def test_verify_vote_signature_passes(b):
    vote = b.vote('block', 'a', True)
    assert Voting.verify_vote_signature(vote)
    vote['signature'] = ''
    assert (not Voting.verify_vote_signature(vote))
def test_verify_vote_signature_passes(b):
    vote = b.vote('block', 'a', True)
    assert Voting.verify_vote_signature(vote)
    vote['signature'] = 
    assert (not Voting.verify_vote_signature(vote))