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Add consensus weight calculation tests
This commit is contained in:
Matt Traudt
Nick Mathewson
parent
909ee0e55f
commit
7ba0ae9426
@ -2,3 +2,6 @@
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- Add new consensus method that initializes bw weights to 1 instead of 0. This
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prevents a zero weight from making it all the way to the end (happens in
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small testing networks) and causing an error. Fixes bug 14881.
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o Minor features (unit tests):
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- Add test for networkstatus_compute_bw_weights_v10
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@ -913,7 +913,7 @@ networkstatus_check_weights(int64_t Wgg, int64_t Wgd, int64_t Wmg,
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*
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* It returns true if weights could be computed, false otherwise.
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*/
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static int
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int
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networkstatus_compute_bw_weights_v10(smartlist_t *chunks, int64_t G,
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int64_t M, int64_t E, int64_t D,
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int64_t T, int64_t weight_scale)
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@ -238,6 +238,10 @@ STATIC smartlist_t *dirvote_compute_params(smartlist_t *votes, int method,
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int total_authorities);
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STATIC char *compute_consensus_package_lines(smartlist_t *votes);
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STATIC char *make_consensus_method_list(int low, int high, const char *sep);
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STATIC int
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networkstatus_compute_bw_weights_v10(smartlist_t *chunks, int64_t G,
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int64_t M, int64_t E, int64_t D,
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int64_t T, int64_t weight_scale);
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#endif
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#endif
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@ -1874,6 +1874,163 @@ test_routerstatus_for_v3ns(routerstatus_t *rs, time_t now)
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return;
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}
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static void
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test_dir_networkstatus_compute_bw_weights_v10(void *arg)
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{
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(void) arg;
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smartlist_t *chunks = smartlist_new();
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int64_t G, M, E, D, T, weight_scale;
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int ret;
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weight_scale = 10000;
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/* no case. one or more of the values is 0 */
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G = M = E = D = 0;
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T = G + M + E + D;
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ret = networkstatus_compute_bw_weights_v10(chunks, G, M, E, D, T, weight_scale);
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tt_int_op(ret, OP_EQ, 0);
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tt_int_op(smartlist_len(chunks), OP_EQ, 0);
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/* case 1 */
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/* XXX dir-spec not followed? See #20272. If it isn't closed, then this is
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* testing current behavior, not spec. */
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G = E = 10;
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M = D = 1;
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T = G + M + E + D;
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ret = networkstatus_compute_bw_weights_v10(chunks, G, M, E, D, T, weight_scale);
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tt_int_op(ret, OP_EQ, 1);
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tt_int_op(smartlist_len(chunks), OP_EQ, 1);
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tt_str_op(smartlist_get(chunks, 0), OP_EQ, "bandwidth-weights Wbd=3333 "
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"Wbe=3000 Wbg=3000 Wbm=10000 Wdb=10000 Web=10000 Wed=3333 Wee=7000 "
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"Weg=3333 Wem=7000 Wgb=10000 Wgd=3333 Wgg=7000 Wgm=7000 Wmb=10000 Wmd=3333 "
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"Wme=3000 Wmg=3000 Wmm=10000\n");
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smartlist_clear(chunks);
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/* case 2a E scarce */
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M = 100;
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G = 20;
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E = D = 5;
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T = G + M + E + D;
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ret = networkstatus_compute_bw_weights_v10(chunks, G, M, E, D, T, weight_scale);
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tt_int_op(ret, OP_EQ, 1);
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tt_str_op(smartlist_get(chunks, 0), OP_EQ, "bandwidth-weights Wbd=0 Wbe=0 "
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"Wbg=0 Wbm=10000 Wdb=10000 Web=10000 Wed=10000 Wee=10000 Weg=10000 "
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"Wem=10000 Wgb=10000 Wgd=0 Wgg=10000 Wgm=10000 Wmb=10000 Wmd=0 Wme=0 Wmg=0 "
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"Wmm=10000\n");
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smartlist_clear(chunks);
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/* case 2a G scarce */
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M = 100;
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E = 20;
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G = D = 5;
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T = G + M + E + D;
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ret = networkstatus_compute_bw_weights_v10(chunks, G, M, E, D, T, weight_scale);
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tt_int_op(ret, OP_EQ, 1);
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tt_str_op(smartlist_get(chunks, 0), OP_EQ, "bandwidth-weights Wbd=0 Wbe=0 "
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"Wbg=0 Wbm=10000 Wdb=10000 Web=10000 Wed=0 Wee=10000 Weg=0 Wem=10000 "
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"Wgb=10000 Wgd=10000 Wgg=10000 Wgm=10000 Wmb=10000 Wmd=0 Wme=0 Wmg=0 "
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"Wmm=10000\n");
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smartlist_clear(chunks);
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/* case 2b1 (Wgg=1, Wmd=Wgd) */
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M = 10;
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E = 30;
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G = 10;
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D = 100;
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T = G + M + E + D;
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ret = networkstatus_compute_bw_weights_v10(chunks, G, M, E, D, T, weight_scale);
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tt_int_op(ret, OP_EQ, 1);
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tt_str_op(smartlist_get(chunks, 0), OP_EQ, "bandwidth-weights Wbd=4000 Wbe=0 "
