From 46473757ee5baf4ee712aa11ad4a515e66e45d10 Mon Sep 17 00:00:00 2001 From: MarcoFalke Date: Sat, 18 Jun 2016 16:49:11 +0200 Subject: [PATCH] Merge #8215: [wallet] tests: Don't use floating point faa91b1 [wallet] tests: Don't use floating point (MarcoFalke) --- src/wallet/test/wallet_tests.cpp | 46 +++++++++++++++++--------------- 1 file changed, 25 insertions(+), 21 deletions(-) diff --git a/src/wallet/test/wallet_tests.cpp b/src/wallet/test/wallet_tests.cpp index 387b22358..0a4f06ba8 100644 --- a/src/wallet/test/wallet_tests.cpp +++ b/src/wallet/test/wallet_tests.cpp @@ -27,7 +27,7 @@ typedef set > CoinSet; BOOST_FIXTURE_TEST_SUITE(wallet_tests, WalletTestingSetup) -static CWallet wallet; +static const CWallet wallet; static vector vCoins; static void add_coin(const CAmount& nValue, int nAge = 6*24, bool fIsFromMe = false, int nInput=0) @@ -188,11 +188,11 @@ BOOST_AUTO_TEST_CASE(coin_selection_tests) // empty the wallet and start again, now with fractions of a cent, to test small change avoidance empty_wallet(); - add_coin(0.1*MIN_CHANGE); - add_coin(0.2*MIN_CHANGE); - add_coin(0.3*MIN_CHANGE); - add_coin(0.4*MIN_CHANGE); - add_coin(0.5*MIN_CHANGE); + add_coin(MIN_CHANGE * 1 / 10); + add_coin(MIN_CHANGE * 2 / 10); + add_coin(MIN_CHANGE * 3 / 10); + add_coin(MIN_CHANGE * 4 / 10); + add_coin(MIN_CHANGE * 5 / 10); // 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 exactly @@ -207,8 +207,8 @@ BOOST_AUTO_TEST_CASE(coin_selection_tests) BOOST_CHECK_EQUAL(nValueRet, 1 * MIN_CHANGE); // we should get the exact amount // if we add more small coins: - add_coin(0.6*MIN_CHANGE); - add_coin(0.7*MIN_CHANGE); + add_coin(MIN_CHANGE * 6 / 10); + add_coin(MIN_CHANGE * 7 / 10); // and try again to make 1.0 * MIN_CHANGE BOOST_CHECK( wallet.SelectCoinsMinConf(1 * MIN_CHANGE, 1, 1, vCoins, setCoinsRet, nValueRet)); @@ -229,9 +229,9 @@ BOOST_AUTO_TEST_CASE(coin_selection_tests) // sometimes it will fail, and so we use the next biggest coin: empty_wallet(); - add_coin(0.5 * MIN_CHANGE); - add_coin(0.6 * MIN_CHANGE); - add_coin(0.7 * MIN_CHANGE); + add_coin(MIN_CHANGE * 5 / 10); + add_coin(MIN_CHANGE * 6 / 10); + add_coin(MIN_CHANGE * 7 / 10); add_coin(1111 * MIN_CHANGE); BOOST_CHECK( wallet.SelectCoinsMinConf(1 * MIN_CHANGE, 1, 1, vCoins, setCoinsRet, nValueRet)); BOOST_CHECK_EQUAL(nValueRet, 1111 * MIN_CHANGE); // we get the bigger coin @@ -239,9 +239,9 @@ BOOST_AUTO_TEST_CASE(coin_selection_tests) // but sometimes it's possible, and we use an exact subset (0.4 + 0.6 = 1.0) empty_wallet(); - add_coin(0.4 * MIN_CHANGE); - add_coin(0.6 * MIN_CHANGE); - add_coin(0.8 * MIN_CHANGE); + add_coin(MIN_CHANGE * 4 / 10); + add_coin(MIN_CHANGE * 6 / 10); + add_coin(MIN_CHANGE * 8 / 10); add_coin(1111 * MIN_CHANGE); BOOST_CHECK( wallet.SelectCoinsMinConf(MIN_CHANGE, 1, 1, vCoins, setCoinsRet, nValueRet)); BOOST_CHECK_EQUAL(nValueRet, MIN_CHANGE); // we should get the exact amount @@ -249,17 +249,17 @@ BOOST_AUTO_TEST_CASE(coin_selection_tests) // test avoiding small change empty_wallet(); - add_coin(0.05 * MIN_CHANGE); - add_coin(1 * MIN_CHANGE); - add_coin(100 * MIN_CHANGE); + add_coin(MIN_CHANGE * 5 / 100); + add_coin(MIN_CHANGE * 1); + add_coin(MIN_CHANGE * 100); // trying to make 100.01 from these three coins - BOOST_CHECK( wallet.SelectCoinsMinConf(100.01 * MIN_CHANGE, 1, 1, vCoins, setCoinsRet, nValueRet)); - BOOST_CHECK_EQUAL(nValueRet, 101.05 * MIN_CHANGE); // we should get all coins + BOOST_CHECK(wallet.SelectCoinsMinConf(MIN_CHANGE * 10001 / 100, 1, 1, vCoins, setCoinsRet, nValueRet)); + BOOST_CHECK_EQUAL(nValueRet, MIN_CHANGE * 10105 / 100); // we should get all coins BOOST_CHECK_EQUAL(setCoinsRet.size(), 3U); // but if we try to make 99.9, we should take the bigger of the two small coins to avoid small change - BOOST_CHECK( wallet.SelectCoinsMinConf(99.9 * MIN_CHANGE, 1, 1, vCoins, setCoinsRet, nValueRet)); + BOOST_CHECK(wallet.SelectCoinsMinConf(MIN_CHANGE * 9990 / 100, 1, 1, vCoins, setCoinsRet, nValueRet)); BOOST_CHECK_EQUAL(nValueRet, 101 * MIN_CHANGE); BOOST_CHECK_EQUAL(setCoinsRet.size(), 2U); @@ -310,7 +310,11 @@ BOOST_AUTO_TEST_CASE(coin_selection_tests) // add 75 cents in small change. not enough to make 90 cents, // then try making 90 cents. there are multiple competing "smallest bigger" coins, // one of which should be picked at random - add_coin( 5*CENT); add_coin(10*CENT); add_coin(15*CENT); add_coin(20*CENT); add_coin(25*CENT); + add_coin(5 * CENT); + add_coin(10 * CENT); + add_coin(15 * CENT); + add_coin(20 * CENT); + add_coin(25 * CENT); fails = 0; for (int i = 0; i < RANDOM_REPEATS; i++)