rt-thread/examples/utest/testcases/posix/unistd_h/functions/ftruncate_tc.c

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2022-07-04 10:20:04 +08:00
#include <unistd.h>
#include <fcntl.h>
#define TRUN_SIZE 3
#define TRUNCATE_TEST_NAME "./ftruncate_to3"
static int ftruncate_entry(void)
{
int res = 0;
int fd = 0;
fd = open(TRUNCATE_TEST_NAME, O_RDWR | O_CREAT | O_APPEND);
if (fd < 0)
{
return -1;
}
write(fd, "hello", 6);
/* TODO */
res = ftruncate(fd, TRUN_SIZE);
close(fd);
return res;
}
#include <utest.h>
static void test_ftruncate(void)
{
uassert_int_equal(ftruncate_entry(), 0);
}
static void testcase(void)
{
UTEST_UNIT_RUN(test_ftruncate);
}
UTEST_TC_EXPORT(testcase, "posix.unistd_h.ftruncate_tc.c", RT_NULL, RT_NULL, 10);