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[tests] Fix flake8 warnings in invalidblockrequest

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This commit is contained in:
John Newbery 2017-11-22 11:57:06 -05:00
parent 54b8c580b7
commit 2b7064eda7
1 changed files with 22 additions and 29 deletions
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49
test/functional/p2p_invalid_block.py
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@ -10,20 +10,17 @@ In this test we connect to one node over p2p, and test block requests:
3) Invalid block with bad coinbase value should be rejected and not
re-requested.
"""
from test_framework.test_framework import ComparisonTestFramework
from test_framework.util import *
from test_framework.comptool import TestManager, TestInstance, RejectResult
from test_framework.blocktools import *
from test_framework.mininode import network_thread_start
import copy
import time
# Use the ComparisonTestFramework with 1 node: only use --testbinary.
class InvalidBlockRequestTest(ComparisonTestFramework):
from test_framework.blocktools import create_block, create_coinbase, create_transaction
from test_framework.comptool import RejectResult, TestInstance, TestManager
from test_framework.messages import COIN
from test_framework.mininode import network_thread_start
from test_framework.test_framework import ComparisonTestFramework
from test_framework.util import assert_equal
''' Can either run this test as 1 node with expected answers, or two and compare them.
Change the "outcome" variable from each TestInstance object to only do the comparison. '''
class InvalidBlockRequestTest(ComparisonTestFramework):
def set_test_params(self):
self.num_nodes = 1
self.setup_clean_chain = True
@ -39,11 +36,10 @@ class InvalidBlockRequestTest(ComparisonTestFramework):
def get_tests(self):
if self.tip is None:
self.tip = int("0x" + self.nodes[0].getbestblockhash(), 0)
self.block_time = int(time.time())+1
self.block_time = int(time.time()) + 1
self.log.info("Create a new block with an anyone-can-spend coinbase")
'''
Create a new block with an anyone-can-spend coinbase
'''
height = 1
block = create_block(self.tip, create_coinbase(height), self.block_time)
self.block_time += 1
@ -54,9 +50,8 @@ class InvalidBlockRequestTest(ComparisonTestFramework):
height += 1
yield TestInstance([[block, True]])
'''
Now we need that block to mature so we can spend the coinbase.
'''
self.log.info("Mature the block.")
test = TestInstance(sync_every_block=False)
for i in range(100):
block = create_block(self.tip, create_coinbase(height), self.block_time)
@ -67,13 +62,12 @@ class InvalidBlockRequestTest(ComparisonTestFramework):
height += 1
yield test
'''
Now we use merkle-root malleability to generate an invalid block with
same blockheader.
Manufacture a block with 3 transactions (coinbase, spend of prior
coinbase, spend of that spend). Duplicate the 3rd transaction to
leave merkle root and blockheader unchanged but invalidate the block.
'''
# Use merkle-root malleability to generate an invalid block with
# same blockheader.
# Manufacture a block with 3 transactions (coinbase, spend of prior
# coinbase, spend of that spend). Duplicate the 3rd transaction to
# leave merkle root and blockheader unchanged but invalidate the block.
self.log.info("Test merkle root malleability.")
block2 = create_block(self.tip, create_coinbase(height), self.block_time)
self.block_time += 1
@ -98,13 +92,12 @@ class InvalidBlockRequestTest(ComparisonTestFramework):
yield TestInstance([[block2, RejectResult(16, b'bad-txns-duplicate')], [block2_orig, True]])
height += 1
'''
Make sure that a totally screwed up block is not valid.
'''
self.log.info("Test very broken block.")
block3 = create_block(self.tip, create_coinbase(height), self.block_time)
self.block_time += 1
block3.vtx[0].vout[0].nValue = 100 * COIN # Too high!
block3.vtx[0].sha256=None
block3.vtx[0].sha256 = None
block3.vtx[0].calc_sha256()
block3.hashMerkleRoot = block3.calc_merkle_root()
block3.rehash()