Coverage for tests/test_apdbCassandra.py : 31%

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1# This file is part of dax_apdb.
2#
3# Developed for the LSST Data Management System.
4# This product includes software developed by the LSST Project
5# (http://www.lsst.org).
6# See the COPYRIGHT file at the top-level directory of this distribution
7# for details of code ownership.
8#
9# This program is free software: you can redistribute it and/or modify
10# it under the terms of the GNU General Public License as published by
11# the Free Software Foundation, either version 3 of the License, or
12# (at your option) any later version.
13#
14# This program is distributed in the hope that it will be useful,
15# but WITHOUT ANY WARRANTY; without even the implied warranty of
16# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17# GNU General Public License for more details.
18#
19# You should have received a copy of the GNU General Public License
20# along with this program. If not, see <http://www.gnu.org/licenses/>.
22"""Unit test for `ApdbCassandra` class.
24Notes
25-----
26For now this test can only run against actual Cassandra cluster, to specify
27cluster location use ``DAX_APDB_TEST_CASSANDRA_CLUSTER`` environment variable,
28e.g.:
30 export DAX_APDB_TEST_CASSANDRA_CLUSTER=cassandra.example.com
31 pytest tests/test_apdbCassandra.py
33Individual tests create and destroy unique keyspaces in the cluster, there is
34no need to pre-create a keyspace with predefined name.
35"""
37import logging
38import os
39from typing import Any
40import unittest
41import uuid
43from lsst.dax.apdb import ApdbCassandra, ApdbCassandraConfig, ApdbConfig, ApdbTables
44from lsst.dax.apdb.apdbCassandra import CASSANDRA_IMPORTED
45from lsst.dax.apdb.tests import ApdbTest
46import lsst.utils.tests
49logging.basicConfig(level=logging.INFO)
52class ApdbCassandraTestCase(unittest.TestCase, ApdbTest):
53 """A test case for ApdbCassandra class
54 """
56 time_partition_tables = False
57 time_partition_start = None
58 time_partition_end = None
60 @classmethod
61 def setUpClass(cls):
62 """Prepare config for server connection.
63 """
64 cluster_host = os.environ.get("DAX_APDB_TEST_CASSANDRA_CLUSTER")
65 if not cluster_host:
66 raise unittest.SkipTest("DAX_APDB_TEST_CASSANDRA_CLUSTER is not set")
67 if not CASSANDRA_IMPORTED:
68 raise unittest.SkipTest("cassandra_driver cannot be imported")
70 def setUp(self):
71 """Prepare config for server connection.
72 """
73 self.cluster_host = os.environ.get("DAX_APDB_TEST_CASSANDRA_CLUSTER")
74 self.keyspace = ""
76 config = self.make_config()
78 # create dedicated keyspace for each test
79 key = uuid.uuid4()
80 self.keyspace = f"apdb_{key.hex}"
81 query = f"CREATE KEYSPACE {self.keyspace}" \
82 " WITH replication = {'class': 'SimpleStrategy', 'replication_factor': 1}"
84 apdb = ApdbCassandra(config)
85 apdb._session.execute(query)
86 del apdb
88 def tearDown(self):
90 config = self.make_config()
91 apdb = ApdbCassandra(config)
92 query = f"DROP KEYSPACE {self.keyspace}"
93 apdb._session.execute(query)
94 del apdb
96 def make_config(self, **kwargs: Any) -> ApdbConfig:
97 """Make config class instance used in all tests."""
98 kw = {
99 "contact_points": [self.cluster_host],
100 "keyspace": self.keyspace,
101 "time_partition_tables": self.time_partition_tables,
102 }
103 if self.time_partition_start:
104 kw["time_partition_start"] = self.time_partition_start
105 if self.time_partition_end:
106 kw["time_partition_end"] = self.time_partition_end
107 kw.update(kwargs)
108 return ApdbCassandraConfig(**kw)
110 def n_columns(self, table: ApdbTables) -> int:
111 """Return number of columns for a specified table."""
113 if table is ApdbTables.DiaObject:
114 # DiaObjectLast is used
115 table = ApdbTables.DiaObjectLast
117 # Tables add one or two partitioning columns depending on config
118 if table is ApdbTables.DiaObjectLast:
119 n_part_columns = 1
120 else:
121 if self.time_partition_tables:
122 n_part_columns = 1
123 else:
124 n_part_columns = 2
126 if table is ApdbTables.DiaObject:
127 return self.n_obj_columns + n_part_columns
128 elif table is ApdbTables.DiaObjectLast:
129 return self.n_obj_last_columns + n_part_columns
130 elif table is ApdbTables.DiaSource:
131 return self.n_src_columns + n_part_columns
132 elif table is ApdbTables.DiaForcedSource:
133 return self.n_fsrc_columns + n_part_columns
136class ApdbCassandraPerMonthTestCase(ApdbCassandraTestCase):
137 """A test case for ApdbCassandra class with per-month tables.
138 """
140 time_partition_tables = True
141 time_partition_start = "2019-12-01T00:00:00"
142 time_partition_end = "2022-01-01T00:00:00"
145class MyMemoryTestCase(lsst.utils.tests.MemoryTestCase):
146 pass
149def setup_module(module):
150 lsst.utils.tests.init()
153if __name__ == "__main__": 153 ↛ 154line 153 didn't jump to line 154, because the condition on line 153 was never true
154 lsst.utils.tests.init()
155 unittest.main()