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Differential D3246 Diff 9360 src/wallet/test/wallet_tests.cpp

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src/wallet/test/wallet_tests.cpp

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} }
static bool equal_sets(CoinSet a, CoinSet b) { static bool equal_sets(CoinSet a, CoinSet b) {
std::pair<CoinSet::iterator, CoinSet::iterator> ret = std::pair<CoinSet::iterator, CoinSet::iterator> ret =
mismatch(a.begin(), a.end(), b.begin()); mismatch(a.begin(), a.end(), b.begin());
return ret.first == a.end() && ret.second == b.end(); return ret.first == a.end() && ret.second == b.end();
} }
CoinEligibilityFilter filter_standard(1, 6, 0);
CoinEligibilityFilter filter_confirmed(1, 1, 0);
CoinEligibilityFilter filter_standard_extra(6, 6, 0);
BOOST_AUTO_TEST_CASE(coin_selection_tests) { BOOST_AUTO_TEST_CASE(coin_selection_tests) {
CoinSet setCoinsRet, setCoinsRet2; CoinSet setCoinsRet, setCoinsRet2;
Amount nValueRet; Amount nValueRet;
const CWallet wallet(Params(), "dummy", CWalletDBWrapper::CreateDummy()); const CWallet wallet(Params(), "dummy", CWalletDBWrapper::CreateDummy());
LOCK(walletCriticalSection); LOCK(walletCriticalSection);
// test multiple times to allow for differences in the shuffle order // test multiple times to allow for differences in the shuffle order
for (int i = 0; i < RUN_TESTS; i++) { for (int i = 0; i < RUN_TESTS; i++) {
empty_wallet(); empty_wallet();
// with an empty wallet we can't even pay one cent // with an empty wallet we can't even pay one cent
BOOST_CHECK(!wallet.SelectCoinsMinConf(1 * CENT, 1, 6, 0, vCoins, BOOST_CHECK(!wallet.SelectCoinsMinConf(1 * CENT, filter_standard,
setCoinsRet, nValueRet)); vCoins, setCoinsRet, nValueRet));
// add a new 1 cent coin // add a new 1 cent coin
add_coin(wallet, 1 * CENT, 4); add_coin(wallet, 1 * CENT, 4);
// with a new 1 cent coin, we still can't find a mature 1 cent // with a new 1 cent coin, we still can't find a mature 1 cent
BOOST_CHECK(!wallet.SelectCoinsMinConf(1 * CENT, 1, 6, 0, vCoins, BOOST_CHECK(!wallet.SelectCoinsMinConf(1 * CENT, filter_standard,
setCoinsRet, nValueRet)); vCoins, setCoinsRet, nValueRet));
// but we can find a new 1 cent // but we can find a new 1 cent
BOOST_CHECK(wallet.SelectCoinsMinConf(1 * CENT, 1, 1, 0, vCoins, BOOST_CHECK(wallet.SelectCoinsMinConf(1 * CENT, filter_confirmed,
setCoinsRet, nValueRet)); vCoins, setCoinsRet, nValueRet));
BOOST_CHECK_EQUAL(nValueRet, 1 * CENT); BOOST_CHECK_EQUAL(nValueRet, 1 * CENT);
// add a mature 2 cent coin // add a mature 2 cent coin
add_coin(wallet, 2 * CENT); add_coin(wallet, 2 * CENT);
// we can't make 3 cents of mature coins // we can't make 3 cents of mature coins
BOOST_CHECK(!wallet.SelectCoinsMinConf(3 * CENT, 1, 6, 0, vCoins, BOOST_CHECK(!wallet.SelectCoinsMinConf(3 * CENT, filter_standard,
setCoinsRet, nValueRet)); vCoins, setCoinsRet, nValueRet));
// we can make 3 cents of new coins // we can make 3 cents of new coins
BOOST_CHECK(wallet.SelectCoinsMinConf(3 * CENT, 1, 1, 0, vCoins, BOOST_CHECK(wallet.SelectCoinsMinConf(3 * CENT, filter_confirmed,
setCoinsRet, nValueRet)); vCoins, setCoinsRet, nValueRet));
BOOST_CHECK_EQUAL(nValueRet, 3 * CENT); BOOST_CHECK_EQUAL(nValueRet, 3 * CENT);
// add a mature 5 cent coin, // add a mature 5 cent coin,
add_coin(wallet, 5 * CENT); add_coin(wallet, 5 * CENT);
