Nominatim/test/python/tools/test_migration.py
Sarah Hoffmann 82216ebf8b always run function update on migrations
This means that we can have migrations which require nothing but
an update of the functions.
2023-07-01 20:18:59 +02:00

236 lines
8.8 KiB
Python

# SPDX-License-Identifier: GPL-2.0-only
#
# This file is part of Nominatim. (https://nominatim.org)
#
# Copyright (C) 2022 by the Nominatim developer community.
# For a full list of authors see the git log.
"""
Tests for migration functions
"""
import pytest
import psycopg2.extras
from nominatim.tools import migration
from nominatim.errors import UsageError
import nominatim.version
from mock_legacy_word_table import MockLegacyWordTable
class DummyTokenizer:
def update_sql_functions(self, config):
pass
@pytest.fixture
def postprocess_mock(monkeypatch):
monkeypatch.setattr(migration.refresh, 'create_functions', lambda *args: args)
monkeypatch.setattr(migration.tokenizer_factory, 'get_tokenizer_for_db',
lambda *args: DummyTokenizer())
@pytest.fixture
def legacy_word_table(temp_db_conn):
return MockLegacyWordTable(temp_db_conn)
def test_no_migration_old_versions(temp_db_with_extensions, table_factory, def_config):
table_factory('country_name', 'name HSTORE, country_code TEXT')
with pytest.raises(UsageError, match='Migration not possible'):
migration.migrate(def_config, {})
def test_set_up_migration_for_36(temp_db_with_extensions, temp_db_cursor,
table_factory, def_config, monkeypatch,
postprocess_mock):
psycopg2.extras.register_hstore(temp_db_cursor)
# don't actually run any migration, except the property table creation
monkeypatch.setattr(migration, '_MIGRATION_FUNCTIONS',
[((3, 5, 0, 99), migration.add_nominatim_property_table)])
# Use a r/o user name that always exists
monkeypatch.setenv('NOMINATIM_DATABASE_WEBUSER', 'postgres')
table_factory('country_name', 'name HSTORE, country_code TEXT',
(({str(x): 'a' for x in range(200)}, 'gb'),))
assert not temp_db_cursor.table_exists('nominatim_properties')
assert migration.migrate(def_config, {}) == 0
assert temp_db_cursor.table_exists('nominatim_properties')
assert 1 == temp_db_cursor.scalar(""" SELECT count(*) FROM nominatim_properties
WHERE property = 'database_version'""")
def test_already_at_version(def_config, property_table):
property_table.set('database_version',
'{0[0]}.{0[1]}.{0[2]}-{0[3]}'.format(nominatim.version.NOMINATIM_VERSION))
assert migration.migrate(def_config, {}) == 0
def test_run_single_migration(def_config, temp_db_cursor, property_table,
monkeypatch, postprocess_mock):
oldversion = [x for x in nominatim.version.NOMINATIM_VERSION]
oldversion[0] -= 1
property_table.set('database_version',
'{0[0]}.{0[1]}.{0[2]}-{0[3]}'.format(oldversion))
done = {'old': False, 'new': False}
def _migration(**_):
""" Dummy migration"""
done['new'] = True
def _old_migration(**_):
""" Dummy migration"""
done['old'] = True
oldversion[0] = 0
monkeypatch.setattr(migration, '_MIGRATION_FUNCTIONS',
[(tuple(oldversion), _old_migration),
(nominatim.version.NOMINATIM_VERSION, _migration)])
assert migration.migrate(def_config, {}) == 0
assert done['new']
assert not done['old']
assert property_table.get('database_version') == \
'{0[0]}.{0[1]}.{0[2]}-{0[3]}'.format(nominatim.version.NOMINATIM_VERSION)
