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@ -330,24 +330,24 @@ BOOST_AUTO_TEST_CASE(knapsack_solver_test)
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empty_wallet();
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// with an empty wallet we can't even pay one cent
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BOOST_CHECK(!testWallet.AttemptSelection( 1 * CENT, filter_standard, vCoins, setCoinsRet, nValueRet, coin_selection_params));
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BOOST_CHECK(!KnapsackSolver(1 * CENT, KnapsackGroupOutputs(filter_standard), setCoinsRet, nValueRet));
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add_coin(1*CENT, 4); // add a new 1 cent coin
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// with a new 1 cent coin, we still can't find a mature 1 cent
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BOOST_CHECK(!testWallet.AttemptSelection( 1 * CENT, filter_standard, vCoins, setCoinsRet, nValueRet, coin_selection_params));
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BOOST_CHECK(!KnapsackSolver(1 * CENT, KnapsackGroupOutputs(filter_standard), setCoinsRet, nValueRet));
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// but we can find a new 1 cent
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BOOST_CHECK( testWallet.AttemptSelection( 1 * CENT, filter_confirmed, vCoins, setCoinsRet, nValueRet, coin_selection_params));
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BOOST_CHECK(KnapsackSolver(1 * CENT, KnapsackGroupOutputs(filter_confirmed), setCoinsRet, nValueRet));
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BOOST_CHECK_EQUAL(nValueRet, 1 * CENT);
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add_coin(2*CENT); // add a mature 2 cent coin
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// we can't make 3 cents of mature coins
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BOOST_CHECK(!testWallet.AttemptSelection( 3 * CENT, filter_standard, vCoins, setCoinsRet, nValueRet, coin_selection_params));
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BOOST_CHECK(!KnapsackSolver(3 * CENT, KnapsackGroupOutputs(filter_standard), setCoinsRet, nValueRet));
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// we can make 3 cents of new coins
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BOOST_CHECK( testWallet.AttemptSelection( 3 * CENT, filter_confirmed, vCoins, setCoinsRet, nValueRet, coin_selection_params));
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BOOST_CHECK(KnapsackSolver(3 * CENT, KnapsackGroupOutputs(filter_confirmed), setCoinsRet, nValueRet));
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BOOST_CHECK_EQUAL(nValueRet, 3 * CENT);
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add_coin(5*CENT); // add a mature 5 cent coin,
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@ -357,33 +357,33 @@ BOOST_AUTO_TEST_CASE(knapsack_solver_test)
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// now we have new: 1+10=11 (of which 10 was self-sent), and mature: 2+5+20=27. total = 38
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// we can't make 38 cents only if we disallow new coins:
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BOOST_CHECK(!testWallet.AttemptSelection(38 * CENT, filter_standard, vCoins, setCoinsRet, nValueRet, coin_selection_params));
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BOOST_CHECK(!KnapsackSolver(38 * CENT, KnapsackGroupOutputs(filter_standard), setCoinsRet, nValueRet));
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// we can't even make 37 cents if we don't allow new coins even if they're from us
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BOOST_CHECK(!testWallet.AttemptSelection(38 * CENT, filter_standard_extra, vCoins, setCoinsRet, nValueRet, coin_selection_params));
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BOOST_CHECK(!KnapsackSolver(38 * CENT, KnapsackGroupOutputs(filter_standard_extra), setCoinsRet, nValueRet));
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// but we can make 37 cents if we accept new coins from ourself
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BOOST_CHECK( testWallet.AttemptSelection(37 * CENT, filter_standard, vCoins, setCoinsRet, nValueRet, coin_selection_params));
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BOOST_CHECK(KnapsackSolver(37 * CENT, KnapsackGroupOutputs(filter_standard), setCoinsRet, nValueRet));
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BOOST_CHECK_EQUAL(nValueRet, 37 * CENT);
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// and we can make 38 cents if we accept all new coins
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BOOST_CHECK( testWallet.AttemptSelection(38 * CENT, filter_confirmed, vCoins, setCoinsRet, nValueRet, coin_selection_params));
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BOOST_CHECK(KnapsackSolver(38 * CENT, KnapsackGroupOutputs(filter_confirmed), setCoinsRet, nValueRet));
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BOOST_CHECK_EQUAL(nValueRet, 38 * CENT);
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// try making 34 cents from 1,2,5,10,20 - we can't do it exactly
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BOOST_CHECK( testWallet.AttemptSelection(34 * CENT, filter_confirmed, vCoins, setCoinsRet, nValueRet, coin_selection_params));
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BOOST_CHECK(KnapsackSolver(34 * CENT, KnapsackGroupOutputs(filter_confirmed), setCoinsRet, nValueRet));
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BOOST_CHECK_EQUAL(nValueRet, 35 * CENT); // but 35 cents is closest
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BOOST_CHECK_EQUAL(setCoinsRet.size(), 3U); // the best should be 20+10+5. it's incredibly unlikely the 1 or 2 got included (but possible)
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// when we try making 7 cents, the smaller coins (1,2,5) are enough. We should see just 2+5
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BOOST_CHECK( testWallet.AttemptSelection( 7 * CENT, filter_confirmed, vCoins, setCoinsRet, nValueRet, coin_selection_params));
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BOOST_CHECK(KnapsackSolver(7 * CENT, KnapsackGroupOutputs(filter_confirmed), setCoinsRet, nValueRet));
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BOOST_CHECK_EQUAL(nValueRet, 7 * CENT);
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BOOST_CHECK_EQUAL(setCoinsRet.size(), 2U);
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// when we try making 8 cents, the smaller coins (1,2,5) are exactly enough.