// a new 10 cent coin sent from one of our own addresses // a new 10 cent coin sent from one of our own addresses
add_coin(wallet, 10 * CENT, 3, true); add_coin(wallet, 10 * CENT, 3, true);
// and a mature 20 cent coin // and a mature 20 cent coin
add_coin(wallet, 20 * CENT); add_coin(wallet, 20 * CENT);
// now we have new: 1+10=11 (of which 10 was self-sent), and mature: // now we have new: 1+10=11 (of which 10 was self-sent), and mature:
// 2+5+20=27. total = 38 // 2+5+20=27. total = 38
// we can't make 38 cents only if we disallow new coins: // we can't make 38 cents only if we disallow new coins:
BOOST_CHECK(!wallet.SelectCoinsMinConf(38 * CENT, 1, 6, 0, vCoins, BOOST_CHECK(!wallet.SelectCoinsMinConf(38 * CENT, filter_standard,
setCoinsRet, nValueRet)); vCoins, setCoinsRet, nValueRet));
// we can't even make 37 cents if we don't allow new coins even if // we can't even make 37 cents if we don't allow new coins even if
// they're from us // they're from us
BOOST_CHECK(!wallet.SelectCoinsMinConf(38 * CENT, 6, 6, 0, vCoins, BOOST_CHECK(!wallet.SelectCoinsMinConf(38 * CENT, filter_standard_extra,
setCoinsRet, nValueRet)); vCoins, setCoinsRet, nValueRet));
// but we can make 37 cents if we accept new coins from ourself // but we can make 37 cents if we accept new coins from ourself
BOOST_CHECK(wallet.SelectCoinsMinConf(37 * CENT, 1, 6, 0, vCoins, BOOST_CHECK(wallet.SelectCoinsMinConf(37 * CENT, filter_standard,
setCoinsRet, nValueRet)); vCoins, setCoinsRet, nValueRet));
BOOST_CHECK_EQUAL(nValueRet, 37 * CENT); BOOST_CHECK_EQUAL(nValueRet, 37 * CENT);
// and we can make 38 cents if we accept all new coins // and we can make 38 cents if we accept all new coins
BOOST_CHECK(wallet.SelectCoinsMinConf(38 * CENT, 1, 1, 0, vCoins, BOOST_CHECK(wallet.SelectCoinsMinConf(38 * CENT, filter_confirmed,
setCoinsRet, nValueRet)); vCoins, setCoinsRet, nValueRet));
BOOST_CHECK_EQUAL(nValueRet, 38 * CENT); BOOST_CHECK_EQUAL(nValueRet, 38 * CENT);
// try making 34 cents from 1,2,5,10,20 - we can't do it exactly // try making 34 cents from 1,2,5,10,20 - we can't do it exactly
BOOST_CHECK(wallet.SelectCoinsMinConf(34 * CENT, 1, 1, 0, vCoins, BOOST_CHECK(wallet.SelectCoinsMinConf(34 * CENT, filter_confirmed,
setCoinsRet, nValueRet)); vCoins, setCoinsRet, nValueRet));
// but 35 cents is closest // but 35 cents is closest
BOOST_CHECK_EQUAL(nValueRet, 35 * CENT); BOOST_CHECK_EQUAL(nValueRet, 35 * CENT);
// the best should be 20+10+5. it's incredibly unlikely the 1 or 2 got // the best should be 20+10+5. it's incredibly unlikely the 1 or 2 got
// included (but possible) // included (but possible)
BOOST_CHECK_EQUAL(setCoinsRet.size(), 3U); BOOST_CHECK_EQUAL(setCoinsRet.size(), 3U);
// when we try making 7 cents, the smaller coins (1,2,5) are enough. We // when we try making 7 cents, the smaller coins (1,2,5) are enough. We
// should see just 2+5 // should see just 2+5
BOOST_CHECK(wallet.SelectCoinsMinConf(7 * CENT, 1, 1, 0, vCoins, BOOST_CHECK(wallet.SelectCoinsMinConf(7 * CENT, filter_confirmed,
setCoinsRet, nValueRet)); vCoins, setCoinsRet, nValueRet));
BOOST_CHECK_EQUAL(nValueRet, 7 * CENT); BOOST_CHECK_EQUAL(nValueRet, 7 * CENT);
BOOST_CHECK_EQUAL(setCoinsRet.size(), 2U); BOOST_CHECK_EQUAL(setCoinsRet.size(), 2U);
// when we try making 8 cents, the smaller coins (1,2,5) are exactly // when we try making 8 cents, the smaller coins (1,2,5) are exactly
// enough. // enough.
