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Implement two-channel queue estimate test

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This commit is contained in:
Andrea Shepard 2013-12-18 15:04:00 -08:00
parent 6e427c30af
commit e00fde1797
1 changed files with 133 additions and 0 deletions
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133
src/test/test_channel.c
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@ -33,6 +33,8 @@ static void make_fake_cell(cell_t *c);
static void make_fake_var_cell(var_cell_t *c);
static channel_t * new_fake_channel(void);
static void scheduler_release_channel_mock(channel_t *ch);
static void test_channel_multi(void *arg);
static void test_channel_queue_size(void *arg);
static void test_channel_write(void *arg);
@ -199,6 +201,136 @@ scheduler_release_channel_mock(channel_t *ch)
return;
}
static void
test_channel_multi(void *arg)
{
channel_t *ch1 = NULL, *ch2 = NULL;
uint64_t global_queue_estimate;
cell_t *cell = NULL;
(void)arg;
/* Accept cells to lower layer */
test_chan_accept_cells = 1;
/* Use default overhead factor */
test_overhead_estimate = 1.0f;
ch1 = new_fake_channel();
test_assert(ch1);
ch2 = new_fake_channel();
test_assert(ch2);
/* Initial queue size update */
channel_update_xmit_queue_size(ch1);
test_eq(ch1->bytes_queued_for_xmit, 0);
channel_update_xmit_queue_size(ch2);
test_eq(ch2->bytes_queued_for_xmit, 0);
global_queue_estimate = channel_get_global_queue_estimate();
test_eq(global_queue_estimate, 0);
/* Queue some cells, check queue estimates */
cell = tor_malloc_zero(sizeof(cell_t));
make_fake_cell(cell);
channel_write_cell(ch1, cell);
cell = tor_malloc_zero(sizeof(cell_t));
make_fake_cell(cell);
channel_write_cell(ch2, cell);
channel_update_xmit_queue_size(ch1);
channel_update_xmit_queue_size(ch2);
test_eq(ch1->bytes_queued_for_xmit, 0);
test_eq(ch2->bytes_queued_for_xmit, 0);
global_queue_estimate = channel_get_global_queue_estimate();
test_eq(global_queue_estimate, 0);
/* Stop accepting cells at lower layer */
test_chan_accept_cells = 0;
/* Queue some cells and check queue estimates */
cell = tor_malloc_zero(sizeof(cell_t));
make_fake_cell(cell);
channel_write_cell(ch1, cell);
channel_update_xmit_queue_size(ch1);
test_eq(ch1->bytes_queued_for_xmit, 512);
global_queue_estimate = channel_get_global_queue_estimate();
test_eq(global_queue_estimate, 512);
cell = tor_malloc_zero(sizeof(cell_t));
make_fake_cell(cell);
channel_write_cell(ch2, cell);
channel_update_xmit_queue_size(ch2);
test_eq(ch2->bytes_queued_for_xmit, 512);
global_queue_estimate = channel_get_global_queue_estimate();
test_eq(global_queue_estimate, 1024);
/* Allow cells through again */
test_chan_accept_cells = 1;
/* Flush chan 2 */
channel_flush_cells(ch2);
/* Update and check queue sizes */
channel_update_xmit_queue_size(ch1);
channel_update_xmit_queue_size(ch2);
test_eq(ch1->bytes_queued_for_xmit, 512);
test_eq(ch2->bytes_queued_for_xmit, 0);
global_queue_estimate = channel_get_global_queue_estimate();
test_eq(global_queue_estimate, 512);
/* Flush chan 1 */
channel_flush_cells(ch1);
/* Update and check queue sizes */
channel_update_xmit_queue_size(ch1);
channel_update_xmit_queue_size(ch2);
test_eq(ch1->bytes_queued_for_xmit, 0);
test_eq(ch2->bytes_queued_for_xmit, 0);
global_queue_estimate = channel_get_global_queue_estimate();
test_eq(global_queue_estimate, 0);
/* Now block again */
test_chan_accept_cells = 0;
/* Queue some cells */
cell = tor_malloc_zero(sizeof(cell_t));
make_fake_cell(cell);
channel_write_cell(ch1, cell);
cell = tor_malloc_zero(sizeof(cell_t));
make_fake_cell(cell);
channel_write_cell(ch2, cell);
/* Check the estimates */
channel_update_xmit_queue_size(ch1);
channel_update_xmit_queue_size(ch2);
test_eq(ch1->bytes_queued_for_xmit, 512);
test_eq(ch2->bytes_queued_for_xmit, 512);
global_queue_estimate = channel_get_global_queue_estimate();
test_eq(global_queue_estimate, 1024);
/* Now close channel 2; it should be subtracted from the global queue */
MOCK(scheduler_release_channel, scheduler_release_channel_mock);
channel_mark_for_close(ch2);
UNMOCK(scheduler_release_channel);
global_queue_estimate = channel_get_global_queue_estimate();
test_eq(global_queue_estimate, 512);
/* Now free everything */
MOCK(scheduler_release_channel, scheduler_release_channel_mock);
channel_free_all();
UNMOCK(scheduler_release_channel);
done:
tor_free(ch1);
tor_free(ch2);
return;
}
static void
test_channel_queue_size(void *arg)
{
@ -431,6 +563,7 @@ test_channel_write(void *arg)
}
struct testcase_t channel_tests[] = {
{ "multi", test_channel_multi, TT_FORK, NULL, NULL },
{ "queue_size", test_channel_queue_size, TT_FORK, NULL, NULL },
{ "write", test_channel_write, TT_FORK, NULL, NULL },
END_OF_TESTCASES