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"Wbg=0 Wbm=10000 Wdb=10000 Web=10000 Wed=2000 Wee=10000 Weg=2000 Wem=10000 "
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"Wgb=10000 Wgd=4000 Wgg=10000 Wgm=10000 Wmb=10000 Wmd=4000 Wme=0 Wmg=0 "
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"Wmm=10000\n");
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smartlist_clear(chunks);
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/* case 2b2 */
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M = 60;
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E = 30;
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G = 10;
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D = 100;
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T = G + M + E + D;
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ret = networkstatus_compute_bw_weights_v10(chunks, G, M, E, D, T, weight_scale);
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tt_int_op(ret, OP_EQ, 1);
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tt_str_op(smartlist_get(chunks, 0), OP_EQ, "bandwidth-weights Wbd=666 Wbe=0 "
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"Wbg=0 Wbm=10000 Wdb=10000 Web=10000 Wed=3666 Wee=10000 Weg=3666 Wem=10000 "
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"Wgb=10000 Wgd=5668 Wgg=10000 Wgm=10000 Wmb=10000 Wmd=666 Wme=0 Wmg=0 "
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"Wmm=10000\n");
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smartlist_clear(chunks);
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/* case 2b3 */
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/* XXX I can't get a combination of values that hits this case without error, so
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* this just tests that it fails. See #20285 */
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/* (E < T/3 && G < T/3) && (E+D>=G || G+D>=E) && (M > T/3) */
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M = 80;
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E = 30;
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G = 30;
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D = 30;
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T = G + M + E + D;
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ret = networkstatus_compute_bw_weights_v10(chunks, G, M, E, D, T, weight_scale);
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tt_int_op(ret, OP_EQ, 0);
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smartlist_clear(chunks);
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/* case 3a G scarce */
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M = 10;
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E = 30;
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G = 10;
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D = 5;
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T = G + M + E + D;
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ret = networkstatus_compute_bw_weights_v10(chunks, G, M, E, D, T, weight_scale);
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tt_int_op(ret, OP_EQ, 1);
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tt_str_op(smartlist_get(chunks, 0), OP_EQ, "bandwidth-weights Wbd=0 Wbe=3333 "
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"Wbg=0 Wbm=10000 Wdb=10000 Web=10000 Wed=0 Wee=6667 Weg=0 Wem=6667 "
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"Wgb=10000 Wgd=10000 Wgg=10000 Wgm=10000 Wmb=10000 Wmd=0 Wme=3333 Wmg=0 "
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"Wmm=10000\n");
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smartlist_clear(chunks);
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/* case 3a E scarce */
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M = 10;
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E = 10;
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G = 30;
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D = 5;
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T = G + M + E + D;
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ret = networkstatus_compute_bw_weights_v10(chunks, G, M, E, D, T, weight_scale);
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tt_int_op(ret, OP_EQ, 1);
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tt_str_op(smartlist_get(chunks, 0), OP_EQ, "bandwidth-weights Wbd=0 Wbe=0 "
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"Wbg=3333 Wbm=10000 Wdb=10000 Web=10000 Wed=10000 Wee=10000 Weg=10000 "
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"Wem=10000 Wgb=10000 Wgd=0 Wgg=6667 Wgm=6667 Wmb=10000 Wmd=0 Wme=0 "
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"Wmg=3333 Wmm=10000\n");
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smartlist_clear(chunks);
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/* case 3bg */
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M = 10;
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E = 30;
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G = 10;
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D = 10;
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T = G + M + E + D;
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ret = networkstatus_compute_bw_weights_v10(chunks, G, M, E, D, T, weight_scale);
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tt_int_op(ret, OP_EQ, 1);
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tt_str_op(smartlist_get(chunks, 0), OP_EQ, "bandwidth-weights Wbd=0 Wbe=3334 "
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"Wbg=0 Wbm=10000 Wdb=10000 Web=10000 Wed=0 Wee=6666 Weg=0 Wem=6666 "
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"Wgb=10000 Wgd=10000 Wgg=10000 Wgm=10000 Wmb=10000 Wmd=0 Wme=3334 Wmg=0 "
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"Wmm=10000\n");
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smartlist_clear(chunks);
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/* case 3be */
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M = 10;
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E = 10;
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G = 30;
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D = 10;
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T = G + M + E + D;
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ret = networkstatus_compute_bw_weights_v10(chunks, G, M, E, D, T, weight_scale);
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tt_int_op(ret, OP_EQ, 1);
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tt_str_op(smartlist_get(chunks, 0), OP_EQ, "bandwidth-weights Wbd=0 Wbe=0 "
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"Wbg=3334 Wbm=10000 Wdb=10000 Web=10000 Wed=10000 Wee=10000 Weg=10000 "
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"Wem=10000 Wgb=10000 Wgd=0 Wgg=6666 Wgm=6666 Wmb=10000 Wmd=0 Wme=0 "
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"Wmg=3334 Wmm=10000\n");
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smartlist_clear(chunks);
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done:
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return;
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}
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static authority_cert_t *mock_cert;
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static authority_cert_t *
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@ -5555,6 +5712,7 @@ struct testcase_t dir_tests[] = {
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DIR_ARG(find_dl_schedule, TT_FORK, "cf"),
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DIR_ARG(find_dl_schedule, TT_FORK, "ca"),
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DIR(assumed_flags, 0),
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DIR(networkstatus_compute_bw_weights_v10, 0),
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END_OF_TESTCASES
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};
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