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-rw-r--r--src/test/transaction_tests.cpp19
1 files changed, 17 insertions, 2 deletions
diff --git a/src/test/transaction_tests.cpp b/src/test/transaction_tests.cpp
index f9423bc0de..fb0df1aff4 100644
--- a/src/test/transaction_tests.cpp
+++ b/src/test/transaction_tests.cpp
@@ -342,11 +342,26 @@ BOOST_AUTO_TEST_CASE(test_IsStandard)
string reason;
BOOST_CHECK(IsStandardTx(t, reason));
- t.vout[0].nValue = 501; // dust
+ // Check dust with default relay fee:
+ CAmount nDustThreshold = 182 * minRelayTxFee.GetFeePerK()/1000 * 3;
+ BOOST_CHECK_EQUAL(nDustThreshold, 546);
+ // dust:
+ t.vout[0].nValue = nDustThreshold - 1;
BOOST_CHECK(!IsStandardTx(t, reason));
+ // not dust:
+ t.vout[0].nValue = nDustThreshold;
+ BOOST_CHECK(IsStandardTx(t, reason));
- t.vout[0].nValue = 2730; // not dust
+ // Check dust with odd relay fee to verify rounding:
+ // nDustThreshold = 182 * 1234 / 1000 * 3
+ minRelayTxFee = CFeeRate(1234);
+ // dust:
+ t.vout[0].nValue = 672 - 1;
+ BOOST_CHECK(!IsStandardTx(t, reason));
+ // not dust:
+ t.vout[0].nValue = 672;
BOOST_CHECK(IsStandardTx(t, reason));
+ minRelayTxFee = CFeeRate(DEFAULT_MIN_RELAY_TX_FEE);
t.vout[0].scriptPubKey = CScript() << OP_1;
BOOST_CHECK(!IsStandardTx(t, reason));