39 lines
1.2 KiB
C++
39 lines
1.2 KiB
C++
// Copyright (c) 2017 The Bitcoin Core developers
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// Distributed under the MIT software license, see the accompanying
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// file COPYING or http://www.opensource.org/licenses/mit-license.php.
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#include "random.h"
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#include "test/test_bitcoin.h"
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#include <boost/test/unit_test.hpp>
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BOOST_FIXTURE_TEST_SUITE(random_tests, BasicTestingSetup)
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BOOST_AUTO_TEST_CASE(osrandom_tests)
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{
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BOOST_CHECK(Random_SanityCheck());
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}
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BOOST_AUTO_TEST_CASE(fastrandom_tests)
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{
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// Check that deterministic FastRandomContexts are deterministic
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FastRandomContext ctx1(true);
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FastRandomContext ctx2(true);
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BOOST_CHECK_EQUAL(ctx1.rand32(), ctx2.rand32());
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BOOST_CHECK_EQUAL(ctx1.rand32(), ctx2.rand32());
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BOOST_CHECK_EQUAL(ctx1.rand64(), ctx2.rand64());
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BOOST_CHECK_EQUAL(ctx1.randbits(3), ctx2.randbits(3));
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BOOST_CHECK_EQUAL(ctx1.randbits(7), ctx2.randbits(7));
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BOOST_CHECK_EQUAL(ctx1.rand32(), ctx2.rand32());
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BOOST_CHECK_EQUAL(ctx1.randbits(3), ctx2.randbits(3));
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// Check that a nondeterministic ones are not
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FastRandomContext ctx3;
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FastRandomContext ctx4;
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BOOST_CHECK(ctx3.rand64() != ctx4.rand64()); // extremely unlikely to be equal
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}
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BOOST_AUTO_TEST_SUITE_END()
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