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test: Make bloom tests deterministic

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MarcoFalke 2019-02-01 17:06:32 -05:00
parent 3e38d40873
commit fae169c95e
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4 changed files with 26 additions and 11 deletions
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18
src/test/bloom_tests.cpp
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@ -461,6 +461,9 @@ static std::vector<unsigned char> RandomData()
BOOST_AUTO_TEST_CASE(rolling_bloom)
{
SeedInsecureRand(/* deterministic */ true);
g_mock_deterministic_tests = true;
// last-100-entry, 1% false positive:
CRollingBloomFilter rb1(100, 0.01);
@ -485,12 +488,8 @@ BOOST_AUTO_TEST_CASE(rolling_bloom)
if (rb1.contains(RandomData()))
++nHits;
}
// Run test_bitcoin with --log_level=message to see BOOST_TEST_MESSAGEs:
BOOST_TEST_MESSAGE("RollingBloomFilter got " << nHits << " false positives (~100 expected)");
// Insanely unlikely to get a fp count outside this range:
BOOST_CHECK(nHits > 25);
BOOST_CHECK(nHits < 175);
// Expect about 100 hits
BOOST_CHECK_EQUAL(nHits, 75);
BOOST_CHECK(rb1.contains(data[DATASIZE-1]));
rb1.reset();
@ -517,10 +516,8 @@ BOOST_AUTO_TEST_CASE(rolling_bloom)
if (rb1.contains(data[i]))
++nHits;
}
// Expect about 5 false positives, more than 100 means
// something is definitely broken.
BOOST_TEST_MESSAGE("RollingBloomFilter got " << nHits << " false positives (~5 expected)");
BOOST_CHECK(nHits < 100);
// Expect about 5 false positives
BOOST_CHECK_EQUAL(nHits, 6);
// last-1000-entry, 0.01% false positive:
CRollingBloomFilter rb2(1000, 0.001);
@ -531,6 +528,7 @@ BOOST_AUTO_TEST_CASE(rolling_bloom)
for (int i = 0; i < DATASIZE; i++) {
BOOST_CHECK(rb2.contains(data[i]));
}
g_mock_deterministic_tests = false;
}
BOOST_AUTO_TEST_SUITE_END()