rt-thread-official/examples/utest/testcases/posix/stdio_h/functions/vsnprintf_tc.c

39 lines
764 B
C

#include <stdio.h>
#include <stdarg.h>
#include <string.h>
static char buf[64] = {0};
static void WriteFrmtd(char *format, ...)
{
va_list args;
va_start(args, format);
vsnprintf(buf, 22, format, args);
va_end(args);
}
static int vsnprintf_entry(void)
{
char buf[64] = {0};
char test_data[] = "vsnprintf test:2021-8";
snprintf(buf, 22,"vsnprintf test:%s-%d-%c %.02f 0x%x","2021" ,8 ,'1' ,3.14 ,0xff);
if(strcmp(buf, test_data))
{
return -1;
}
return 0;
}
#include <utest.h>
static void test_vsnprintf(void)
{
uassert_int_equal(vsnprintf_entry(), 0);
}
static void testcase(void)
{
UTEST_UNIT_RUN(test_vsnprintf);
}
UTEST_TC_EXPORT(testcase, "rtt_posix_testcase.stdio_h."__FILE__, RT_NULL, RT_NULL, 10);