BOOST_CHECK(wallet.SelectCoinsMinConf(8 * CENT, 1, 1, 0, vCoins, BOOST_CHECK(wallet.SelectCoinsMinConf(8 * CENT, filter_confirmed,
setCoinsRet, nValueRet)); vCoins, setCoinsRet, nValueRet));
BOOST_CHECK(nValueRet == 8 * CENT); BOOST_CHECK(nValueRet == 8 * CENT);
BOOST_CHECK_EQUAL(setCoinsRet.size(), 3U); BOOST_CHECK_EQUAL(setCoinsRet.size(), 3U);
// when we try making 9 cents, no subset of smaller coins is enough, and // when we try making 9 cents, no subset of smaller coins is enough, and
// we get the next bigger coin (10) // we get the next bigger coin (10)
BOOST_CHECK(wallet.SelectCoinsMinConf(9 * CENT, 1, 1, 0, vCoins, BOOST_CHECK(wallet.SelectCoinsMinConf(9 * CENT, filter_confirmed,
setCoinsRet, nValueRet)); vCoins, setCoinsRet, nValueRet));
BOOST_CHECK_EQUAL(nValueRet, 10 * CENT); BOOST_CHECK_EQUAL(nValueRet, 10 * CENT);
BOOST_CHECK_EQUAL(setCoinsRet.size(), 1U); BOOST_CHECK_EQUAL(setCoinsRet.size(), 1U);
// now clear out the wallet and start again to test choosing between // now clear out the wallet and start again to test choosing between
// subsets of smaller coins and the next biggest coin // subsets of smaller coins and the next biggest coin
empty_wallet(); empty_wallet();
add_coin(wallet, 6 * CENT); add_coin(wallet, 6 * CENT);
add_coin(wallet, 7 * CENT); add_coin(wallet, 7 * CENT);
add_coin(wallet, 8 * CENT); add_coin(wallet, 8 * CENT);
add_coin(wallet, 20 * CENT); add_coin(wallet, 20 * CENT);
// now we have 6+7+8+20+30 = 71 cents total // now we have 6+7+8+20+30 = 71 cents total
add_coin(wallet, 30 * CENT); add_coin(wallet, 30 * CENT);
// check that we have 71 and not 72 // check that we have 71 and not 72
BOOST_CHECK(wallet.SelectCoinsMinConf(71 * CENT, 1, 1, 0, vCoins, BOOST_CHECK(wallet.SelectCoinsMinConf(71 * CENT, filter_confirmed,
setCoinsRet, nValueRet)); vCoins, setCoinsRet, nValueRet));
BOOST_CHECK(!wallet.SelectCoinsMinConf(72 * CENT, 1, 1, 0, vCoins, BOOST_CHECK(!wallet.SelectCoinsMinConf(72 * CENT, filter_confirmed,
setCoinsRet, nValueRet)); vCoins, setCoinsRet, nValueRet));
// now try making 16 cents. the best smaller coins can do is 6+7+8 = // now try making 16 cents. the best smaller coins can do is 6+7+8 =
// 21; not as good at the next biggest coin, 20 // 21; not as good at the next biggest coin, 20
BOOST_CHECK(wallet.SelectCoinsMinConf(16 * CENT, 1, 1, 0, vCoins, BOOST_CHECK(wallet.SelectCoinsMinConf(16 * CENT, filter_confirmed,
setCoinsRet, nValueRet)); vCoins, setCoinsRet, nValueRet));
// we should get 20 in one coin // we should get 20 in one coin
BOOST_CHECK_EQUAL(nValueRet, 20 * CENT); BOOST_CHECK_EQUAL(nValueRet, 20 * CENT);
BOOST_CHECK_EQUAL(setCoinsRet.size(), 1U); BOOST_CHECK_EQUAL(setCoinsRet.size(), 1U);
// now we have 5+6+7+8+20+30 = 75 cents total // now we have 5+6+7+8+20+30 = 75 cents total
add_coin(wallet, 5 * CENT); add_coin(wallet, 5 * CENT);
// now if we try making 16 cents again, the smaller coins can make 5+6+7 // now if we try making 16 cents again, the smaller coins can make 5+6+7
// = 18 cents, better than the next biggest coin, 20 // = 18 cents, better than the next biggest coin, 20
BOOST_CHECK(wallet.SelectCoinsMinConf(16 * CENT, 1, 1, 0, vCoins, BOOST_CHECK(wallet.SelectCoinsMinConf(16 * CENT, filter_confirmed,
setCoinsRet, nValueRet)); vCoins, setCoinsRet, nValueRet));
