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-rw-r--r--src/test/serialize_tests.cpp96
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)