mirror of https://github.com/apache/cassandra
117 lines
4.9 KiB
Python
117 lines
4.9 KiB
Python
# Licensed to the Apache Software Foundation (ASF) under one
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# or more contributor license agreements. See the NOTICE file
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# distributed with this work for additional information
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# regarding copyright ownership. The ASF licenses this file
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# to you under the Apache License, Version 2.0 (the
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# "License"); you may not use this file except in compliance
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# with the License. You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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# to configure behavior, define $CQL_TEST_HOST to the destination address
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# and $CQL_TEST_PORT to the associated port.
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import unittest
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from cassandra.metadata import MIN_LONG, Murmur3Token
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from cassandra.policies import SimpleConvictionPolicy
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from cassandra.pool import Host
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from unittest.mock import Mock
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from cqlshlib.copyutil import ExportTask
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class CopyTaskTest(unittest.TestCase):
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def setUp(self):
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# set up default test data
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self.ks = 'testks'
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self.table = 'testtable'
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self.columns = ['a', 'b']
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self.fname = 'test_fname'
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self.opts = {}
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self.protocol_version = 0
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self.config_file = 'test_config'
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self.hosts = [
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Host('10.0.0.1', SimpleConvictionPolicy, 9000),
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Host('10.0.0.2', SimpleConvictionPolicy, 9000),
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Host('10.0.0.3', SimpleConvictionPolicy, 9000),
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Host('10.0.0.4', SimpleConvictionPolicy, 9000)
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]
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def mock_shell(self):
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"""
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Set up a mock Shell so we can unit test ExportTask internals
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"""
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shell = Mock()
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shell.conn = Mock()
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shell.conn.get_control_connection_host.return_value = self.hosts[0]
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shell.get_column_names.return_value = self.columns
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shell.debug = False
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return shell
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class TestExportTask(CopyTaskTest):
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def _test_get_ranges_murmur3_base(self, opts, expected_ranges):
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"""
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Set up a mock shell with a simple token map to test the ExportTask get_ranges function.
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"""
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shell = self.mock_shell()
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shell.conn.metadata.partitioner = 'Murmur3Partitioner'
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# token range for a cluster of 4 nodes with replication factor 3
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shell.get_ring.return_value = {
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Murmur3Token(-9223372036854775808): self.hosts[0:3],
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Murmur3Token(-4611686018427387904): self.hosts[1:4],
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Murmur3Token(0): [self.hosts[2], self.hosts[3], self.hosts[0]],
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Murmur3Token(4611686018427387904): [self.hosts[3], self.hosts[0], self.hosts[1]]
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}
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# merge override options with standard options
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overridden_opts = dict(self.opts)
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for k, v in opts.items():
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overridden_opts[k] = v
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export_task = ExportTask(shell, self.ks, self.table, self.columns, self.fname, overridden_opts, self.protocol_version, self.config_file)
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assert export_task.get_ranges() == expected_ranges
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export_task.close()
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def test_get_ranges_murmur3(self):
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"""
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Test behavior of ExportTask internal get_ranges function
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"""
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# return empty dict and print error if begin_token < min_token
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self._test_get_ranges_murmur3_base({'begintoken': MIN_LONG - 1}, {})
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# return empty dict and print error if begin_token < min_token
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self._test_get_ranges_murmur3_base({'begintoken': 1, 'endtoken': -1}, {})
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# simple case of a single range
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expected_ranges = {(1, 2): {'hosts': ('10.0.0.4', '10.0.0.1', '10.0.0.2'), 'attempts': 0, 'rows': 0, 'workerno': -1}}
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self._test_get_ranges_murmur3_base({'begintoken': 1, 'endtoken': 2}, expected_ranges)
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# simple case of two contiguous ranges
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expected_ranges = {
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(-4611686018427387903, 0): {'hosts': ('10.0.0.3', '10.0.0.4', '10.0.0.1'), 'attempts': 0, 'rows': 0, 'workerno': -1},
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(0, 1): {'hosts': ('10.0.0.4', '10.0.0.1', '10.0.0.2'), 'attempts': 0, 'rows': 0, 'workerno': -1}
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}
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self._test_get_ranges_murmur3_base({'begintoken': -4611686018427387903, 'endtoken': 1}, expected_ranges)
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# specify a begintoken only (endtoken defaults to None)
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expected_ranges = {
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(4611686018427387905, None): {'hosts': ('10.0.0.1', '10.0.0.2', '10.0.0.3'), 'attempts': 0, 'rows': 0, 'workerno': -1}
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}
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self._test_get_ranges_murmur3_base({'begintoken': 4611686018427387905}, expected_ranges)
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# specify an endtoken only (begintoken defaults to None)
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expected_ranges = {
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(None, MIN_LONG + 1): {'hosts': ('10.0.0.2', '10.0.0.3', '10.0.0.4'), 'attempts': 0, 'rows': 0, 'workerno': -1}
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}
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self._test_get_ranges_murmur3_base({'endtoken': MIN_LONG + 1}, expected_ranges)
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