139 lines
3.3 KiB
Python
139 lines
3.3 KiB
Python
# standard imports
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import logging
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import unittest
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import os
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import tempfile
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# external imports
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from chainlib.chain import ChainSpec
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# local imports
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from chainsyncer.backend.memory import MemBackend
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from chainsyncer.backend.sql import SQLBackend
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from chainsyncer.backend.file import (
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FileBackend,
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data_dir_for,
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)
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# test imports
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from tests.chainsyncer_base import TestBase
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from chainsyncer.unittest.base import (
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MockBlock,
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MockConn,
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TestSyncer,
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)
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logging.basicConfig(level=logging.DEBUG)
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logg = logging.getLogger()
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class NaughtyCountExceptionFilter:
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def __init__(self, name, croak_on):
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self.c = 0
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self.croak = croak_on
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self.name = name
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def filter(self, conn, block, tx, db_session=None):
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if self.c == self.croak:
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self.croak = -1
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raise RuntimeError('foo')
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self.c += 1
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def __str__(self):
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return '{} {}'.format(self.__class__.__name__, self.name)
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class CountFilter:
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def __init__(self, name):
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self.c = 0
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self.name = name
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def filter(self, conn, block, tx, db_session=None):
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self.c += 1
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def __str__(self):
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return '{} {}'.format(self.__class__.__name__, self.name)
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class TestInterrupt(TestBase):
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def setUp(self):
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super(TestInterrupt, self).setUp()
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self.backend = None
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self.conn = MockConn()
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self.vectors = [
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[4, 3, 2],
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[6, 4, 2],
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[6, 5, 2],
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[6, 4, 3],
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]
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def assert_filter_interrupt(self, vector, chain_interface):
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logg.debug('running vector {} {}'.format(str(self.backend), vector))
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z = 0
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for v in vector:
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z += v
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syncer = TestSyncer(self.backend, chain_interface, vector)
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filters = [
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CountFilter('foo'),
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CountFilter('bar'),
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NaughtyCountExceptionFilter('xyzzy', croak_on=3),
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CountFilter('baz'),
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]
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for fltr in filters:
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syncer.add_filter(fltr)
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try:
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syncer.loop(0.1, self.conn)
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except RuntimeError:
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logg.info('caught croak')
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pass
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(pair, fltr) = self.backend.get()
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self.assertGreater(fltr, 0)
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syncer.loop(0.1, self.conn)
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for fltr in filters:
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logg.debug('{} {}'.format(str(fltr), fltr.c))
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self.assertEqual(fltr.c, z)
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def test_filter_interrupt_memory(self):
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for vector in self.vectors:
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self.backend = MemBackend(self.chain_spec, None, target_block=len(vector))
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self.assert_filter_interrupt(vector, self.interface)
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def test_filter_interrupt_file(self):
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#for vector in self.vectors:
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vector = self.vectors.pop()
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d = tempfile.mkdtemp()
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#os.makedirs(data_dir_for(self.chain_spec, 'foo', d))
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self.backend = FileBackend.initial(self.chain_spec, len(vector), base_dir=d) #'foo', base_dir=d)
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self.assert_filter_interrupt(vector, self.interface)
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def test_filter_interrupt_sql(self):
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for vector in self.vectors:
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self.backend = SQLBackend.initial(self.chain_spec, len(vector))
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self.assert_filter_interrupt(vector, self.interface)
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if __name__ == '__main__':
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unittest.main()
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