PyBitmessage-2021-04-27/src/tests/test_openclpow.py

37 lines
1.0 KiB
Python

"""
Tests for openclpow module
"""
import hashlib
import unittest
from struct import pack, unpack
from .common import skip_python3
skip_python3() # noqa:E402
from pybitmessage import openclpow
class TestOpenClPow(unittest.TestCase):
"""
Main opencl test case
"""
@classmethod
def setUpClass(cls):
openclpow.initCL()
@unittest.skipUnless(openclpow.enabledGpus, "No GPUs found / enabled")
def test_openclpow(self):
"""Check the working of openclpow module"""
target_ = 54227212183
initialHash = (
"3758f55b5a8d902fd3597e4ce6a2d3f23daff735f65d9698c270987f4e67ad590"
"b93f3ffeba0ef2fd08a8dc2f87b68ae5a0dc819ab57f22ad2c4c9c8618a43b3"
).decode("hex")
nonce = openclpow.do_opencl_pow(initialHash.encode("hex"), target_)
trialValue, = unpack(
'>Q', hashlib.sha512(hashlib.sha512(
pack('>Q', nonce) + initialHash).digest()).digest()[0:8])
self.assertLess((nonce - trialValue), target_)