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#include "mersenne.h"
#include <library/cpp/testing/unittest/registar.h>
#include <util/stream/output.h>
#define UI32(x) x##ul
Y_UNIT_TEST_SUITE(TMersenneRndTest) {
template <class T>
inline void Test(const T* res, size_t len) {
TMersenne<T> m;
for (size_t i = 0; i < len; ++i) {
UNIT_ASSERT_EQUAL(m.GenRand(), res[i]);
}
}
Y_UNIT_TEST(Test32) {
const ui32 res[] = {
UI32(2325592414),
UI32(482149846),
UI32(4177211283),
UI32(3872387439),
UI32(1663027210),
UI32(2005191859),
UI32(666881213),
UI32(3289399202),
UI32(2514534568),
UI32(3882134983),
};
Test<ui32>(res, Y_ARRAY_SIZE(res));
}
Y_UNIT_TEST(Test64) {
const ui64 res[] = {
ULL(13735441942630277712),
ULL(10468394322237346228),
ULL(5051557175812687784),
ULL(8252857936377966838),
ULL(4330799099585512958),
ULL(327094098846779408),
ULL(6143667654738189122),
ULL(6387112078486713335),
ULL(3862502196831460488),
ULL(11231499428520958715),
};
Test<ui64>(res, Y_ARRAY_SIZE(res));
}
Y_UNIT_TEST(TestGenRand64) {
TMersenne<ui32> rng;
for (size_t i = 0; i < 100; ++i) {
UNIT_ASSERT(rng.GenRand64() > ULL(12345678912));
}
}
Y_UNIT_TEST(TestCopy32) {
TMersenne<ui32> r1(1);
TMersenne<ui32> r2(2);
UNIT_ASSERT_VALUES_UNEQUAL(r1.GenRand(), r2.GenRand());
r2 = r1;
UNIT_ASSERT_VALUES_EQUAL(r1.GenRand(), r2.GenRand());
}
Y_UNIT_TEST(TestCopy64) {
TMersenne<ui64> r1(1);
TMersenne<ui64> r2(2);
UNIT_ASSERT_VALUES_UNEQUAL(r1.GenRand(), r2.GenRand());
r2 = r1;
UNIT_ASSERT_VALUES_EQUAL(r1.GenRand(), r2.GenRand());
}
} // Y_UNIT_TEST_SUITE(TMersenneRndTest)
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