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37 lines
1.5 KiB
Python
37 lines
1.5 KiB
Python
import logging
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from lbry.testcase import CommandTestCase
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from lbry.wallet.server.prometheus import REORG_COUNT
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class BlockchainReorganizationTests(CommandTestCase):
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VERBOSITY = logging.WARN
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async def assertBlockHash(self, height):
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self.assertEqual(
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(await self.ledger.headers.hash(height)).decode(),
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await self.blockchain.get_block_hash(height)
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)
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async def test_reorg(self):
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REORG_COUNT.set(0)
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# invalidate current block, move forward 2
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self.assertEqual(self.ledger.headers.height, 206)
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await self.assertBlockHash(206)
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await self.blockchain.invalidate_block((await self.ledger.headers.hash(206)).decode())
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await self.blockchain.generate(2)
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await self.ledger.on_header.where(lambda e: e.height == 207)
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self.assertEqual(self.ledger.headers.height, 207)
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await self.assertBlockHash(206)
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await self.assertBlockHash(207)
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self.assertEqual(1, REORG_COUNT._samples()[0][2])
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# invalidate current block, move forward 3
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await self.blockchain.invalidate_block((await self.ledger.headers.hash(206)).decode())
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await self.blockchain.generate(3)
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await self.ledger.on_header.where(lambda e: e.height == 208)
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self.assertEqual(self.ledger.headers.height, 208)
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await self.assertBlockHash(206)
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await self.assertBlockHash(207)
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await self.assertBlockHash(208)
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self.assertEqual(2, REORG_COUNT._samples()[0][2])
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