diff --git a/src/test/amount_tests.cpp b/src/test/amount_tests.cpp
--- a/src/test/amount_tests.cpp
+++ b/src/test/amount_tests.cpp
@@ -103,9 +103,11 @@
 }
 
 BOOST_AUTO_TEST_CASE(MoneyRangeTest) {
-    BOOST_CHECK_EQUAL(MoneyRange(Amount(-1 * SATOSHI)), false);
-    BOOST_CHECK_EQUAL(MoneyRange(MAX_MONEY + Amount(1 * SATOSHI)), false);
-    BOOST_CHECK_EQUAL(MoneyRange(Amount(1 * SATOSHI)), true);
+    BOOST_CHECK_EQUAL(MoneyRange(-SATOSHI), false);
+    BOOST_CHECK_EQUAL(MoneyRange(Amount::zero()), true);
+    BOOST_CHECK_EQUAL(MoneyRange(SATOSHI), true);
+    BOOST_CHECK_EQUAL(MoneyRange(MAX_MONEY), true);
+    BOOST_CHECK_EQUAL(MoneyRange(MAX_MONEY + SATOSHI), false);
 }
 
 BOOST_AUTO_TEST_CASE(BinaryOperatorTest) {
diff --git a/src/test/feerate_tests.cpp b/src/test/feerate_tests.cpp
--- a/src/test/feerate_tests.cpp
+++ b/src/test/feerate_tests.cpp
@@ -71,6 +71,9 @@
     BOOST_CHECK_EQUAL(feeRate.GetFee(100), altFeeRate.GetFee(100));
 
     // Check full constructor
+    BOOST_CHECK(CFeeRate(-SATOSHI, 0) == CFeeRate(Amount::zero()));
+    BOOST_CHECK(CFeeRate(Amount::zero(), 0) == CFeeRate(Amount::zero()));
+    BOOST_CHECK(CFeeRate(SATOSHI, 0) == CFeeRate(Amount::zero()));
     // default value
     BOOST_CHECK(CFeeRate(-SATOSHI, 1000) == CFeeRate(-SATOSHI));
     BOOST_CHECK(CFeeRate(Amount::zero(), 1000) == CFeeRate(Amount::zero()));