lbrycrd/src/test/random_tests.cpp
MeshCollider 1a445343f6 scripted-diff: Replace #include "" with #include <> (ryanofsky)
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for f in \
  src/*.cpp \
  src/*.h \
  src/bench/*.cpp \
  src/bench/*.h \
  src/compat/*.cpp \
  src/compat/*.h \
  src/consensus/*.cpp \
  src/consensus/*.h \
  src/crypto/*.cpp \
  src/crypto/*.h \
  src/crypto/ctaes/*.h \
  src/policy/*.cpp \
  src/policy/*.h \
  src/primitives/*.cpp \
  src/primitives/*.h \
  src/qt/*.cpp \
  src/qt/*.h \
  src/qt/test/*.cpp \
  src/qt/test/*.h \
  src/rpc/*.cpp \
  src/rpc/*.h \
  src/script/*.cpp \
  src/script/*.h \
  src/support/*.cpp \
  src/support/*.h \
  src/support/allocators/*.h \
  src/test/*.cpp \
  src/test/*.h \
  src/wallet/*.cpp \
  src/wallet/*.h \
  src/wallet/test/*.cpp \
  src/wallet/test/*.h \
  src/zmq/*.cpp \
  src/zmq/*.h
do
  base=${f%/*}/ relbase=${base#src/} sed -i "s:#include \"\(.*\)\"\(.*\):if test -e \$base'\\1'; then echo \"#include <\"\$relbase\"\\1>\\2\"; else echo \"#include <\\1>\\2\"; fi:e" $f
done
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2017-11-16 08:23:01 +13:00

60 lines
2 KiB
C++

// Copyright (c) 2017 The Bitcoin Core developers
// Distributed under the MIT software license, see the accompanying
// file COPYING or http://www.opensource.org/licenses/mit-license.php.
#include <random.h>
#include <test/test_bitcoin.h>
#include <boost/test/unit_test.hpp>
BOOST_FIXTURE_TEST_SUITE(random_tests, BasicTestingSetup)
BOOST_AUTO_TEST_CASE(osrandom_tests)
{
BOOST_CHECK(Random_SanityCheck());
}
BOOST_AUTO_TEST_CASE(fastrandom_tests)
{
// Check that deterministic FastRandomContexts are deterministic
FastRandomContext ctx1(true);
FastRandomContext ctx2(true);
BOOST_CHECK_EQUAL(ctx1.rand32(), ctx2.rand32());
BOOST_CHECK_EQUAL(ctx1.rand32(), ctx2.rand32());
BOOST_CHECK_EQUAL(ctx1.rand64(), ctx2.rand64());
BOOST_CHECK_EQUAL(ctx1.randbits(3), ctx2.randbits(3));
BOOST_CHECK(ctx1.randbytes(17) == ctx2.randbytes(17));
BOOST_CHECK(ctx1.rand256() == ctx2.rand256());
BOOST_CHECK_EQUAL(ctx1.randbits(7), ctx2.randbits(7));
BOOST_CHECK(ctx1.randbytes(128) == ctx2.randbytes(128));
BOOST_CHECK_EQUAL(ctx1.rand32(), ctx2.rand32());
BOOST_CHECK_EQUAL(ctx1.randbits(3), ctx2.randbits(3));
BOOST_CHECK(ctx1.rand256() == ctx2.rand256());
BOOST_CHECK(ctx1.randbytes(50) == ctx2.randbytes(50));
// Check that a nondeterministic ones are not
FastRandomContext ctx3;
FastRandomContext ctx4;
BOOST_CHECK(ctx3.rand64() != ctx4.rand64()); // extremely unlikely to be equal
BOOST_CHECK(ctx3.rand256() != ctx4.rand256());
BOOST_CHECK(ctx3.randbytes(7) != ctx4.randbytes(7));
}
BOOST_AUTO_TEST_CASE(fastrandom_randbits)
{
FastRandomContext ctx1;
FastRandomContext ctx2;
for (int bits = 0; bits < 63; ++bits) {
for (int j = 0; j < 1000; ++j) {
uint64_t rangebits = ctx1.randbits(bits);
BOOST_CHECK_EQUAL(rangebits >> bits, 0);
uint64_t range = ((uint64_t)1) << bits | rangebits;
uint64_t rand = ctx2.randrange(range);
BOOST_CHECK(rand < range);
}
}
}
BOOST_AUTO_TEST_SUITE_END()