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Address some issues with unit tests.

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Histogram conversion causes accuracy loss, and there are some
boundary conditions when we hit 1000 circuits that cause
false negative test results.
This commit is contained in:
Mike Perry 2010-06-07 19:06:06 -07:00
parent 38770dd6a5
commit e3d5b516c6
1 changed files with 8 additions and 5 deletions
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11
src/test/test.c
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@ -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);
@ -581,6 +581,9 @@ test_circuit_timeout(void)
/* Check rollback index. Should match top of loop. */
test_assert(build_times_idx == estimate.build_times_idx);
// 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