###### Tests for specific migrations
#
# Each migration should come with two tests:
# 1. Test that migration from old to new state works as expected.
# 2. Test that the migration can be rerun on the new state without side effects.
@pytest.mark.parametrize('in_attr', ('', 'with time zone'))
def test_import_status_timestamp_change(temp_db_conn, temp_db_cursor,
table_factory, in_attr):
table_factory('import_status',
f"""lastimportdate timestamp {in_attr},
sequence_id integer,
indexed boolean""")
migration.import_status_timestamp_change(temp_db_conn)
temp_db_conn.commit()
assert temp_db_cursor.scalar("""SELECT data_type FROM information_schema.columns
WHERE table_name = 'import_status'
and column_name = 'lastimportdate'""")\
== 'timestamp with time zone'
def test_add_nominatim_property_table(temp_db_conn, temp_db_cursor,
def_config, monkeypatch):
# Use a r/o user name that always exists
monkeypatch.setenv('NOMINATIM_DATABASE_WEBUSER', 'postgres')
assert not temp_db_cursor.table_exists('nominatim_properties')
migration.add_nominatim_property_table(temp_db_conn, def_config)
temp_db_conn.commit()
assert temp_db_cursor.table_exists('nominatim_properties')
def test_add_nominatim_property_table_repeat(temp_db_conn, temp_db_cursor,
def_config, property_table):
assert temp_db_cursor.table_exists('nominatim_properties')
migration.add_nominatim_property_table(temp_db_conn, def_config)
temp_db_conn.commit()
assert temp_db_cursor.table_exists('nominatim_properties')
def test_change_housenumber_transliteration(temp_db_conn, temp_db_cursor,
legacy_word_table, placex_table):
placex_table.add(housenumber='3A')
temp_db_cursor.execute("""CREATE OR REPLACE FUNCTION make_standard_name(name TEXT)
RETURNS TEXT AS $$ SELECT lower(name) $$ LANGUAGE SQL """)
temp_db_cursor.execute("""CREATE OR REPLACE FUNCTION getorcreate_housenumber_id(lookup_word TEXT)
RETURNS INTEGER AS $$ SELECT 4325 $$ LANGUAGE SQL """)
migration.change_housenumber_transliteration(temp_db_conn)
temp_db_conn.commit()
assert temp_db_cursor.scalar('SELECT housenumber from placex') == '3a'
migration.change_housenumber_transliteration(temp_db_conn)
temp_db_conn.commit()
assert temp_db_cursor.scalar('SELECT housenumber from placex') == '3a'
def test_switch_placenode_geometry_index(temp_db_conn, temp_db_cursor, placex_table):
temp_db_cursor.execute("""CREATE INDEX idx_placex_adminname
ON placex (place_id)""")
migration.switch_placenode_geometry_index(temp_db_conn)
temp_db_conn.commit()
assert temp_db_cursor.index_exists('placex', 'idx_placex_geometry_placenode')
assert not temp_db_cursor.index_exists('placex', 'idx_placex_adminname')
def test_switch_placenode_geometry_index_repeat(temp_db_conn, temp_db_cursor, placex_table):
temp_db_cursor.execute("""CREATE INDEX idx_placex_geometry_placenode
ON placex (place_id)""")
migration.switch_placenode_geometry_index(temp_db_conn)
temp_db_conn.commit()
assert temp_db_cursor.index_exists('placex', 'idx_placex_geometry_placenode')
assert not temp_db_cursor.index_exists('placex', 'idx_placex_adminname')
assert temp_db_cursor.scalar("""SELECT indexdef from pg_indexes
WHERE tablename = 'placex'
and indexname = 'idx_placex_geometry_placenode'
""").endswith('(place_id)')
def test_install_legacy_tokenizer(temp_db_conn, temp_db_cursor, project_env,
property_table, table_factory, monkeypatch,
tmp_path):
table_factory('placex', 'place_id BIGINT')
table_factory('location_property_osmline', 'place_id BIGINT')
# Setting up the tokenizer is problematic
class MiniTokenizer:
def migrate_database(self, config):
pass
monkeypatch.setattr(migration.tokenizer_factory, 'create_tokenizer',
lambda cfg, **kwargs: MiniTokenizer())
migration.install_legacy_tokenizer(temp_db_conn, project_env)
temp_db_conn.commit()
def test_install_legacy_tokenizer_repeat(temp_db_conn, temp_db_cursor,
def_config, property_table):
property_table.set('tokenizer', 'dummy')
migration.install_legacy_tokenizer(temp_db_conn, def_config)
temp_db_conn.commit()
def test_create_tiger_housenumber_index(temp_db_conn, temp_db_cursor, table_factory):
table_factory('location_property_tiger',
'parent_place_id BIGINT, startnumber INT, endnumber INT')
migration.create_tiger_housenumber_index(temp_db_conn)
temp_db_conn.commit()
if temp_db_conn.server_version_tuple() >= (11, 0, 0):
assert temp_db_cursor.index_exists('location_property_tiger',
'idx_location_property_tiger_housenumber_migrated')
migration.create_tiger_housenumber_index(temp_db_conn)
temp_db_conn.commit()