// we should get 18 in 3 coins // we should get 18 in 3 coins
BOOST_CHECK_EQUAL(nValueRet, 18 * CENT); BOOST_CHECK_EQUAL(nValueRet, 18 * CENT);
BOOST_CHECK_EQUAL(setCoinsRet.size(), 3U); BOOST_CHECK_EQUAL(setCoinsRet.size(), 3U);
// now we have 5+6+7+8+18+20+30 // now we have 5+6+7+8+18+20+30
add_coin(wallet, 18 * CENT); add_coin(wallet, 18 * CENT);
// and now if we try making 16 cents again, the smaller coins can make // and now if we try making 16 cents again, the smaller coins can make
// 5+6+7 = 18 cents, the same as the next biggest coin, 18 // 5+6+7 = 18 cents, the same as the next biggest coin, 18
BOOST_CHECK(wallet.SelectCoinsMinConf(16 * CENT, 1, 1, 0, vCoins, BOOST_CHECK(wallet.SelectCoinsMinConf(16 * CENT, filter_confirmed,
setCoinsRet, nValueRet)); vCoins, setCoinsRet, nValueRet));
// we should get 18 in 1 coin // we should get 18 in 1 coin
BOOST_CHECK_EQUAL(nValueRet, 18 * CENT); BOOST_CHECK_EQUAL(nValueRet, 18 * CENT);
// because in the event of a tie, the biggest coin wins // because in the event of a tie, the biggest coin wins
BOOST_CHECK_EQUAL(setCoinsRet.size(), 1U); BOOST_CHECK_EQUAL(setCoinsRet.size(), 1U);
// now try making 11 cents. we should get 5+6 // now try making 11 cents. we should get 5+6
BOOST_CHECK(wallet.SelectCoinsMinConf(11 * CENT, 1, 1, 0, vCoins, BOOST_CHECK(wallet.SelectCoinsMinConf(11 * CENT, filter_confirmed,
setCoinsRet, nValueRet)); vCoins, setCoinsRet, nValueRet));
BOOST_CHECK_EQUAL(nValueRet, 11 * CENT); BOOST_CHECK_EQUAL(nValueRet, 11 * CENT);
BOOST_CHECK_EQUAL(setCoinsRet.size(), 2U); BOOST_CHECK_EQUAL(setCoinsRet.size(), 2U);
// check that the smallest bigger coin is used // check that the smallest bigger coin is used
add_coin(wallet, 1 * COIN); add_coin(wallet, 1 * COIN);
add_coin(wallet, 2 * COIN); add_coin(wallet, 2 * COIN);
add_coin(wallet, 3 * COIN); add_coin(wallet, 3 * COIN);
// now we have 5+6+7+8+18+20+30+100+200+300+400 = 1094 cents // now we have 5+6+7+8+18+20+30+100+200+300+400 = 1094 cents
add_coin(wallet, 4 * COIN); add_coin(wallet, 4 * COIN);
BOOST_CHECK(wallet.SelectCoinsMinConf(95 * CENT, 1, 1, 0, vCoins, BOOST_CHECK(wallet.SelectCoinsMinConf(95 * CENT, filter_confirmed,
setCoinsRet, nValueRet)); vCoins, setCoinsRet, nValueRet));
// we should get 1 BCH in 1 coin // we should get 1 BCH in 1 coin
BOOST_CHECK_EQUAL(nValueRet, 1 * COIN); BOOST_CHECK_EQUAL(nValueRet, 1 * COIN);
BOOST_CHECK_EQUAL(setCoinsRet.size(), 1U); BOOST_CHECK_EQUAL(setCoinsRet.size(), 1U);
BOOST_CHECK(wallet.SelectCoinsMinConf(195 * CENT, 1, 1, 0, vCoins, BOOST_CHECK(wallet.SelectCoinsMinConf(195 * CENT, filter_confirmed,
setCoinsRet, nValueRet)); vCoins, setCoinsRet, nValueRet));
// we should get 2 BCH in 1 coin // we should get 2 BCH in 1 coin
BOOST_CHECK_EQUAL(nValueRet, 2 * COIN); BOOST_CHECK_EQUAL(nValueRet, 2 * COIN);
BOOST_CHECK_EQUAL(setCoinsRet.size(), 1U); BOOST_CHECK_EQUAL(setCoinsRet.size(), 1U);
// empty the wallet and start again, now with fractions of a cent, to // empty the wallet and start again, now with fractions of a cent, to
// test small change avoidance // test small change avoidance
empty_wallet(); empty_wallet();
add_coin(wallet, 1 * MIN_CHANGE / 10); add_coin(wallet, 1 * MIN_CHANGE / 10);
add_coin(wallet, 2 * MIN_CHANGE / 10); add_coin(wallet, 2 * MIN_CHANGE / 10);
