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Consdiffmgr test: Make sure that diffs are removable

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A diff is removable as soon as it no longer takes you to the most
recent consensus of the appropriate flavor.
This commit is contained in:
Nick Mathewson 2017-04-15 11:13:39 -04:00
parent 35f6b678ab
commit 5726fec9c2
1 changed files with 55 additions and 1 deletions
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56
src/test/test_consdiffmgr.c
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@ -511,6 +511,60 @@ test_consdiffmgr_cleanup_no_valid_after(void *arg)
config_free_lines(labels);
}
static void
test_consdiffmgr_cleanup_old_diffs(void *arg)
{
(void)arg;
#define N 4
char *md_body[N];
networkstatus_t *md_ns[N];
uint8_t md_ns_sha3[N][DIGEST256_LEN];
int i;
/* Make sure that the cleanup function removes diffs to the not-most-recent
* consensus. */
MOCK(cpuworker_queue_work, mock_cpuworker_queue_work);
/* Create a bunch of consensus things at 15-second intervals. */
time_t start = approx_time() - 120;
for (i = 0; i < N; ++i) {
time_t when = start + i * 15;
md_body[i] = fake_ns_body_new(FLAV_MICRODESC, when);
md_ns[i] = fake_ns_new(FLAV_MICRODESC, when);
crypto_digest256((char *)md_ns_sha3[i], md_body[i], strlen(md_body[i]),
DIGEST_SHA3_256);
}
/* add the first 3. */
tt_int_op(0, OP_EQ, consdiffmgr_add_consensus(md_body[0], md_ns[0]));
tt_int_op(0, OP_EQ, consdiffmgr_add_consensus(md_body[1], md_ns[1]));
tt_int_op(0, OP_EQ, consdiffmgr_add_consensus(md_body[2], md_ns[2]));
/* Make diffs. */
consdiffmgr_rescan();
tt_ptr_op(NULL, OP_NE, fake_cpuworker_queue);
tt_int_op(2, OP_EQ, smartlist_len(fake_cpuworker_queue));
tt_int_op(0, OP_EQ, mock_cpuworker_run_work());
mock_cpuworker_handle_replies();
tt_ptr_op(NULL, OP_EQ, fake_cpuworker_queue);
/* Nothing is deletable now */
tt_int_op(0, OP_EQ, consdiffmgr_cleanup());
/* Now add an even-more-recent consensus; this should make all previous
* diffs deletable */
tt_int_op(0, OP_EQ, consdiffmgr_add_consensus(md_body[3], md_ns[3]));
tt_int_op(2, OP_EQ, consdiffmgr_cleanup());
done:
for (i = 0; i < N; ++i) {
tor_free(md_body[i]);
networkstatus_vote_free(md_ns[i]);
}
UNMOCK(cpuworker_queue_work);
#undef N
}
#define TEST(name) \
{ #name, test_consdiffmgr_ ## name , TT_FORK, &setup_diffmgr, NULL }
@ -525,7 +579,7 @@ struct testcase_t consdiffmgr_tests[] = {
TEST(cleanup_old),
TEST(cleanup_bad_valid_after),
TEST(cleanup_no_valid_after),
//TEST(cleanup_old_diffs),
TEST(cleanup_old_diffs),
END_OF_TESTCASES
};