diff options
| -rw-r--r-- | src/test/serialize_tests.cpp | 96 |
1 files changed, 93 insertions, 3 deletions
diff --git a/src/test/serialize_tests.cpp b/src/test/serialize_tests.cpp index e2d19ce5cc..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> @@ -26,15 +27,104 @@ BOOST_AUTO_TEST_CASE(sizes) 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) { - // TODO ser_uint32_to_float, ser_uint64_to_double - // TODO ser_float_to_uint32, ser_double_to_uint64 + 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) |