-by: 's avatarPiotr Caban <piotr@codeweavers.com> Signed-off-by: 's avatarAlexandre Julliard <julliard@winehq.org>
parent 4358ddc7
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Showing with 48 additions and 45 deletions
dlls/ucrtbase/tests/printf.c
View file @ 7265cd17
......@@ -90,52 +90,55 @@ static int WINAPIV vsprintf_wrapper(unsigned __int64 options, char *str,
static void test_snprintf (void)
{
const char *tests[] = {"short", "justfit", "justfits", "muchlonger"};
const char *tests[] = {"short", "justfit", "justfits", "muchlonger", "", "1"};
char buffer[8];
const int bufsiz = sizeof buffer;
unsigned int i;
/* Legacy _snprintf style termination */
for (i = 0; i < ARRAY_SIZE(tests); i++) {
const char *fmt = tests[i];
const int expect = strlen(fmt) > bufsiz ? -1 : strlen(fmt);
const int n = vsprintf_wrapper (_CRT_INTERNAL_PRINTF_LEGACY_VSPRINTF_NULL_TERMINATION, buffer, bufsiz, fmt);
const int valid = n < 0 ? bufsiz : (n == bufsiz ? n : n+1);
ok (n == expect, "\"%s\": expected %d, returned %d\n",
fmt, expect, n);
ok (!memcmp (fmt, buffer, valid),
"\"%s\": rendered \"%.*s\"\n", fmt, valid, buffer);
}
/* C99 snprintf style termination */
for (i = 0; i < ARRAY_SIZE(tests); i++) {
const char *fmt = tests[i];
const int expect = strlen(fmt);
const int n = vsprintf_wrapper (_CRT_INTERNAL_PRINTF_STANDARD_SNPRINTF_BEHAVIOR, buffer, bufsiz, fmt);
const int valid = n >= bufsiz ? bufsiz - 1 : n < 0 ? 0 : n;
ok (n == expect, "\"%s\": expected %d, returned %d\n",
fmt, expect, n);
ok (!memcmp (fmt, buffer, valid),
"\"%s\": rendered \"%.*s\"\n", fmt, valid, buffer);
ok (buffer[valid] == '\0',
"\"%s\": Missing null termination (ret %d) - is %d\n", fmt, n, buffer[valid]);
}
/* swprintf style termination */
for (i = 0; i < ARRAY_SIZE(tests); i++) {
const char *fmt = tests[i];
const int expect = strlen(fmt) >= bufsiz ? -2 : strlen(fmt);
const int n = vsprintf_wrapper (0, buffer, bufsiz, fmt);
const int valid = n < 0 ? bufsiz - 1 : n;
ok (n == expect, "\"%s\": expected %d, returned %d\n",
fmt, expect, n);
ok (!memcmp (fmt, buffer, valid),
"\"%s\": rendered \"%.*s\"\n", fmt, valid, buffer);
ok (buffer[valid] == '\0',
"\"%s\": Missing null termination (ret %d) - is %d\n", fmt, n, buffer[valid]);
int bufsizes[] = { 0, 1, sizeof(buffer) };
unsigned int i, j;
for (j = 0; j < ARRAY_SIZE(bufsizes); j++) {
const int bufsiz = bufsizes[j];
/* Legacy _snprintf style termination */
for (i = 0; i < ARRAY_SIZE(tests); i++) {
const char *fmt = tests[i];
const int expect = strlen(fmt) > bufsiz ? -1 : strlen(fmt);
const int n = vsprintf_wrapper (_CRT_INTERNAL_PRINTF_LEGACY_VSPRINTF_NULL_TERMINATION, buffer, bufsiz, fmt);
const int valid = n < 0 ? bufsiz : (n == bufsiz ? n : n+1);
ok (n == expect, "\"%s\": expected %d, returned %d\n",
fmt, expect, n);
ok (!memcmp (fmt, buffer, valid),
"\"%s\": rendered \"%.*s\"\n", fmt, valid, buffer);
}
/* C99 snprintf style termination */
for (i = 0; i < ARRAY_SIZE(tests); i++) {
const char *fmt = tests[i];
const int expect = strlen(fmt);
const int n = vsprintf_wrapper (_CRT_INTERNAL_PRINTF_STANDARD_SNPRINTF_BEHAVIOR, buffer, bufsiz, fmt);
const int valid = n >= bufsiz ? (bufsiz > 0 ? bufsiz - 1 : 0) : n < 0 ? 0 : n;
ok (n == expect, "\"%s\": expected %d, returned %d\n",
fmt, expect, n);
ok (!memcmp (fmt, buffer, valid),
"\"%s\": rendered \"%.*s\" bufsiz %d\n", fmt, valid, buffer, bufsiz);
ok (bufsiz == 0 || buffer[valid] == '\0',
"\"%s\": Missing null termination (ret %d) - is %d (bufsiz %d)\n", fmt, n, buffer[valid], bufsiz);
}
/* swprintf style termination */
for (i = 0; i < ARRAY_SIZE(tests); i++) {
const char *fmt = tests[i];
const int expect = strlen(fmt) >= bufsiz ? bufsiz > 0 ? -2 : -1 : strlen(fmt);
const int n = vsprintf_wrapper (0, buffer, bufsiz, fmt);
const int valid = n < 0 ? bufsiz > 0 ? bufsiz - 1 : 0 : n;
ok (n == expect, "\"%s\": expected %d, returned %d\n",
fmt, expect, n);
ok (!memcmp (fmt, buffer, valid),
"\"%s\": rendered \"%.*s\" bufsiz %d\n", fmt, valid, buffer, bufsiz);
ok (bufsiz == 0 || buffer[valid] == '\0',
"\"%s\": Missing null termination (ret %d) - is %d\n", fmt, n, buffer[valid]);
}
}
ok (vsprintf_wrapper (_CRT_INTERNAL_PRINTF_STANDARD_SNPRINTF_BEHAVIOR, NULL, 0, "abcd") == 4,
......
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