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Update tempfile() unit test to detect failed write + read

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Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
This commit is contained in:
Joachim Nilsson
2017-06-18 18:14:39 +02:00
parent 9f5e852084
commit 6ec2a31042
1 changed files with 13 additions and 2 deletions
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tests/tempfile.c
+13 -2
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@@ -8,18 +8,29 @@
#warning O_TMPFILE is missing, either too old GLIBC, Linux, or non-Linux system
#endif
#define READBACK "Reality is frequently inaccurate.\n"
int main(void)
{
int ret;
FILE *fp;
char buf[80] = "";
printf("Before tempfile():\n");
system("ls -lrt " _PATH_TMP " | tail -3");
ret = system("ls -lrt " _PATH_TMP " | tail -3");
fp = tempfile();
fail_unless(fp != NULL);
ret = fputs(READBACK, fp);
rewind(fp);
if (fgets(buf, sizeof(buf), fp))
fprintf(stderr, "\nRead-back from tempfile: %s", buf);
fail_unless(!strcmp(buf, READBACK));
printf("\nAfter tempfile(), should be same list:\n");
system("ls -lrt " _PATH_TMP " | tail -3");
ret = system("ls -lrt " _PATH_TMP " | tail -3");
return fclose(fp);
}