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BOOST_CHECK( testWallet.AttemptSelection( 8 * CENT, filter_confirmed, vCoins, setCoinsRet, nValueRet, coin_selection_params));
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BOOST_CHECK(KnapsackSolver(8 * CENT, KnapsackGroupOutputs(filter_confirmed), setCoinsRet, nValueRet));
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BOOST_CHECK(nValueRet == 8 * CENT);
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BOOST_CHECK_EQUAL(setCoinsRet.size(), 3U);
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// when we try making 9 cents, no subset of smaller coins is enough, and we get the next bigger coin (10)
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BOOST_CHECK( testWallet.AttemptSelection( 9 * CENT, filter_confirmed, vCoins, setCoinsRet, nValueRet, coin_selection_params));
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BOOST_CHECK(KnapsackSolver(9 * CENT, KnapsackGroupOutputs(filter_confirmed), setCoinsRet, nValueRet));
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BOOST_CHECK_EQUAL(nValueRet, 10 * CENT);
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BOOST_CHECK_EQUAL(setCoinsRet.size(), 1U);
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@ -397,30 +397,30 @@ BOOST_AUTO_TEST_CASE(knapsack_solver_test)
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add_coin(30*CENT); // now we have 6+7+8+20+30 = 71 cents total
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// check that we have 71 and not 72
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BOOST_CHECK( testWallet.AttemptSelection(71 * CENT, filter_confirmed, vCoins, setCoinsRet, nValueRet, coin_selection_params));
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BOOST_CHECK(!testWallet.AttemptSelection(72 * CENT, filter_confirmed, vCoins, setCoinsRet, nValueRet, coin_selection_params));
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BOOST_CHECK(KnapsackSolver(71 * CENT, KnapsackGroupOutputs(filter_confirmed), setCoinsRet, nValueRet));
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BOOST_CHECK(!KnapsackSolver(72 * CENT, KnapsackGroupOutputs(filter_confirmed), setCoinsRet, nValueRet));
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// 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
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BOOST_CHECK( testWallet.AttemptSelection(16 * CENT, filter_confirmed, vCoins, setCoinsRet, nValueRet, coin_selection_params));
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BOOST_CHECK(KnapsackSolver(16 * CENT, KnapsackGroupOutputs(filter_confirmed), setCoinsRet, nValueRet));
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BOOST_CHECK_EQUAL(nValueRet, 20 * CENT); // we should get 20 in one coin
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BOOST_CHECK_EQUAL(setCoinsRet.size(), 1U);
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add_coin( 5*CENT); // now we have 5+6+7+8+20+30 = 75 cents total
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// 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
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BOOST_CHECK( testWallet.AttemptSelection(16 * CENT, filter_confirmed, vCoins, setCoinsRet, nValueRet, coin_selection_params));
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BOOST_CHECK(KnapsackSolver(16 * CENT, KnapsackGroupOutputs(filter_confirmed), setCoinsRet, nValueRet));
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BOOST_CHECK_EQUAL(nValueRet, 18 * CENT); // we should get 18 in 3 coins
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BOOST_CHECK_EQUAL(setCoinsRet.size(), 3U);
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add_coin( 18*CENT); // now we have 5+6+7+8+18+20+30
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// 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
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BOOST_CHECK( testWallet.AttemptSelection(16 * CENT, filter_confirmed, vCoins, setCoinsRet, nValueRet, coin_selection_params));
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BOOST_CHECK(KnapsackSolver(16 * CENT, KnapsackGroupOutputs(filter_confirmed), setCoinsRet, nValueRet));
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BOOST_CHECK_EQUAL(nValueRet, 18 * CENT); // we should get 18 in 1 coin
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BOOST_CHECK_EQUAL(setCoinsRet.size(), 1U); // because in the event of a tie, the biggest coin wins
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// now try making 11 cents. we should get 5+6
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BOOST_CHECK( testWallet.AttemptSelection(11 * CENT, filter_confirmed, vCoins, setCoinsRet, nValueRet, coin_selection_params));
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BOOST_CHECK(KnapsackSolver(11 * CENT, KnapsackGroupOutputs(filter_confirmed), setCoinsRet, nValueRet));
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BOOST_CHECK_EQUAL(nValueRet, 11 * CENT);
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BOOST_CHECK_EQUAL(setCoinsRet.size(), 2U);
