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authorMike Perry <mikeperry-git@fscked.org>2010-06-07 19:06:06 -0700
committerMike Perry <mikeperry-git@fscked.org>2010-06-09 00:22:39 -0700
commite3d5b516c635aaee73bace1bac00dade66cd9c22 (patch)
treeb4261f007c83e072ae65efe18e4ad7698658efdf /src/test
parent38770dd6a580e1620f257042b73ea563fc11e862 (diff)
downloadtor-e3d5b516c635aaee73bace1bac00dade66cd9c22.tar.gz
tor-e3d5b516c635aaee73bace1bac00dade66cd9c22.zip
Address some issues with unit tests.
Histogram conversion causes accuracy loss, and there are some boundary conditions when we hit 1000 circuits that cause false negative test results.
Diffstat (limited to 'src/test')
-rw-r--r--src/test/test.c13
1 files changed, 8 insertions, 5 deletions
diff --git a/src/test/test.c b/src/test/test.c
index eb06c762df..6cfb2f76b6 100644
--- a/src/test/test.c
+++ b/src/test/test.c
@@ -495,13 +495,12 @@ test_circuit_timeout(void)
CBT_DEFAULT_QUANTILE_CUTOFF/100.0);
circuit_build_times_set_timeout(&estimate);
log_warn(LD_CIRC, "Timeout1 is %lf, Xm is %d", timeout1, estimate.Xm);
- /* XXX: 5% distribution error may not be the right metric */
} while (fabs(circuit_build_times_cdf(&initial, timeout0) -
- circuit_build_times_cdf(&initial, timeout1)) > 0.05
- /* 5% error */
+ circuit_build_times_cdf(&initial, timeout1)) > 0.02
+ /* 2% error */
&& estimate.total_build_times < CBT_NCIRCUITS_TO_OBSERVE);
- test_assert(estimate.total_build_times < CBT_NCIRCUITS_TO_OBSERVE);
+ test_assert(estimate.total_build_times <= CBT_NCIRCUITS_TO_OBSERVE);
circuit_build_times_update_state(&estimate, &state);
test_assert(circuit_build_times_parse_state(&final, &state, &msg) == 0);
@@ -513,6 +512,7 @@ test_circuit_timeout(void)
circuit_build_times_set_timeout(&final);
log_warn(LD_CIRC, "Timeout2 is %lf, Xm is %d", timeout2, final.Xm);
+ /* 5% here because some accuracy is lost due to histogram conversion */
test_assert(fabs(circuit_build_times_cdf(&initial, timeout0) -
circuit_build_times_cdf(&initial, timeout2)) < 0.05);
@@ -581,7 +581,10 @@ test_circuit_timeout(void)
/* Check rollback index. Should match top of loop. */
test_assert(build_times_idx == estimate.build_times_idx);
- test_assert(total_build_times == estimate.total_build_times);
+ // This can fail if estimate.total_build_times == 1000, because
+ // in that case, rewind actually causes us to lose timeouts
+ if (total_build_times != CBT_NCIRCUITS_TO_OBSERVE)
+ test_assert(total_build_times == estimate.total_build_times);
/* Now simulate that the network has become live and we need
* a change */