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From: | zhanghailiang |
Subject: | Re: [Qemu-devel] [PATCH v4 08/10] tests/bios-tables-test: check the value returned by fopen() |
Date: | Fri, 8 Aug 2014 18:46:25 +0800 |
User-agent: | Mozilla/5.0 (Windows NT 6.1; rv:11.0) Gecko/20120327 Thunderbird/11.0.1 |
On 2014/8/8 17:51, Alex Bennée wrote:
zhanghailiang writes:The function fopen() may fail, so check its return value. Signed-off-by: zhanghailiang<address@hidden> Signed-off-by: Li Liu<address@hidden> --- tests/bios-tables-test.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/tests/bios-tables-test.c b/tests/bios-tables-test.c index 045eb27..6a357c0 100644 --- a/tests/bios-tables-test.c +++ b/tests/bios-tables-test.c @@ -790,6 +790,8 @@ int main(int argc, char *argv[]) const char *arch = qtest_get_arch(); FILE *f = fopen(disk, "w"); int ret; + + g_assert(f != NULL); fwrite(boot_sector, 1, sizeof boot_sector, f); fclose(f);Incorrect use of g_assert. An assertion is a test for things that shouldn't happen so in this case it's saying: * this function assumes files will always successfully open Which is not the case. It's quite possible that a fopen will fail and the correct behaviour is to handle the error, not assert out.
Good catch! That is a low grade fault, i will correct it! Thanks, Alex Best regards, zhanghailiang
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