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@ -429,11 +429,11 @@ BOOST_AUTO_TEST_CASE(knapsack_solver_test)
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add_coin( 2*COIN);
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add_coin( 3*COIN);
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add_coin( 4*COIN); // now we have 5+6+7+8+18+20+30+100+200+300+400 = 1094 cents
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BOOST_CHECK( testWallet.AttemptSelection(95 * CENT, filter_confirmed, vCoins, setCoinsRet, nValueRet, coin_selection_params));
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BOOST_CHECK(KnapsackSolver(95 * CENT, KnapsackGroupOutputs(filter_confirmed), setCoinsRet, nValueRet));
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BOOST_CHECK_EQUAL(nValueRet, 1 * COIN); // we should get 1 BTC in 1 coin
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BOOST_CHECK_EQUAL(setCoinsRet.size(), 1U);
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BOOST_CHECK( testWallet.AttemptSelection(195 * CENT, filter_confirmed, vCoins, setCoinsRet, nValueRet, coin_selection_params));
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BOOST_CHECK(KnapsackSolver(195 * CENT, KnapsackGroupOutputs(filter_confirmed), setCoinsRet, nValueRet));
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BOOST_CHECK_EQUAL(nValueRet, 2 * COIN); // we should get 2 BTC in 1 coin
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BOOST_CHECK_EQUAL(setCoinsRet.size(), 1U);
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@ -448,14 +448,14 @@ BOOST_AUTO_TEST_CASE(knapsack_solver_test)
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// try making 1 * MIN_CHANGE from the 1.5 * MIN_CHANGE
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// we'll get change smaller than MIN_CHANGE whatever happens, so can expect MIN_CHANGE exactly
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BOOST_CHECK( testWallet.AttemptSelection(MIN_CHANGE, filter_confirmed, vCoins, setCoinsRet, nValueRet, coin_selection_params));
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BOOST_CHECK(KnapsackSolver(MIN_CHANGE, KnapsackGroupOutputs(filter_confirmed), setCoinsRet, nValueRet));
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BOOST_CHECK_EQUAL(nValueRet, MIN_CHANGE);
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// but if we add a bigger coin, small change is avoided
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add_coin(1111*MIN_CHANGE);
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// try making 1 from 0.1 + 0.2 + 0.3 + 0.4 + 0.5 + 1111 = 1112.5
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BOOST_CHECK( testWallet.AttemptSelection(1 * MIN_CHANGE, filter_confirmed, vCoins, setCoinsRet, nValueRet, coin_selection_params));
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BOOST_CHECK(KnapsackSolver(1 * MIN_CHANGE, KnapsackGroupOutputs(filter_confirmed), setCoinsRet, nValueRet));
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BOOST_CHECK_EQUAL(nValueRet, 1 * MIN_CHANGE); // we should get the exact amount
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// if we add more small coins:
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@ -463,7 +463,7 @@ BOOST_AUTO_TEST_CASE(knapsack_solver_test)
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add_coin(MIN_CHANGE * 7 / 10);
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// and try again to make 1.0 * MIN_CHANGE
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BOOST_CHECK( testWallet.AttemptSelection(1 * MIN_CHANGE, filter_confirmed, vCoins, setCoinsRet, nValueRet, coin_selection_params));
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BOOST_CHECK(KnapsackSolver(1 * MIN_CHANGE, KnapsackGroupOutputs(filter_confirmed), setCoinsRet, nValueRet));
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BOOST_CHECK_EQUAL(nValueRet, 1 * MIN_CHANGE); // we should get the exact amount
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// run the 'mtgox' test (see https://blockexplorer.com/tx/29a3efd3ef04f9153d47a990bd7b048a4b2d213daaa5fb8ed670fb85f13bdbcf)
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@ -472,7 +472,7 @@ BOOST_AUTO_TEST_CASE(knapsack_solver_test)
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for (int j = 0; j < 20; j++)
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add_coin(50000 * COIN);
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BOOST_CHECK( testWallet.AttemptSelection(500000 * COIN, filter_confirmed, vCoins, setCoinsRet, nValueRet, coin_selection_params));
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BOOST_CHECK(KnapsackSolver(500000 * COIN, KnapsackGroupOutputs(filter_confirmed), setCoinsRet, nValueRet));
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BOOST_CHECK_EQUAL(nValueRet, 500000 * COIN); // we should get the exact amount
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BOOST_CHECK_EQUAL(setCoinsRet.size(), 10U); // in ten coins
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@ -485,7 +485,7 @@ BOOST_AUTO_TEST_CASE(knapsack_solver_test)
