def testIsValidBlockJumpDifficulty(lastBlock, block):
jumpDifficulty = 10
block.dificulty = jumpDifficulty
block.hash = f'{"0" * jumpDifficulty}111abc'
with pytest.raises(Exception, match='difficulty must only adjust by 1'):
Block.isValidBlock(lastBlock, block)
def testIsValidBadProofOfWork(lastBlock, block):
block.hash = 'fff'
with pytest.raises(Exception,
match='proof of work requirement was not met'):
Block.isValidBlock(lastBlock, block)
def testIsValidBlock(lastBlock, block):
Block.isValidBlock(lastBlock, block)
def testIsValidBlockBadLastHash(lastBlock, block):
block.lasthash = 'evil_LastHash'
with pytest.raises(Exception, match='lastHash must be correct'):
Block.isValidBlock(lastBlock, block)
def testIsValidBlockBadHash(lastBlock, block):
block.hash = '0000000000000000bbbabc'
with pytest.raises(Exception, match='block hash must be correct'):
Block.isValidBlock(lastBlock, block)