add_coin(wallet, 3 * MIN_CHANGE / 10); add_coin(wallet, 3 * MIN_CHANGE / 10);
add_coin(wallet, 4 * MIN_CHANGE / 10); add_coin(wallet, 4 * MIN_CHANGE / 10);
add_coin(wallet, 5 * MIN_CHANGE / 10); add_coin(wallet, 5 * MIN_CHANGE / 10);
// try making 1 * MIN_CHANGE from the 1.5 * MIN_CHANGE we'll get change // try making 1 * MIN_CHANGE from the 1.5 * MIN_CHANGE we'll get change
// smaller than MIN_CHANGE whatever happens, so can expect MIN_CHANGE // smaller than MIN_CHANGE whatever happens, so can expect MIN_CHANGE
// exactly // exactly
BOOST_CHECK(wallet.SelectCoinsMinConf(MIN_CHANGE, 1, 1, 0, vCoins, BOOST_CHECK(wallet.SelectCoinsMinConf(MIN_CHANGE, filter_confirmed,
setCoinsRet, nValueRet)); vCoins, setCoinsRet, nValueRet));
BOOST_CHECK_EQUAL(nValueRet, MIN_CHANGE); BOOST_CHECK_EQUAL(nValueRet, MIN_CHANGE);
// but if we add a bigger coin, small change is avoided // but if we add a bigger coin, small change is avoided
add_coin(wallet, 1111 * MIN_CHANGE); add_coin(wallet, 1111 * MIN_CHANGE);
// try making 1 from 0.1 + 0.2 + 0.3 + 0.4 + 0.5 + 1111 = 1112.5 // try making 1 from 0.1 + 0.2 + 0.3 + 0.4 + 0.5 + 1111 = 1112.5
BOOST_CHECK(wallet.SelectCoinsMinConf(1 * MIN_CHANGE, 1, 1, 0, vCoins, BOOST_CHECK(wallet.SelectCoinsMinConf(1 * MIN_CHANGE, filter_confirmed,
setCoinsRet, nValueRet)); vCoins, setCoinsRet, nValueRet));
// we should get the exact amount // we should get the exact amount
BOOST_CHECK_EQUAL(nValueRet, 1 * MIN_CHANGE); BOOST_CHECK_EQUAL(nValueRet, 1 * MIN_CHANGE);
// if we add more small coins: // if we add more small coins:
add_coin(wallet, 6 * MIN_CHANGE / 10); add_coin(wallet, 6 * MIN_CHANGE / 10);
add_coin(wallet, 7 * MIN_CHANGE / 10); add_coin(wallet, 7 * MIN_CHANGE / 10);
// and try again to make 1.0 * MIN_CHANGE // and try again to make 1.0 * MIN_CHANGE
BOOST_CHECK(wallet.SelectCoinsMinConf(1 * MIN_CHANGE, 1, 1, 0, vCoins, BOOST_CHECK(wallet.SelectCoinsMinConf(1 * MIN_CHANGE, filter_confirmed,
setCoinsRet, nValueRet)); vCoins, setCoinsRet, nValueRet));
// we should get the exact amount // we should get the exact amount
BOOST_CHECK_EQUAL(nValueRet, 1 * MIN_CHANGE); BOOST_CHECK_EQUAL(nValueRet, 1 * MIN_CHANGE);
// run the 'mtgox' test (see // run the 'mtgox' test (see
// http://blockexplorer.com/tx/29a3efd3ef04f9153d47a990bd7b048a4b2d213daaa5fb8ed670fb85f13bdbcf) // http://blockexplorer.com/tx/29a3efd3ef04f9153d47a990bd7b048a4b2d213daaa5fb8ed670fb85f13bdbcf)
// they tried to consolidate 10 50k coins into one 500k coin, and ended // they tried to consolidate 10 50k coins into one 500k coin, and ended
// up with 50k in change // up with 50k in change
empty_wallet(); empty_wallet();
for (int j = 0; j < 20; j++) { for (int j = 0; j < 20; j++) {
add_coin(wallet, 50000 * COIN); add_coin(wallet, 50000 * COIN);
} }
BOOST_CHECK(wallet.SelectCoinsMinConf(500000 * COIN, 1, 1, 0, vCoins, BOOST_CHECK(wallet.SelectCoinsMinConf(500000 * COIN, filter_confirmed,
setCoinsRet, nValueRet)); vCoins, setCoinsRet, nValueRet));
// we should get the exact amount // we should get the exact amount
BOOST_CHECK_EQUAL(nValueRet, 500000 * COIN); BOOST_CHECK_EQUAL(nValueRet, 500000 * COIN);
// in ten coins // in ten coins
BOOST_CHECK_EQUAL(setCoinsRet.size(), 10U); BOOST_CHECK_EQUAL(setCoinsRet.size(), 10U);