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add_coin(MIN_CHANGE * 6 / 10);
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add_coin(MIN_CHANGE * 7 / 10);
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add_coin(1111 * MIN_CHANGE);
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BOOST_CHECK( testWallet.AttemptSelection(1 * MIN_CHANGE, filter_confirmed, vCoins, setCoinsRet, nValueRet, coin_selection_params));
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BOOST_CHECK(KnapsackSolver(1 * MIN_CHANGE, KnapsackGroupOutputs(filter_confirmed), setCoinsRet, nValueRet));
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BOOST_CHECK_EQUAL(nValueRet, 1111 * MIN_CHANGE); // we get the bigger coin
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BOOST_CHECK_EQUAL(setCoinsRet.size(), 1U);
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@ -495,7 +495,7 @@ BOOST_AUTO_TEST_CASE(knapsack_solver_test)
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add_coin(MIN_CHANGE * 6 / 10);
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add_coin(MIN_CHANGE * 8 / 10);
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add_coin(1111 * MIN_CHANGE);
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BOOST_CHECK( testWallet.AttemptSelection(MIN_CHANGE, filter_confirmed, vCoins, setCoinsRet, nValueRet, coin_selection_params));
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BOOST_CHECK(KnapsackSolver(MIN_CHANGE, KnapsackGroupOutputs(filter_confirmed), setCoinsRet, nValueRet));
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BOOST_CHECK_EQUAL(nValueRet, MIN_CHANGE); // we should get the exact amount
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BOOST_CHECK_EQUAL(setCoinsRet.size(), 2U); // in two coins 0.4+0.6
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@ -506,12 +506,12 @@ BOOST_AUTO_TEST_CASE(knapsack_solver_test)
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add_coin(MIN_CHANGE * 100);
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// trying to make 100.01 from these three coins
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BOOST_CHECK(testWallet.AttemptSelection(MIN_CHANGE * 10001 / 100, filter_confirmed, vCoins, setCoinsRet, nValueRet, coin_selection_params));
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BOOST_CHECK(KnapsackSolver(MIN_CHANGE * 10001 / 100, KnapsackGroupOutputs(filter_confirmed), setCoinsRet, nValueRet));
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BOOST_CHECK_EQUAL(nValueRet, MIN_CHANGE * 10105 / 100); // we should get all coins
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BOOST_CHECK_EQUAL(setCoinsRet.size(), 3U);
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// but if we try to make 99.9, we should take the bigger of the two small coins to avoid small change
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BOOST_CHECK(testWallet.AttemptSelection(MIN_CHANGE * 9990 / 100, filter_confirmed, vCoins, setCoinsRet, nValueRet, coin_selection_params));
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BOOST_CHECK(KnapsackSolver(MIN_CHANGE * 9990 / 100, KnapsackGroupOutputs(filter_confirmed), setCoinsRet, nValueRet));
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BOOST_CHECK_EQUAL(nValueRet, 101 * MIN_CHANGE);
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BOOST_CHECK_EQUAL(setCoinsRet.size(), 2U);
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}
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@ -525,7 +525,7 @@ BOOST_AUTO_TEST_CASE(knapsack_solver_test)
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// We only create the wallet once to save time, but we still run the coin selection RUN_TESTS times.
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for (int i = 0; i < RUN_TESTS; i++) {
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BOOST_CHECK(testWallet.AttemptSelection(2000, filter_confirmed, vCoins, setCoinsRet, nValueRet, coin_selection_params));
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BOOST_CHECK(KnapsackSolver(2000, KnapsackGroupOutputs(filter_confirmed), setCoinsRet, nValueRet));
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if (amt - 2000 < MIN_CHANGE) {
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// needs more than one input:
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@ -610,7 +610,7 @@ BOOST_AUTO_TEST_CASE(ApproximateBestSubset)
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add_coin(1000 * COIN);
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add_coin(3 * COIN);
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BOOST_CHECK(testWallet.AttemptSelection(1003 * COIN, filter_standard, vCoins, setCoinsRet, nValueRet, coin_selection_params));
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BOOST_CHECK(KnapsackSolver(1003 * COIN, KnapsackGroupOutputs(filter_standard), setCoinsRet, nValueRet));
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BOOST_CHECK_EQUAL(nValueRet, 1003 * COIN);
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BOOST_CHECK_EQUAL(setCoinsRet.size(), 2U);
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