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Add channeltls/num_bytes_queued unit test

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This commit is contained in:
Andrea Shepard 2014-01-23 06:56:18 -08:00
parent a2de0a1034
commit 030b0fe107
1 changed files with 95 additions and 0 deletions
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95
src/test/test_channeltls.c
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@ -6,6 +6,7 @@
#define TOR_CHANNEL_INTERNAL_
#include "or.h"
#include "address.h"
#include "buffers.h"
#include "channel.h"
#include "channeltls.h"
#include "connection_or.h"
@ -20,9 +21,11 @@
/* The channeltls unit tests */
static void test_channeltls_create(void *arg);
static void test_channeltls_num_bytes_queued(void *arg);
static void test_channeltls_overhead_estimate(void *arg);
/* Mocks used by channeltls unit tests */
static size_t tlschan_buf_datalen_mock(const buf_t *buf);
static or_connection_t * tlschan_connection_or_connect_mock(
const tor_addr_t *addr,
uint16_t port,
@ -35,6 +38,8 @@ static void tlschan_fake_close_method(channel_t *chan);
/* Flags controlling behavior of channeltls unit test mocks */
static int tlschan_local = 0;
static const buf_t * tlschan_buf_datalen_mock_target = NULL;
static size_t tlschan_buf_datalen_mock_size = 0;
/* Thing to cast to fake tor_tls_t * to appease assert_connection_ok() */
static int fake_tortls = 0; /* Bleh... */
@ -85,6 +90,84 @@ test_channeltls_create(void *arg)
return;
}
static void
test_channeltls_num_bytes_queued(void *arg)
{
tor_addr_t test_addr;
channel_t *ch = NULL;
const char test_digest[DIGEST_LEN] = {
0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0a,
0x0b, 0x0c, 0x0d, 0x0e, 0x0f, 0x10, 0x11, 0x12, 0x13, 0x14 };
channel_tls_t *tlschan = NULL;
size_t len;
int fake_outbuf = 0;
(void)arg;
/* Set up a fake address to fake-connect to */
test_addr.family = AF_INET;
test_addr.addr.in_addr.s_addr = htonl(0x01020304);
/* For this test we always want the address to be treated as non-local */
tlschan_local = 0;
/* Install is_local_addr() mock */
MOCK(is_local_addr, tlschan_is_local_addr_mock);
/* Install mock for connection_or_connect() */
MOCK(connection_or_connect, tlschan_connection_or_connect_mock);
/* Try connecting */
ch = channel_tls_connect(&test_addr, 567, test_digest);
test_assert(ch != NULL);
/*
* Next, we have to test ch->num_bytes_queued, which is
* channel_tls_num_bytes_queued_method. We can't mock
* connection_get_outbuf_len() directly because it's static INLINE
* in connection.h, but we can mock buf_datalen(). Note that
* if bufferevents ever work, this will break with them enabled.
*/
test_assert(ch->num_bytes_queued != NULL);
tlschan = BASE_CHAN_TO_TLS(ch);
test_assert(tlschan != NULL);
if (TO_CONN(tlschan->conn)->outbuf == NULL) {
/* We need an outbuf to make sure buf_datalen() gets called */
fake_outbuf = 1;
TO_CONN(tlschan->conn)->outbuf = buf_new();
}
tlschan_buf_datalen_mock_target = TO_CONN(tlschan->conn)->outbuf;
tlschan_buf_datalen_mock_size = 1024;
MOCK(buf_datalen, tlschan_buf_datalen_mock);
len = ch->num_bytes_queued(ch);
test_eq(len, tlschan_buf_datalen_mock_size);
UNMOCK(buf_datalen);
tlschan_buf_datalen_mock_target = NULL;
tlschan_buf_datalen_mock_size = 0;
if (fake_outbuf) {
buf_free(TO_CONN(tlschan->conn)->outbuf);
TO_CONN(tlschan->conn)->outbuf = NULL;
}
done:
if (ch) {
MOCK(scheduler_release_channel, scheduler_release_channel_mock);
/*
* Use fake close method that doesn't try to do too much to fake
* orconn
*/
ch->close = tlschan_fake_close_method;
channel_mark_for_close(ch);
tor_free(ch);
UNMOCK(scheduler_release_channel);
}
UNMOCK(connection_or_connect);
UNMOCK(is_local_addr);
return;
}
static void
test_channeltls_overhead_estimate(void *arg)
{
@ -159,6 +242,16 @@ test_channeltls_overhead_estimate(void *arg)
return;
}
static size_t
tlschan_buf_datalen_mock(const buf_t *buf)
{
if (buf != NULL && buf == tlschan_buf_datalen_mock_target) {
return tlschan_buf_datalen_mock_size;
}else {
return buf_datalen__real(buf);
}
}
static or_connection_t *
tlschan_connection_or_connect_mock(const tor_addr_t *addr,
uint16_t port,
@ -221,6 +314,8 @@ tlschan_is_local_addr_mock(const tor_addr_t *addr)
struct testcase_t channeltls_tests[] = {
{ "create", test_channeltls_create, TT_FORK, NULL, NULL },
{ "num_bytes_queued", test_channeltls_num_bytes_queued,
TT_FORK, NULL, NULL },
{ "overhead_estimate", test_channeltls_overhead_estimate,
TT_FORK, NULL, NULL },
END_OF_TESTCASES