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#include "../tests.h"
#include <stdio.h>
#include <string.h>
#pragma GCC diagnostic ignored "-Wformat-truncation"
static void test_printf(void) {
char buf[64];
memset(buf, '?', 64);
/* test proper overflow handling in snprintf */
test(13 == snprintf(buf, 15, "That's 0x%x", 0x1337));
test(!memcmp(buf, "That's 0x1337\0??", 16));
test(17 == snprintf(buf, 15, "%05x %05x %05x", 0, 0, 0));
test(!memcmp(buf, "00000 00000 00\0?", 16));
/* all the other stuff */
snprintf(buf, sizeof buf, "%010x", 0x1BABE);
test(!strcmp(buf, "000001babe"));
snprintf(buf, sizeof buf, "%10x", 0x1BABE);
test(!strcmp(buf, " 1babe"));
snprintf(buf, sizeof buf, "%10s", "hello");
test(!strcmp(buf, " hello"));
snprintf(buf, sizeof buf, "%s%%%s", "ab", "cd");
test(!strcmp(buf, "ab%cd"));
snprintf(buf, sizeof buf, "%05u,%05u", 1234, 56789);
test(!strcmp(buf, "01234,56789"));
snprintf(buf, sizeof buf, "%5d,%5d", 123, 4567);
test(!strcmp(buf, " 123, 4567"));
snprintf(buf, sizeof buf, "%5d,%5d", -123, -4567);
test(!strcmp(buf, " -123,-4567"));
snprintf(buf, sizeof buf, "%u,%d,%x", 0, 0, 0);
test(!strcmp(buf, "0,0,0"));
/* precision */
snprintf(buf, sizeof buf, "%5.2u,%5.2d,%5.2x", 0, 0, 0);
test(!strcmp(buf, " 00, 00, 00"));
snprintf(buf, sizeof buf, "%5.2u,%5.2d,%5.2x", 10, -10, 0x10);
test(!strcmp(buf, " 10, -10, 10"));
snprintf(buf, sizeof buf, "%5.3d", -1);
test(!strcmp(buf, " -001"));
snprintf(buf, sizeof buf, "%.5d", 123);
test(!strcmp(buf, "00123"));
snprintf(buf, sizeof buf, "%.1s,%.10s,%.*s", "hello", "hello", 3, "hello");
test(!strcmp(buf, "h,hello,hel"));
}
void r_s_printf(void) {
run_test(test_printf);
}
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