diff options
Diffstat (limited to 'src/test')
| -rw-r--r-- | src/test/pow_tests.cpp | 66 | ||||
| -rw-r--r-- | src/test/serialize_tests.cpp | 114 |
2 files changed, 180 insertions, 0 deletions
diff --git a/src/test/pow_tests.cpp b/src/test/pow_tests.cpp new file mode 100644 index 0000000000..e42c1b0a8b --- /dev/null +++ b/src/test/pow_tests.cpp @@ -0,0 +1,66 @@ +// Copyright (c) 2015 The Bitcoin Core developers +// Distributed under the MIT/X11 software license, see the accompanying +// file COPYING or http://www.opensource.org/licenses/mit-license.php. + +#include "main.h" +#include "pow.h" +#include "util.h" + +#include <boost/test/unit_test.hpp> + +using namespace std; + +BOOST_AUTO_TEST_SUITE(pow_tests) + +/* Test calculation of next difficulty target with no constraints applying */ +BOOST_AUTO_TEST_CASE(get_next_work) +{ + SelectParams(CBaseChainParams::MAIN); + + int64_t nLastRetargetTime = 1261130161; // Block #30240 + CBlockIndex pindexLast; + pindexLast.nHeight = 32255; + pindexLast.nTime = 1262152739; // Block #32255 + pindexLast.nBits = 0x1d00ffff; + BOOST_CHECK_EQUAL(CalculateNextWorkRequired(&pindexLast, nLastRetargetTime), 0x1d00d86a); +} + +/* Test the constraint on the upper bound for next work */ +BOOST_AUTO_TEST_CASE(get_next_work_pow_limit) +{ + SelectParams(CBaseChainParams::MAIN); + + int64_t nLastRetargetTime = 1231006505; // Block #0 + CBlockIndex pindexLast; + pindexLast.nHeight = 2015; + pindexLast.nTime = 1233061996; // Block #2015 + pindexLast.nBits = 0x1d00ffff; + BOOST_CHECK_EQUAL(CalculateNextWorkRequired(&pindexLast, nLastRetargetTime), 0x1d00ffff); +} + +/* Test the constraint on the lower bound for actual time taken */ +BOOST_AUTO_TEST_CASE(get_next_work_lower_limit_actual) +{ + SelectParams(CBaseChainParams::MAIN); + + int64_t nLastRetargetTime = 1279008237; // Block #66528 + CBlockIndex pindexLast; + pindexLast.nHeight = 68543; + pindexLast.nTime = 1279297671; // Block #68543 + pindexLast.nBits = 0x1c05a3f4; + BOOST_CHECK_EQUAL(CalculateNextWorkRequired(&pindexLast, nLastRetargetTime), 0x1c0168fd); +} + +/* Test the constraint on the upper bound for actual time taken */ +BOOST_AUTO_TEST_CASE(get_next_work_upper_limit_actual) +{ + SelectParams(CBaseChainParams::MAIN); + int64_t nLastRetargetTime = 1263163443; // NOTE: Not an actual block time + CBlockIndex pindexLast; + pindexLast.nHeight = 46367; + pindexLast.nTime = 1269211443; // Block #46367 + pindexLast.nBits = 0x1c387f6f; + BOOST_CHECK_EQUAL(CalculateNextWorkRequired(&pindexLast, nLastRetargetTime), 0x1d00e1fd); +} + +BOOST_AUTO_TEST_SUITE_END() diff --git a/src/test/serialize_tests.cpp b/src/test/serialize_tests.cpp index fe49af711b..de9510d54a 100644 --- a/src/test/serialize_tests.cpp +++ b/src/test/serialize_tests.cpp @@ -4,6 +4,7 @@ #include "serialize.h" #include "streams.h" +#include "hash.h" #include <stdint.h> @@ -13,6 +14,119 @@ using namespace std; BOOST_AUTO_TEST_SUITE(serialize_tests) +BOOST_AUTO_TEST_CASE(sizes) +{ + BOOST_CHECK_EQUAL(sizeof(char), GetSerializeSize(char(0), 0)); + BOOST_CHECK_EQUAL(sizeof(int8_t), GetSerializeSize(int8_t(0), 0)); + BOOST_CHECK_EQUAL(sizeof(uint8_t), GetSerializeSize(uint8_t(0), 0)); + BOOST_CHECK_EQUAL(sizeof(int16_t), GetSerializeSize(int16_t(0), 0)); + BOOST_CHECK_EQUAL(sizeof(uint16_t), GetSerializeSize(uint16_t(0), 0)); + BOOST_CHECK_EQUAL(sizeof(int32_t), GetSerializeSize(int32_t(0), 0)); + BOOST_CHECK_EQUAL(sizeof(uint32_t), GetSerializeSize(uint32_t(0), 0)); + BOOST_CHECK_EQUAL(sizeof(int64_t), GetSerializeSize(int64_t(0), 0)); + BOOST_CHECK_EQUAL(sizeof(uint64_t), GetSerializeSize(uint64_t(0), 0)); + BOOST_CHECK_EQUAL(sizeof(float), GetSerializeSize(float(0), 0)); + BOOST_CHECK_EQUAL(sizeof(double), GetSerializeSize(double(0), 0)); + // Bool is serialized as char + BOOST_CHECK_EQUAL(sizeof(char), GetSerializeSize(bool(0), 0)); + + // Sanity-check GetSerializeSize and c++ type matching + BOOST_CHECK_EQUAL(GetSerializeSize(char(0), 0), 