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author | Pieter Wuille <pieter@wuille.net> | 2021-05-16 18:09:20 -0700 |
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committer | Pieter Wuille <pieter@wuille.net> | 2021-05-24 16:15:02 -0700 |
commit | afd964d70b6f7583ecf89c380f80db07f5b66a60 (patch) | |
tree | de45d53befecd13c48bfb22e8e7a9d2543941d07 /src/test/serialize_tests.cpp | |
parent | bda33f98e2f32f2411fb0a8f5fb4f0a32abdf7d4 (diff) |
Convert existing float encoding tests
Diffstat (limited to 'src/test/serialize_tests.cpp')
-rw-r--r-- | src/test/serialize_tests.cpp | 45 |
1 files changed, 0 insertions, 45 deletions
diff --git a/src/test/serialize_tests.cpp b/src/test/serialize_tests.cpp index 0fdf481823..0812ef643e 100644 --- a/src/test/serialize_tests.cpp +++ b/src/test/serialize_tests.cpp @@ -88,51 +88,6 @@ BOOST_AUTO_TEST_CASE(sizes) BOOST_CHECK_EQUAL(GetSerializeSize(bool(0), 0), 1U); } -BOOST_AUTO_TEST_CASE(doubles_conversion) -{ - // Choose values that map unambiguously 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('<d', x) for x in range(0,1000)))) == '43d0c82591953c4eafe114590d392676a01585d25b25d433557f0d7878b23f96' -*/ -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) == 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 |