status-im/nim-ethash
2
0
Fork 0
mirror of https://github.com/status-im/nim-ethash.git synced 2025-02-19 15:34:21 +00:00
Code Issues Projects Releases Wiki Activity

Add yet another failing test (calc_dataset_item)

Browse Source
This commit is contained in:
mratsim 2018-02-21 18:40:09 +01:00
parent 5620f337cc
commit 182e9b68af
2 changed files with 23 additions and 12 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
src/ethash.nim
View File

@ -114,7 +114,7 @@ proc fnv*[T: SomeUnsignedInt or Natural](v1, v2: T): uint32 {.inline, noSideEffe
# ###############################################################################
# Full dataset calculation
proc calc_dataset_item(cache: seq[Hash[512]], i: Natural): Hash[512] {.noSideEffect, noInit.} =
proc calc_dataset_item*(cache: seq[Hash[512]], i: Natural): Hash[512] {.noSideEffect, noInit.} =
# TODO review WORD_BYTES
# TODO use uint32 instead of uint64
# and mix[0] should be uint32

33
tests/all_tests.nim
View File

@ -142,21 +142,32 @@ suite "Seed hash":
expected = keccak_256(expected.toByteArrayBE)
suite "Dagger hashimoto computation":
# We can't replicate Python's dynamic typing here
# As Nim expects stack allocated Hash and a string is allocated on the heap
let
cache_size = 1024'u
full_size = 1024'u * 32
cache_str = "~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~"
header_str = "~~~~~X~~~~~~~~~~~~~~~~~~~~~~~~~~"
var cache_hash: Hash[256]
copyMem(addr cache_hash, unsafeAddr cache_str[0], 256 div 8)
let cache = mkcache(cache_size, cache_hash)
var header: Hash[256]
copyMem(addr header, unsafeAddr header_str[0], 256 div 8)
test "calc_data_set_item of item 0":
# # https://github.com/ethereum/ethash/blob/f5f0a8b1962544d2b6f40df8e4b0d9a32faf8f8e/test/c/test.cpp#L350-L374
let expected = toUpperASCII "b1698f829f90b35455804e5185d78f549fcb1bdce2bee006d4d7e68eb154b596be1427769eb1c3c3e93180c760af75f81d1023da6a0ffbe321c153a7c0103597"
check: $calc_dataset_item(cache, 0) == expected
test "Light and full Hashimoto agree":
# https://github.com/ethereum/ethash/blob/f5f0a8b1962544d2b6f40df8e4b0d9a32faf8f8e/test/python/test_pyethash.py#L44-L58
# We can't replicate Python's dynamic typing here
# As Nim expects stack allocated Hash and a string is allocated on the heap
let cache_str = "~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~"
var cache_hash: Hash[256]
copyMem(addr cache_hash, unsafeAddr cache_str[0], 256 div 8)
let cache = mkcache(1024, cache_hash)
let full_size = 1024 * 32
let header_str = "~~~~~X~~~~~~~~~~~~~~~~~~~~~~~~~~"
var header: Hash[256]
copyMem(addr header, unsafeAddr header_str[0], 256 div 8)
let
light_result = hashimoto_light(full_size, cache, header, 0)