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Merge pull request #1079 from VoR0220/fixedTypeTestFramework

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Solidity helper function for testing fixed points
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RJ 2016-10-13 15:18:45 -05:00 committed by GitHub
commit d9af51be51
1 changed files with 9 additions and 1 deletions
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10
test/libsolidity/SolidityExecutionFramework.h
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@ -39,6 +39,7 @@ namespace dev
{ {
namespace solidity namespace solidity
{ {
using rational = boost::rational<dev::bigint>;
/// An Ethereum address: 20 bytes. /// An Ethereum address: 20 bytes.
/// @NOTE This is not endian-specific; it's just a bunch of bytes. /// @NOTE This is not endian-specific; it's just a bunch of bytes.
using Address = h160; using Address = h160;
@ -155,6 +156,14 @@ public:
static bytes encode(char const* _value) { return encode(std::string(_value)); } static bytes encode(char const* _value) { return encode(std::string(_value)); }
static bytes encode(byte _value) { return bytes(31, 0) + bytes{_value}; } static bytes encode(byte _value) { return bytes(31, 0) + bytes{_value}; }
static bytes encode(u256 const& _value) { return toBigEndian(_value); } static bytes encode(u256 const& _value) { return toBigEndian(_value); }
/// @returns the fixed-point encoding of a rational number with a given
/// number of fractional bits.
static bytes encode(std::pair<rational, int> const& _valueAndPrecision)
{
rational const& value = _valueAndPrecision.first;
int fractionalBits = _valueAndPrecision.second;
return encode(u256((value.numerator() << fractionalBits) / value.denominator()));
}
static bytes encode(h256 const& _value) { return _value.asBytes(); } static bytes encode(h256 const& _value) { return _value.asBytes(); }
static bytes encode(bytes const& _value, bool _padLeft = true) static bytes encode(bytes const& _value, bool _padLeft = true)
{ {
@ -186,7 +195,6 @@ public:
{ {
return encodeArgs(u256(0x20), u256(_arg.size()), _arg); return encodeArgs(u256(0x20), u256(_arg.size()), _arg);
} }
class ContractInterface class ContractInterface
{ {
public: public: