Add Dogecoin current fee calculation logic (#1413)

Introduces 1 COIN/kb fees, rounded up to the next 1 COIN.

1 files changed, 37 insertions, 1 deletions

diff --git a/src/wallet/test/wallet_tests.cpp b/src/wallet/test/wallet_tests.cpp
index 2fbcc3414..c6e10f34f 100644
--- a/src/wallet/test/wallet_tests.cpp
+++ b/src/wallet/test/wallet_tests.cpp
@@ -2,6 +2,7 @@
 // Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
+#include "txmempool.h"
 #include "wallet/wallet.h"
 
 #include <set>
@@ -434,7 +435,7 @@ BOOST_FIXTURE_TEST_CASE(rescan, TestChain240Setup)
 // greater or equal than key birthday. Previously there was a bug where
 // importwallet RPC would start the scan at the latest block with timestamp less
 // than or equal to key birthday.
-BOOST_FIXTURE_TEST_CASE(importwallet_rescan, TestChain100Setup)
+BOOST_FIXTURE_TEST_CASE(importwallet_rescan, TestChain240Setup)
 {
     CWallet *pwalletMainBackup = ::pwalletMain;
     LOCK(cs_main);
@@ -490,4 +491,39 @@ BOOST_FIXTURE_TEST_CASE(importwallet_rescan, TestChain100Setup)
     ::pwalletMain = pwalletMainBackup;
 }
 
+BOOST_AUTO_TEST_CASE(GetMinimumFee_test)
+{
+    uint64_t value = 1000 * COIN; // 1,000 DOGE
+
+    CMutableTransaction tx;
+    CTxMemPool pool(payTxFee);
+    CTxOut txout1(value, (CScript)vector<unsigned char>(24, 0));
+    tx.vout.push_back(txout1);
+
+    int64_t nMinTxFee = COIN;
+
+    BOOST_CHECK_EQUAL(CWallet::GetMinimumFee(tx, 250, 0, pool), nMinTxFee);
+    BOOST_CHECK_EQUAL(CWallet::GetMinimumFee(tx, 1000, 0, pool), 2 * nMinTxFee);
+    BOOST_CHECK_EQUAL(CWallet::GetMinimumFee(tx, 1999, 0, pool), 2 * nMinTxFee);
+}
+
+BOOST_AUTO_TEST_CASE(GetMinimumFee_dust_test)
+{
+    // Derived from main net TX 3d6ec3ae2aca3ae0a6c65074fd8ee888cd7ed262f2cbaa25d33861989324a14e
+    CMutableTransaction tx;
+    CTxMemPool pool(payTxFee);
+    CTxOut txout1(139496846, (CScript)vector<unsigned char>(24, 0)); // Regular output
+    CTxOut txout2(15499649, (CScript)vector<unsigned char>(24, 0)); // Dust output
+    tx.vout.push_back(txout1);
+    tx.vout.push_back(txout2);
+
+    int64_t nMinTxFee = COIN;
+
+    // Confirm dust penalty fees are added on
+
+    BOOST_CHECK_EQUAL(CWallet::GetMinimumFee(tx, 963, 0, pool), 2 * nMinTxFee);
+    BOOST_CHECK_EQUAL(CWallet::GetMinimumFee(tx, 1000, 0, pool), 3 * nMinTxFee);
+    BOOST_CHECK_EQUAL(CWallet::GetMinimumFee(tx, 1999, 0, pool), 3 * nMinTxFee);
+}
+
 BOOST_AUTO_TEST_SUITE_END()