commit 95a4f2d5255185be88bb40670b63b450833990af Author: Nick Mathewson nickm@torproject.org Date: Wed Apr 5 09:32:25 2017 -0400

Additional unit tests to improve conscache coverage --- src/test/test_conscache.c | 84 +++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 84 insertions(+)

diff --git a/src/test/test_conscache.c b/src/test/test_conscache.c index cc40476..12184f0 100644 --- a/src/test/test_conscache.c +++ b/src/test/test_conscache.c @@ -11,6 +11,19 @@ #endif

static void +test_conscache_open_failure(void *arg) +{ + (void) arg; + /* Try opening a directory that doesn't exist and which we shouldn't be + * able to create. */ + consensus_cache_t *cache = consensus_cache_open("a/b/c/d/e/f/g", 128); + tt_ptr_op(cache, OP_EQ, NULL); + + done: + ; +} + +static void test_conscache_simple_usage(void *arg) { (void)arg; @@ -246,12 +259,83 @@ test_conscache_cleanup(void *arg) consensus_cache_free(cache); }

+static void +test_conscache_filter(void *arg) +{ + (void)arg; + const int N = 30; + smartlist_t *lst = NULL; + + /* Make a temporary datadir for these tests */ + char *ddir_fname = tor_strdup(get_fname_rnd("datadir_cache")); + tor_free(get_options_mutable()->DataDirectory); + get_options_mutable()->DataDirectory = tor_strdup(ddir_fname); + check_private_dir(ddir_fname, CPD_CREATE, NULL); + consensus_cache_t *cache = consensus_cache_open("cons", 128); + + tt_assert(cache); + + /* Create a bunch of entries with different labels */ + int i; + for (i = 0; i < N; ++i) { + config_line_t *labels = NULL; + char num[8]; + tor_snprintf(num, sizeof(num), "%d", i); + config_line_append(&labels, "test-id", "filter"); + config_line_append(&labels, "index", num); + tor_snprintf(num, sizeof(num), "%d", i % 3); + config_line_append(&labels, "mod3", num); + tor_snprintf(num, sizeof(num), "%d", i % 5); + config_line_append(&labels, "mod5", num); + + size_t bodylen = i * 3; + uint8_t *body = tor_malloc(bodylen); + memset(body, i, bodylen); + consensus_cache_entry_t *ent = + consensus_cache_add(cache, labels, body, bodylen); + tor_free(body); + config_free_lines(labels); + tt_assert(ent); + consensus_cache_entry_decref(ent); + } + + lst = smartlist_new(); + /* Find nothing. */ + consensus_cache_find_all(lst, cache, "mod5", "5"); + tt_int_op(smartlist_len(lst), OP_EQ, 0); + /* Find everything. */ + consensus_cache_find_all(lst, cache, "test-id", "filter"); + tt_int_op(smartlist_len(lst), OP_EQ, N); + + /* Now filter to find the entries that have i%3 == 1 */ + consensus_cache_filter_list(lst, "mod3", "1"); + tt_int_op(smartlist_len(lst), OP_EQ, 10); + /* Now filter to find the entries that also have i%5 == 3 */ + consensus_cache_filter_list(lst, "mod5", "3"); + tt_int_op(smartlist_len(lst), OP_EQ, 2); + /* So now we have those entries for which i%15 == 13. */ + + consensus_cache_entry_t *ent1 = smartlist_get(lst, 0); + consensus_cache_entry_t *ent2 = smartlist_get(lst, 1); + const char *idx1 = consensus_cache_entry_get_value(ent1, "index"); + const char *idx2 = consensus_cache_entry_get_value(ent2, "index"); + tt_assert( (!strcmp(idx1, "28") && !strcmp(idx2, "13")) || + (!strcmp(idx1, "13") && !strcmp(idx2, "28")) ); + + done: + tor_free(ddir_fname); + consensus_cache_free(cache); + smartlist_free(lst); +} + #define ENT(name) \ { #name, test_conscache_ ## name, TT_FORK, NULL, NULL }

struct testcase_t conscache_tests[] = { + ENT(open_failure), ENT(simple_usage), ENT(cleanup), + ENT(filter), END_OF_TESTCASES };