cerc-io/solidity
11
0
Fork 0
mirror of https://github.com/ethereum/solidity synced 2023-10-03 13:03:40 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

[yul-phaser] SimulationRNG: Use a single, shared and seedable generator

Browse Source
This commit is contained in:
Kamil Śliwak
2020-02-16 02:18:21 +01:00
parent 342a4e5dee
commit db140a667a
3 changed files with 93 additions and 7 deletions
Download Patch File Download Diff File Expand all files Collapse all files
test/yulPhaser/SimulationRNG.cpp
+66
View File
@@ -63,6 +63,39 @@ BOOST_AUTO_TEST_CASE(uniformInt_returns_different_values_when_called_multiple_ti
BOOST_TEST(counts1 != counts2);
}
BOOST_AUTO_TEST_CASE(uniformInt_can_be_reset)
{
constexpr size_t numSamples = 10;
constexpr uint32_t minValue = 50;
constexpr uint32_t maxValue = 80;
SimulationRNG::reset(1);
vector<uint32_t> samples1;
for (uint32_t i = 0; i < numSamples; ++i)
samples1.push_back(SimulationRNG::uniformInt(minValue, maxValue));
vector<uint32_t> samples2;
for (uint32_t i = 0; i < numSamples; ++i)
samples2.push_back(SimulationRNG::uniformInt(minValue, maxValue));
SimulationRNG::reset(1);
vector<uint32_t> samples3;
for (uint32_t i = 0; i < numSamples; ++i)
samples3.push_back(SimulationRNG::uniformInt(minValue, maxValue));
SimulationRNG::reset(2);
vector<uint32_t> samples4;
for (uint32_t i = 0; i < numSamples; ++i)
samples4.push_back(SimulationRNG::uniformInt(minValue, maxValue));
BOOST_TEST(samples1 != samples2);
BOOST_TEST(samples1 == samples3);
BOOST_TEST(samples1 != samples4);
BOOST_TEST(samples2 != samples3);
BOOST_TEST(samples2 != samples4);
BOOST_TEST(samples3 != samples4);
}
BOOST_AUTO_TEST_CASE(binomialInt_returns_different_values_when_called_multiple_times)
{
constexpr uint32_t numSamples = 1000;
@@ -89,6 +122,39 @@ BOOST_AUTO_TEST_CASE(binomialInt_returns_different_values_when_called_multiple_t
BOOST_TEST(counts1 != counts2);
}
BOOST_AUTO_TEST_CASE(binomialInt_can_be_reset)
{
constexpr size_t numSamples = 10;
constexpr uint32_t numTrials = 10;
constexpr double successProbability = 0.6;
SimulationRNG::reset(1);
vector<uint32_t> samples1;
for (uint32_t i = 0; i < numSamples; ++i)
samples1.push_back(SimulationRNG::binomialInt(numTrials, successProbability));
vector<uint32_t> samples2;
for (uint32_t i = 0; i < numSamples; ++i)
samples2.push_back(SimulationRNG::binomialInt(numTrials, successProbability));
SimulationRNG::reset(1);
vector<uint32_t> samples3;
for (uint32_t i = 0; i < numSamples; ++i)
samples3.push_back(SimulationRNG::binomialInt(numTrials, successProbability));
SimulationRNG::reset(2);
vector<uint32_t> samples4;
for (uint32_t i = 0; i < numSamples; ++i)
samples4.push_back(SimulationRNG::binomialInt(numTrials, successProbability));
BOOST_TEST(samples1 != samples2);
BOOST_TEST(samples1 == samples3);
BOOST_TEST(samples1 != samples4);
BOOST_TEST(samples2 != samples3);
BOOST_TEST(samples2 != samples4);
BOOST_TEST(samples3 != samples4);
}
BOOST_AUTO_TEST_SUITE_END()
BOOST_AUTO_TEST_SUITE_END()