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