diff options
Diffstat (limited to 'qa/rpc-tests/p2p-fullblocktest.py')
| -rwxr-xr-x | qa/rpc-tests/p2p-fullblocktest.py | 98 |
1 files changed, 53 insertions, 45 deletions
diff --git a/qa/rpc-tests/p2p-fullblocktest.py b/qa/rpc-tests/p2p-fullblocktest.py index 19b90d4db1..17fd40ef1d 100755 --- a/qa/rpc-tests/p2p-fullblocktest.py +++ b/qa/rpc-tests/p2p-fullblocktest.py @@ -65,6 +65,10 @@ class FullBlockTest(ComparisonTestFramework): self.tip = None self.blocks = {} + def add_options(self, parser): + super().add_options(parser) + parser.add_option("--runbarelyexpensive", dest="runbarelyexpensive", default=True) + def run_test(self): self.test = TestManager(self, self.options.tmpdir) self.test.add_all_connections(self.nodes) @@ -875,10 +879,13 @@ class FullBlockTest(ComparisonTestFramework): yield rejected(RejectResult(16, b'bad-txns-nonfinal')) - # This checks that a block with a bloated VARINT between the block_header and the array of tx is rejected - # (previous behavior was that it was accepted.) It also checks that if you subsequently send that block - # with correct encoding, it should be accepted (i.e., the receiving node should not reject it on the - # basis that it's the same as an already-rejected block, which would be a DoS vulnerability.) + # This checks that a block with a bloated VARINT between the block_header and the array of tx such that + # the block is > MAX_BLOCK_SIZE with the bloated varint, but <= MAX_BLOCK_SIZE without the bloated varint, + # does not cause a subsequent, identical block with canonical encoding to be rejected. The test does not + # care whether the bloated block is accepted or rejected; it only cares that the second block is accepted. + # + # What matters is that the receiving node should not reject the bloated block, and then reject the canonical + # block on the basis that it's the same as an already-rejected block (which would be a consensus failure.) # # -> b39 (11) -> b42 (12) -> b43 (13) -> b53 (14) -> b55 (15) -> b57 (16) -> b60 (17) -> b64 (18) # \ @@ -903,7 +910,7 @@ class FullBlockTest(ComparisonTestFramework): tx.vin.append(CTxIn(COutPoint(b64a.vtx[1].sha256, 0))) b64a = update_block("64a", [tx]) assert_equal(len(b64a.serialize()), MAX_BLOCK_SIZE + 8) - yield rejected() + yield TestInstance([[self.tip, None]]) # comptool workaround: to make sure b64 is delivered, manually erase b64a from blockstore self.test.block_store.erase(b64a.sha256) @@ -941,7 +948,6 @@ class FullBlockTest(ComparisonTestFramework): update_block(66, [tx2, tx1]) yield rejected(RejectResult(16, b'bad-txns-inputs-missingorspent')) - # Attempt to double-spend a transaction created in a block # # -> b43 (13) -> b53 (14) -> b55 (15) -> b57 (16) -> b60 (17) -> b64 (18) -> b65 (19) @@ -1239,46 +1245,48 @@ class FullBlockTest(ComparisonTestFramework): # Test re-org of a week's worth of blocks (1088 blocks) # This test takes a minute or two and can be accomplished in memory # - tip(88) - LARGE_REORG_SIZE = 1088 - test1 = TestInstance(sync_every_block=False) - spend=out[32] - for i in range(89, LARGE_REORG_SIZE + 89): - b = block(i, spend) - tx = CTransaction() - script_length = MAX_BLOCK_SIZE - len(b.serialize()) - 69 - script_output = CScript([b'\x00' * script_length]) - tx.vout.append(CTxOut(0, script_output)) - tx.vin.append(CTxIn(COutPoint(b.vtx[1].sha256, 0))) - b = update_block(i, [tx]) - assert_equal(len(b.serialize()), MAX_BLOCK_SIZE) - test1.blocks_and_transactions.append([self.tip, True]) - save_spendable_output() - spend = get_spendable_output() - - yield test1 - chain1_tip = i - - # now create alt chain of same length - tip(88) - test2 = TestInstance(sync_every_block=False) - for i in range(89, LARGE_REORG_SIZE + 89): - block("alt"+str(i)) - test2.blocks_and_transactions.append([self.tip, False]) - yield test2 - - # extend alt chain to trigger re-org - block("alt" + str(chain1_tip + 1)) - yield accepted() - - # ... and re-org back to the first chain - tip(chain1_tip) - block(chain1_tip + 1) - yield rejected() - block(chain1_tip + 2) - yield accepted() + if self.options.runbarelyexpensive: + tip(88) + LARGE_REORG_SIZE = 1088 + test1 = TestInstance(sync_every_block=False) + spend=out[32] + for i in range(89, LARGE_REORG_SIZE + 89): + b = block(i, spend) + tx = CTransaction() + script_length = MAX_BLOCK_SIZE - len(b.serialize()) - 69 + script_output = CScript([b'\x00' * script_length]) + tx.vout.append(CTxOut(0, script_output)) + tx.vin.append(CTxIn(COutPoint(b.vtx[1].sha256, 0))) + b = update_block(i, [tx]) + assert_equal(len(b.serialize()), MAX_BLOCK_SIZE) + test1.blocks_and_transactions.append([self.tip, True]) + save_spendable_output() + spend = get_spendable_output() + + yield test1 + chain1_tip = i + + # now create alt chain of same length + tip(88) + test2 = TestInstance(sync_every_block=False) + for i in range(89, LARGE_REORG_SIZE + 89): + block("alt"+str(i)) + test2.blocks_and_transactions.append([self.tip, False]) + yield test2 + + # extend alt chain to trigger re-org + block("alt" + str(chain1_tip + 1)) + yield accepted() + + # ... and re-org back to the first chain + tip(chain1_tip) + block(chain1_tip + 1) + yield rejected() + block(chain1_tip + 2) + yield accepted() + + chain1_tip += 2 - chain1_tip += 2 if __name__ == '__main__': |