diff options
Diffstat (limited to 'src/test/rpc_tests.cpp')
| -rw-r--r-- | src/test/rpc_tests.cpp | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/src/test/rpc_tests.cpp b/src/test/rpc_tests.cpp index df9dfbea1..457ef5836 100644 --- a/src/test/rpc_tests.cpp +++ b/src/test/rpc_tests.cpp @@ -176,6 +176,21 @@ BOOST_AUTO_TEST_CASE(rpc_format_monetary_values) BOOST_CHECK_EQUAL(ValueFromAmount(COIN/100000000).write(), "0.00000001"); } +// Dogecoin: Test the uint256 amount formatting +BOOST_AUTO_TEST_CASE(rpc_format_monetary_values_uint256) +{ + // Verify the simple zero case + const arith_uint256 zero = UintToArith256(uint256S("0x0000000000000000000000000000000000000000000000000000000000000000")); + BOOST_CHECK_EQUAL(ValueFromAmount(zero).write(), "0.00000000"); + // Verify a number greater than 2^64 to prove that works. This is (2 ^ 72) - 1 Koinu (as in, 1*10^-8) + const arith_uint256 largeQuantity = UintToArith256(uint256S("0x0000000000000000000000000000000000000000000000ffffffffffffffffff")); + BOOST_CHECK_EQUAL(ValueFromAmount(largeQuantity).write(), "47223664828696.45213695"); + + // Verify that if we calculate a negative number and store it in a uint type, we get a positive back. + const arith_uint256 negativeQuantity = zero - largeQuantity; + BOOST_CHECK_EQUAL(ValueFromAmount(negativeQuantity).write(), "6366458373880712194.84426241"); +} + static UniValue ValueFromString(const std::string &str) { UniValue value; |