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-rw-r--r--src/test/policy_fee_tests.cpp34
1 files changed, 34 insertions, 0 deletions
diff --git a/src/test/policy_fee_tests.cpp b/src/test/policy_fee_tests.cpp
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+++ b/src/test/policy_fee_tests.cpp
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+// Copyright (c) 2020 The Bitcoin Core developers
+// Distributed under the MIT software license, see the accompanying
+// file COPYING or http://www.opensource.org/licenses/mit-license.php.
+
+#include <amount.h>
+#include <policy/fees.h>
+
+#include <test/util/setup_common.h>
+
+#include <boost/test/unit_test.hpp>
+
+BOOST_FIXTURE_TEST_SUITE(policy_fee_tests, BasicTestingSetup)
+
+BOOST_AUTO_TEST_CASE(FeeRounder)
+{
+ FeeFilterRounder fee_rounder{CFeeRate{1000}};
+
+ // check that 1000 rounds to 974 or 1071
+ std::set<CAmount> results;
+ while (results.size() < 2) {
+ results.emplace(fee_rounder.round(1000));
+ }
+ BOOST_CHECK_EQUAL(*results.begin(), 974);
+ BOOST_CHECK_EQUAL(*++results.begin(), 1071);
+
+ // check that negative amounts rounds to 0
+ BOOST_CHECK_EQUAL(fee_rounder.round(-0), 0);
+ BOOST_CHECK_EQUAL(fee_rounder.round(-1), 0);
+
+ // check that MAX_MONEY rounds to 9170997
+ BOOST_CHECK_EQUAL(fee_rounder.round(MAX_MONEY), 9170997);
+}
+
+BOOST_AUTO_TEST_SUITE_END()