1); + BOOST_CHECK_EQUAL(GetSerializeSize(int8_t(0), 0), 1); + BOOST_CHECK_EQUAL(GetSerializeSize(uint8_t(0), 0), 1); + BOOST_CHECK_EQUAL(GetSerializeSize(int16_t(0), 0), 2); + BOOST_CHECK_EQUAL(GetSerializeSize(uint16_t(0), 0), 2); + BOOST_CHECK_EQUAL(GetSerializeSize(int32_t(0), 0), 4); + BOOST_CHECK_EQUAL(GetSerializeSize(uint32_t(0), 0), 4); + BOOST_CHECK_EQUAL(GetSerializeSize(int64_t(0), 0), 8); + BOOST_CHECK_EQUAL(GetSerializeSize(uint64_t(0), 0), 8); + BOOST_CHECK_EQUAL(GetSerializeSize(float(0), 0), 4); + BOOST_CHECK_EQUAL(GetSerializeSize(double(0), 0), 8); + BOOST_CHECK_EQUAL(GetSerializeSize(bool(0), 0), 1); +} + +BOOST_AUTO_TEST_CASE(floats_conversion) +{ + // Choose values that map unambigiously to binary floating point to avoid + // rounding issues at the compiler side. + BOOST_CHECK_EQUAL(ser_uint32_to_float(0x00000000), 0.0F); + BOOST_CHECK_EQUAL(ser_uint32_to_float(0x3f000000), 0.5F); + BOOST_CHECK_EQUAL(ser_uint32_to_float(0x3f800000), 1.0F); + BOOST_CHECK_EQUAL(ser_uint32_to_float(0x40000000), 2.0F); + BOOST_CHECK_EQUAL(ser_uint32_to_float(0x40800000), 4.0F); + BOOST_CHECK_EQUAL(ser_uint32_to_float(0x44444444), 785.066650390625F); + + BOOST_CHECK_EQUAL(ser_float_to_uint32(0.0F), 0x00000000); + BOOST_CHECK_EQUAL(ser_float_to_uint32(0.5F), 0x3f000000); + BOOST_CHECK_EQUAL(ser_float_to_uint32(1.0F), 0x3f800000); + BOOST_CHECK_EQUAL(ser_float_to_uint32(2.0F), 0x40000000); + BOOST_CHECK_EQUAL(ser_float_to_uint32(4.0F), 0x40800000); + BOOST_CHECK_EQUAL(ser_float_to_uint32(785.066650390625F), 0x44444444); +} + +BOOST_AUTO_TEST_CASE(doubles_conversion) +{ + // Choose values that map unambigiously to binary floating point to avoid + // rounding issues at the compiler side. + BOOST_CHECK_EQUAL(ser_uint64_to_double(0x0000000000000000ULL), 0.0); + BOOST_CHECK_EQUAL(ser_uint64_to_double(0x3fe0000000000000ULL), 0.5); + BOOST_CHECK_EQUAL(ser_uint64_to_double(0x3ff0000000000000ULL), 1.0); + BOOST_CHECK_EQUAL(ser_uint64_to_double(0x4000000000000000ULL), 2.0); + BOOST_CHECK_EQUAL(ser_uint64_to_double(0x4010000000000000ULL), 4.0); + BOOST_CHECK_EQUAL(ser_uint64_to_double(0x4088888880000000ULL), 785.066650390625); + + BOOST_CHECK_EQUAL(ser_double_to_uint64(0.0), 0x0000000000000000ULL); + BOOST_CHECK_EQUAL(ser_double_to_uint64(0.5), 0x3fe0000000000000ULL); + BOOST_CHECK_EQUAL(ser_double_to_uint64(1.0), 0x3ff0000000000000ULL); + BOOST_CHECK_EQUAL(ser_double_to_uint64(2.0), 0x4000000000000000ULL); + BOOST_CHECK_EQUAL(ser_double_to_uint64(4.0), 0x4010000000000000ULL); + BOOST_CHECK_EQUAL(ser_double_to_uint64(785.066650390625), 0x4088888880000000ULL); +} +/* +Python code to generate the below hashes: + + def reversed_hex(x): + return binascii.hexlify(''.join(reversed(x))) + def dsha256(x): + return hashlib.sha256(hashlib.sha256(x).digest()).digest() + + reversed_hex(dsha256(''.join(struct.pack('<f', x) for x in range(0,1000)))) == '8e8b4cf3e4df8b332057e3e23af42ebc663b61e0495d5e7e32d85099d7f3fe0c' + reversed_hex(dsha256(''.join(struct.pack('<d', x) for x in range(0,1000)))) == '43d0c82591953c4eafe114590d392676a01585d25b25d433557f0d7878b23f96' +*/ +BOOST_AUTO_TEST_CASE(floats) +{ + CDataStream ss(SER_DISK, 0); + // encode + for (int i = 0; i < 1000; i++) { + ss << float(i); + } + BOOST_CHECK(Hash(ss.begin(), ss.end()) == uint256S("8e8b4cf3e4df8b332057e3e23af42ebc663b61e0495d5e7e32d85099d7f3fe0c")); + + // decode + for (int i = 0; i < 1000; i++) { + float j; + ss >> j; + BOOST_CHECK_MESSAGE(i == j, "decoded:" << j << " expected:" << i); + } +} + +BOOST_AUTO_TEST_CASE(doubles) +{ + CDataStream ss(SER_DISK, 0); + // encode + for (int i = 0; i < 1000; i++) { + ss << double(i); + } + BOOST_CHECK(Hash(ss.begin(), ss.end()) == uint256S("43d0c82591953c4eafe114590d392676a01585d25b25d433557f0d7878b23f96")); + + // decode + for (int i = 0; i < 1000; i++) { + double j; + ss >> j; + BOOST_CHECK_MESSAGE(i == j, "decoded:" << j << " expected:" << i); + } +} + BOOST_AUTO_TEST_CASE(varints) { // encode |