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onchaind: use lowball fee instead of donating to miners.

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As of bitcoind 0.16.1, you can't send a single-input OP_RETURN output,
as you get 'tx-too-small'.

	sendrawtx exit 26, gave error code: -26?error message:?tx-size-small (code 64)?'

So instead we use the minimum fee we can, but otherwise ignore it and
don't wait for it to be mined.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
This commit is contained in:
Rusty Russell
2018-06-20 16:20:44 +09:30
committed by Christian Decker
parent 0e6c0dbba2
commit c78afa9201
4 changed files with 46 additions and 20 deletions
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22
tests/test_lightningd.py
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@@ -2206,26 +2206,22 @@ class LightningDTests(BaseLightningDTests):
l2.daemon.wait_for_log(' to ONCHAIN')
# Wait for timeout.
l1.daemon.wait_for_log('Propose handling THEIR_UNILATERAL/OUR_HTLC by DONATING_TO_MINERS .* after 6 blocks')
bitcoind.generate_block(6)
l1.daemon.wait_for_log('Propose handling THEIR_UNILATERAL/OUR_HTLC by IGNORING_TINY_PAYMENT .* after 6 blocks')
bitcoind.generate_block(5)
l1.daemon.wait_for_log('sendrawtx exit 0')
bitcoind.generate_block(1)
l1.daemon.wait_for_log('Resolved THEIR_UNILATERAL/OUR_HTLC by our proposal DONATING_TO_MINERS')
l1.daemon.wait_for_logs(['Broadcasting IGNORING_TINY_PAYMENT .* to resolve THEIR_UNILATERAL/OUR_HTLC',
'sendrawtx exit 0',
'Ignoring output 0 of .*: THEIR_UNILATERAL/OUR_HTLC'])
# 100 deep and l2 forgets.
bitcoind.generate_block(91)
sync_blockheight([l2])
bitcoind.generate_block(93)
sync_blockheight([l1, l2])
assert not l2.daemon.is_in_log('onchaind complete, forgetting peer')
assert not l1.daemon.is_in_log('onchaind complete, forgetting peer')
bitcoind.generate_block(1)
l2.daemon.wait_for_log('onchaind complete, forgetting peer')
# l1 forgets 100 blocks after DONATING_TO_MINERS.
bitcoind.generate_block(6)
sync_blockheight([l1])
assert not l1.daemon.is_in_log('onchaind complete, forgetting peer')
bitcoind.generate_block(1)
# l1 does not wait for ignored payment.
l1.daemon.wait_for_log('onchaind complete, forgetting peer')
@unittest.skipIf(not DEVELOPER, "needs DEVELOPER=1 for dev_fail")