// if there's not enough in the smaller coins to make at least 1 * // if there's not enough in the smaller coins to make at least 1 *
// MIN_CHANGE change (0.5+0.6+0.7 < 1.0+1.0), we need to try finding an // MIN_CHANGE change (0.5+0.6+0.7 < 1.0+1.0), we need to try finding an
// exact subset anyway // exact subset anyway
// sometimes it will fail, and so we use the next biggest coin: // sometimes it will fail, and so we use the next biggest coin:
empty_wallet(); empty_wallet();
add_coin(wallet, 5 * MIN_CHANGE / 10); add_coin(wallet, 5 * MIN_CHANGE / 10);
add_coin(wallet, 6 * MIN_CHANGE / 10); add_coin(wallet, 6 * MIN_CHANGE / 10);
add_coin(wallet, 7 * MIN_CHANGE / 10); add_coin(wallet, 7 * MIN_CHANGE / 10);
add_coin(wallet, 1111 * MIN_CHANGE); add_coin(wallet, 1111 * MIN_CHANGE);
BOOST_CHECK(wallet.SelectCoinsMinConf(1 * MIN_CHANGE, 1, 1, 0, vCoins, BOOST_CHECK(wallet.SelectCoinsMinConf(1 * MIN_CHANGE, filter_confirmed,
setCoinsRet, nValueRet)); vCoins, setCoinsRet, nValueRet));
// we get the bigger coin // we get the bigger coin
BOOST_CHECK_EQUAL(nValueRet, 1111 * MIN_CHANGE); BOOST_CHECK_EQUAL(nValueRet, 1111 * MIN_CHANGE);
BOOST_CHECK_EQUAL(setCoinsRet.size(), 1U); BOOST_CHECK_EQUAL(setCoinsRet.size(), 1U);
// but sometimes it's possible, and we use an exact subset (0.4 + 0.6 = // but sometimes it's possible, and we use an exact subset (0.4 + 0.6 =
// 1.0) // 1.0)
empty_wallet(); empty_wallet();
add_coin(wallet, 4 * MIN_CHANGE / 10); add_coin(wallet, 4 * MIN_CHANGE / 10);
add_coin(wallet, 6 * MIN_CHANGE / 10); add_coin(wallet, 6 * MIN_CHANGE / 10);
add_coin(wallet, 8 * MIN_CHANGE / 10); add_coin(wallet, 8 * MIN_CHANGE / 10);
add_coin(wallet, 1111 * MIN_CHANGE); add_coin(wallet, 1111 * MIN_CHANGE);
BOOST_CHECK(wallet.SelectCoinsMinConf(MIN_CHANGE, 1, 1, 0, vCoins, BOOST_CHECK(wallet.SelectCoinsMinConf(MIN_CHANGE, filter_confirmed,
setCoinsRet, nValueRet)); vCoins, setCoinsRet, nValueRet));
// we should get the exact amount // we should get the exact amount
BOOST_CHECK_EQUAL(nValueRet, MIN_CHANGE); BOOST_CHECK_EQUAL(nValueRet, MIN_CHANGE);
// in two coins 0.4+0.6 // in two coins 0.4+0.6
BOOST_CHECK_EQUAL(setCoinsRet.size(), 2U); BOOST_CHECK_EQUAL(setCoinsRet.size(), 2U);
// test avoiding small change // test avoiding small change
empty_wallet(); empty_wallet();
add_coin(wallet, 5 * MIN_CHANGE / 100); add_coin(wallet, 5 * MIN_CHANGE / 100);
add_coin(wallet, 1 * MIN_CHANGE); add_coin(wallet, 1 * MIN_CHANGE);
add_coin(wallet, 100 * MIN_CHANGE); add_coin(wallet, 100 * MIN_CHANGE);
// trying to make 100.01 from these three coins // trying to make 100.01 from these three coins
BOOST_CHECK(wallet.SelectCoinsMinConf(10001 * MIN_CHANGE / 100, 1, 1, 0, BOOST_CHECK(wallet.SelectCoinsMinConf(10001 * MIN_CHANGE / 100,
vCoins, setCoinsRet, nValueRet)); filter_confirmed, vCoins,
setCoinsRet, nValueRet));
// we should get all coins // we should get all coins
BOOST_CHECK_EQUAL(nValueRet, 10105 * MIN_CHANGE / 100); BOOST_CHECK_EQUAL(nValueRet, 10105 * MIN_CHANGE / 100);
BOOST_CHECK_EQUAL(setCoinsRet.size(), 3U); BOOST_CHECK_EQUAL(setCoinsRet.size(), 3U);
// but if we try to make 99.9, we should take the bigger of the two // but if we try to make 99.9, we should take the bigger of the two
// small coins to avoid small change // small coins to avoid small change
