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test/buffer: cover n_add_for_cb when evbuffer_prepend() need to allocate buffer

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Regression-for: 0abd0393eaf029e1ead8a09b479ea6830f7152ee ("Fix n_add_for_cb in
evbuffer_prepend() in case of new buffer required")
This commit is contained in:
Azat Khuzhin 2016-04-21 01:47:29 +03:00
parent bd19a28ac4
commit e77ff4187f
1 changed files with 27 additions and 1 deletions
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28
test/regress_buffer.c
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@ -1866,12 +1866,23 @@ end:
evbuffer_free(buf2);
}
static void
check_prepend(struct evbuffer *buffer,
const struct evbuffer_cb_info *cbinfo,
void *arg)
{
tt_int_op(cbinfo->orig_size, ==, 3);
tt_int_op(cbinfo->n_added, ==, 8096);
tt_int_op(cbinfo->n_deleted, ==, 0);
end:
;
}
/* Some cases that we didn't get in test_evbuffer() above, for more coverage. */
static void
test_evbuffer_prepend(void *ptr)
{
struct evbuffer *buf1 = NULL, *buf2 = NULL;
char tmp[128];
char tmp[128], *buffer = malloc(8096);
int n;
buf1 = evbuffer_new();
@ -1919,6 +1930,21 @@ test_evbuffer_prepend(void *ptr)
tmp[n]='\0';
tt_str_op(tmp,==,"Here is string 1000. Here is string 999. ");
/* Case 5: evbuffer_prepend() will need a new buffer, with callbacks */
memset(buffer, 'A', 8096);
evbuffer_free(buf2);
buf2 = evbuffer_new();
tt_assert(buf2);
evbuffer_prepend(buf2, "foo", 3);
evbuffer_add_cb(buf2, check_prepend, NULL);
evbuffer_prepend(buf2, buffer, 8096);
evbuffer_remove_cb(buf2, check_prepend, NULL);
evbuffer_validate(buf2);
tt_nstr_op(8096,(char *)evbuffer_pullup(buf2, 8096),==,buffer);
evbuffer_drain(buf2, 8096);
tt_nstr_op(3,(char *)evbuffer_pullup(buf2, 3),==,"foo");
evbuffer_drain(buf2, 3);
end:
if (buf1)
evbuffer_free(buf1);