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Differential D701 Diff 1812 src/test/random_tests.cpp

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src/test/random_tests.cpp

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} }
BOOST_AUTO_TEST_CASE(fastrandom_randbits) { BOOST_AUTO_TEST_CASE(fastrandom_randbits) {
FastRandomContext ctx1; FastRandomContext ctx1;
FastRandomContext ctx2; FastRandomContext ctx2;
for (int bits = 0; bits < 63; ++bits) { for (int bits = 0; bits < 63; ++bits) {
for (int j = 0; j < 1000; ++j) { for (int j = 0; j < 1000; ++j) {
uint64_t rangebits = ctx1.randbits(bits); uint64_t rangebits = ctx1.randbits(bits);
BOOST_CHECK_EQUAL(rangebits >> bits, 0); BOOST_CHECK_EQUAL(rangebits >> bits, uint64_t(0));
uint64_t range = uint64_t(1) << bits | rangebits; uint64_t range = uint64_t(1) << bits | rangebits;
uint64_t rand = ctx2.randrange(range); uint64_t rand = ctx2.randrange(range);
BOOST_CHECK(rand < range); BOOST_CHECK(rand < range);
} }
} }
} }
BOOST_AUTO_TEST_SUITE_END() BOOST_AUTO_TEST_SUITE_END()