BOOST_CHECK(wallet.SelectCoinsMinConf(9990 * MIN_CHANGE / 100, 1, 1, 0, BOOST_CHECK(wallet.SelectCoinsMinConf(9990 * MIN_CHANGE / 100,
vCoins, setCoinsRet, nValueRet)); filter_confirmed, vCoins,
setCoinsRet, nValueRet));
BOOST_CHECK_EQUAL(nValueRet, 101 * MIN_CHANGE); BOOST_CHECK_EQUAL(nValueRet, 101 * MIN_CHANGE);
BOOST_CHECK_EQUAL(setCoinsRet.size(), 2U); BOOST_CHECK_EQUAL(setCoinsRet.size(), 2U);
// test with many inputs // test with many inputs
for (Amount amt = 1500 * SATOSHI; amt < COIN; amt = 10 * amt) { for (Amount amt = 1500 * SATOSHI; amt < COIN; amt = 10 * amt) {
empty_wallet(); empty_wallet();
// Create 676 inputs (= (old MAX_STANDARD_TX_SIZE == 100000) / 148 // Create 676 inputs (= (old MAX_STANDARD_TX_SIZE == 100000) / 148
// bytes per input) // bytes per input)
for (uint16_t j = 0; j < 676; j++) { for (uint16_t j = 0; j < 676; j++) {
add_coin(wallet, amt); add_coin(wallet, amt);
} }
BOOST_CHECK(wallet.SelectCoinsMinConf( BOOST_CHECK(wallet.SelectCoinsMinConf(2000 * SATOSHI,
2000 * SATOSHI, 1, 1, 0, vCoins, setCoinsRet, nValueRet)); filter_confirmed, vCoins,
setCoinsRet, nValueRet));
if (amt - 2000 * SATOSHI < MIN_CHANGE) { if (amt - 2000 * SATOSHI < MIN_CHANGE) {
// needs more than one input: // needs more than one input:
uint16_t returnSize = std::ceil( uint16_t returnSize = std::ceil(
double(2000 + (MIN_CHANGE / SATOSHI)) / (amt / SATOSHI)); double(2000 + (MIN_CHANGE / SATOSHI)) / (amt / SATOSHI));
Amount returnValue = returnSize * amt; Amount returnValue = returnSize * amt;
BOOST_CHECK_EQUAL(nValueRet, returnValue); BOOST_CHECK_EQUAL(nValueRet, returnValue);
BOOST_CHECK_EQUAL(setCoinsRet.size(), returnSize); BOOST_CHECK_EQUAL(setCoinsRet.size(), returnSize);
} else { } else {
// one input is sufficient: // one input is sufficient:
BOOST_CHECK_EQUAL(nValueRet, amt); BOOST_CHECK_EQUAL(nValueRet, amt);
BOOST_CHECK_EQUAL(setCoinsRet.size(), 1U); BOOST_CHECK_EQUAL(setCoinsRet.size(), 1U);
} }
} }
// test randomness // test randomness
{ {
empty_wallet(); empty_wallet();
for (int i2 = 0; i2 < 100; i2++) { for (int i2 = 0; i2 < 100; i2++) {
add_coin(wallet, COIN); add_coin(wallet, COIN);
} }
// picking 50 from 100 coins doesn't depend on the shuffle, but does // picking 50 from 100 coins doesn't depend on the shuffle, but does
// depend on randomness in the stochastic approximation code // depend on randomness in the stochastic approximation code
BOOST_CHECK(wallet.SelectCoinsMinConf(50 * COIN, 1, 6, 0, vCoins, BOOST_CHECK(wallet.SelectCoinsMinConf(
setCoinsRet, nValueRet)); 50 * COIN, filter_standard, vCoins, setCoinsRet, nValueRet));
BOOST_CHECK(wallet.SelectCoinsMinConf(50 * COIN, 1, 6, 0, vCoins, BOOST_CHECK(wallet.SelectCoinsMinConf(
setCoinsRet2, nValueRet)); 50 * COIN, filter_standard, vCoins, setCoinsRet2, nValueRet));
BOOST_CHECK(!equal_sets(setCoinsRet, setCoinsRet2)); BOOST_CHECK(!equal_sets(setCoinsRet, setCoinsRet2));
int fails = 0; int fails = 0;
for (int j = 0; j < RANDOM_REPEATS; j++) { for (int j = 0; j < RANDOM_REPEATS; j++) {
// selecting 1 from 100 identical coins depends on the shuffle; // selecting 1 from 100 identical coins depends on the shuffle;
// this test will fail 1% of the time run the test // this test will fail 1% of the time run the test
// RANDOM_REPEATS times and only complain if all of them fail // RANDOM_REPEATS times and only complain if all of them fail
BOOST_CHECK(wallet.SelectCoinsMinConf(COIN, 1, 6, 0, vCoins, BOOST_CHECK(wallet.SelectCoinsMinConf(
setCoinsRet, nValueRet)); COIN, filter_standard, vCoins, setCoinsRet, nValueRet));
BOOST_CHECK(wallet.SelectCoinsMinConf(COIN, 1, 6, 0, vCoins, BOOST_CHECK(wallet.SelectCoinsMinConf(
setCoinsRet2, nValueRet)); COIN, filter_standard, vCoins, setCoinsRet2, nValueRet));
if (equal_sets(setCoinsRet, setCoinsRet2)) { if (equal_sets(setCoinsRet, setCoinsRet2)) {
fails++; fails++;
} }
} }
BOOST_CHECK_NE(fails, RANDOM_REPEATS); BOOST_CHECK_NE(fails, RANDOM_REPEATS);
// add 75 cents in small change. not enough to make 90 cents, then // add 75 cents in small change. not enough to make 90 cents, then
// try making 90 cents. there are multiple competing "smallest // try making 90 cents. there are multiple competing "smallest
// bigger" coins, one of which should be picked at random // bigger" coins, one of which should be picked at random
add_coin(wallet, 5 * CENT); add_coin(wallet, 5 * CENT);
add_coin(wallet, 10 * CENT); add_coin(wallet, 10 * CENT);
add_coin(wallet, 15 * CENT); add_coin(wallet, 15 * CENT);
add_coin(wallet, 20 * CENT); add_coin(wallet, 20 * CENT);
add_coin(wallet, 25 * CENT); add_coin(wallet, 25 * CENT);
fails = 0; fails = 0;
for (int j = 0; j < RANDOM_REPEATS; j++) { for (int j = 0; j < RANDOM_REPEATS; j++) {
// selecting 1 from 100 identical coins depends on the shuffle; // selecting 1 from 100 identical coins depends on the shuffle;
// this test will fail 1% of the time run the test // this test will fail 1% of the time run the test
// RANDOM_REPEATS times and only complain if all of them fail // RANDOM_REPEATS times and only complain if all of them fail
BOOST_CHECK(wallet.SelectCoinsMinConf( BOOST_CHECK(wallet.SelectCoinsMinConf(90 * CENT,
90 * CENT, 1, 6, 0, vCoins, setCoinsRet, nValueRet)); filter_standard, vCoins,
BOOST_CHECK(wallet.SelectCoinsMinConf( setCoinsRet, nValueRet));
90 * CENT, 1, 6, 0, vCoins, setCoinsRet2, nValueRet)); BOOST_CHECK(wallet.SelectCoinsMinConf(90 * CENT,
filter_standard, vCoins,
setCoinsRet2, nValueRet));
if (equal_sets(setCoinsRet, setCoinsRet2)) { if (equal_sets(setCoinsRet, setCoinsRet2)) {
fails++; fails++;
} }
} }
BOOST_CHECK_NE(fails, RANDOM_REPEATS); BOOST_CHECK_NE(fails, RANDOM_REPEATS);
} }
} }
empty_wallet(); empty_wallet();
Show All 9 LinesBOOST_AUTO_TEST_CASE(ApproximateBestSubset) {
empty_wallet(); empty_wallet();
// Test vValue sort order // Test vValue sort order
for (int i = 0; i < 1000; i++) { for (int i = 0; i < 1000; i++) {
add_coin(wallet, 1000 * COIN); add_coin(wallet, 1000 * COIN);
} }
add_coin(wallet, 3 * COIN); add_coin(wallet, 3 * COIN);
BOOST_CHECK(wallet.SelectCoinsMinConf(1003 * COIN, 1, 6, 0, vCoins, BOOST_CHECK(wallet.SelectCoinsMinConf(1003 * COIN, filter_standard, vCoins,
setCoinsRet, nValueRet)); setCoinsRet, nValueRet));
BOOST_CHECK_EQUAL(nValueRet, 1003 * COIN); BOOST_CHECK_EQUAL(nValueRet, 1003 * COIN);
BOOST_CHECK_EQUAL(setCoinsRet.size(), 2U); BOOST_CHECK_EQUAL(setCoinsRet.size(), 2U);
empty_wallet(); empty_wallet();
} }
static void AddKey(CWallet &wallet, const CKey &key) { static void AddKey(CWallet &wallet, const CKey &key) {
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