Nominatim/test/python/tools/test_database_import.py

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# SPDX-License-Identifier: GPL-3.0-or-later
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#
# This file is part of Nominatim. (https://nominatim.org)
#
# Copyright (C) 2024 by the Nominatim developer community.
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# For a full list of authors see the git log.
"""
Tests for functions to import a new database.
"""
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from pathlib import Path
import pytest
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import pytest_asyncio
import psycopg
from psycopg import sql as pysql
from nominatim_db.tools import database_import
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from nominatim_db.errors import UsageError
class TestDatabaseSetup:
DBNAME = 'test_nominatim_python_unittest'
@pytest.fixture(autouse=True)
def setup_nonexistant_db(self):
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with psycopg.connect(dbname='postgres', autocommit=True) as conn:
with conn.cursor() as cur:
cur.execute(f'DROP DATABASE IF EXISTS {self.DBNAME}')
yield True
with conn.cursor() as cur:
cur.execute(f'DROP DATABASE IF EXISTS {self.DBNAME}')
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@pytest.fixture
def cursor(self):
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with psycopg.connect(dbname=self.DBNAME) as conn:
with conn.cursor() as cur:
yield cur
def conn(self):
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return psycopg.connect(dbname=self.DBNAME)
def test_setup_skeleton(self):
database_import.setup_database_skeleton(f'dbname={self.DBNAME}')
# Check that all extensions are set up.
with self.conn() as conn:
with conn.cursor() as cur:
cur.execute('CREATE TABLE t (h HSTORE, geom GEOMETRY(Geometry, 4326))')
def test_unsupported_pg_version(self, monkeypatch):
monkeypatch.setattr(database_import, 'POSTGRESQL_REQUIRED_VERSION', (100, 4))
with pytest.raises(UsageError, match='PostgreSQL server is too old.'):
database_import.setup_database_skeleton(f'dbname={self.DBNAME}')
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def test_create_db_explicit_ro_user(self):
database_import.setup_database_skeleton(f'dbname={self.DBNAME}',
rouser='postgres')
def test_create_db_missing_ro_user(self):
with pytest.raises(UsageError, match='Missing read-only user.'):
database_import.setup_database_skeleton(f'dbname={self.DBNAME}',
rouser='sdfwkjkjgdugu2;jgsafkljas;')
def test_setup_extensions_old_postgis(self, monkeypatch):
monkeypatch.setattr(database_import, 'POSTGIS_REQUIRED_VERSION', (50, 50))
with pytest.raises(UsageError, match='PostGIS is too old.'):
database_import.setup_database_skeleton(f'dbname={self.DBNAME}')
def test_setup_skeleton_already_exists(temp_db):
with pytest.raises(UsageError):
database_import.setup_database_skeleton(f'dbname={temp_db}')
def test_import_osm_data_simple(table_factory, osm2pgsql_options, capfd):
table_factory('place', content=((1, ), ))
database_import.import_osm_data(Path('file.pbf'), osm2pgsql_options)
captured = capfd.readouterr()
assert '--create' in captured.out
assert '--output gazetteer' in captured.out
assert f'--style {osm2pgsql_options["osm2pgsql_style"]}' in captured.out
assert f'--number-processes {osm2pgsql_options["threads"]}' in captured.out
assert f'--cache {osm2pgsql_options["osm2pgsql_cache"]}' in captured.out
assert 'file.pbf' in captured.out
def test_import_osm_data_multifile(table_factory, tmp_path, osm2pgsql_options, capfd):
table_factory('place', content=((1, ), ))
osm2pgsql_options['osm2pgsql_cache'] = 0
files = [tmp_path / 'file1.osm', tmp_path / 'file2.osm']
for f in files:
f.write_text('test')
database_import.import_osm_data(files, osm2pgsql_options)
captured = capfd.readouterr()
assert 'file1.osm' in captured.out
assert 'file2.osm' in captured.out
def test_import_osm_data_simple_no_data(table_factory, osm2pgsql_options):
table_factory('place')
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with pytest.raises(UsageError, match='No data imported'):
database_import.import_osm_data(Path('file.pbf'), osm2pgsql_options)
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def test_import_osm_data_simple_ignore_no_data(table_factory, osm2pgsql_options):
table_factory('place')
database_import.import_osm_data(Path('file.pbf'), osm2pgsql_options,
ignore_errors=True)
def test_import_osm_data_drop(table_factory, temp_db_cursor, tmp_path, osm2pgsql_options):
table_factory('place', content=((1, ), ))
table_factory('planet_osm_nodes')
flatfile = tmp_path / 'flatfile'
flatfile.write_text('touch')
osm2pgsql_options['flatnode_file'] = str(flatfile.resolve())
database_import.import_osm_data(Path('file.pbf'), osm2pgsql_options, drop=True)
assert not flatfile.exists()
assert not temp_db_cursor.table_exists('planet_osm_nodes')
def test_import_osm_data_default_cache(table_factory, osm2pgsql_options, capfd):
table_factory('place', content=((1, ), ))
osm2pgsql_options['osm2pgsql_cache'] = 0
database_import.import_osm_data(Path(__file__), osm2pgsql_options)
captured = capfd.readouterr()
assert f'--cache {osm2pgsql_options["osm2pgsql_cache"]}' in captured.out
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@pytest.mark.parametrize("with_search", (True, False))
def test_truncate_database_tables(temp_db_conn, temp_db_cursor, table_factory, with_search):
tables = ['placex', 'place_addressline', 'location_area',
'location_area_country',
'location_property_tiger', 'location_property_osmline',
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'location_postcode', 'location_road_23']
if with_search:
tables.append('search_name')
for table in tables:
table_factory(table, content=((1, ), (2, ), (3, )))
assert temp_db_cursor.table_rows(table) == 3
database_import.truncate_data_tables(temp_db_conn)
for table in tables:
assert temp_db_cursor.table_rows(table) == 0
@pytest.mark.parametrize("threads", (1, 5))
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@pytest.mark.asyncio
async def test_load_data(dsn, place_row, placex_table, osmline_table,
temp_db_cursor, threads):
for func in ('precompute_words', 'getorcreate_housenumber_id', 'make_standard_name'):
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temp_db_cursor.execute(pysql.SQL("""CREATE FUNCTION {} (src TEXT)
RETURNS TEXT AS $$ SELECT 'a'::TEXT $$ LANGUAGE SQL
""").format(pysql.Identifier(func)))
for oid in range(100, 130):
place_row(osm_id=oid)
place_row(osm_type='W', osm_id=342, cls='place', typ='houses',
geom='SRID=4326;LINESTRING(0 0, 10 10)')
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await database_import.load_data(dsn, threads)
assert temp_db_cursor.table_rows('placex') == 30
assert temp_db_cursor.table_rows('location_property_osmline') == 1
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class TestSetupSQL:
@pytest.fixture(autouse=True)
def init_env(self, temp_db, tmp_path, def_config, sql_preprocessor_cfg):
def_config.lib_dir.sql = tmp_path / 'sql'
def_config.lib_dir.sql.mkdir()
self.config = def_config
def write_sql(self, fname, content):
(self.config.lib_dir.sql / fname).write_text(content)
@pytest.mark.parametrize("reverse", [True, False])
def test_create_tables(self, temp_db_conn, temp_db_cursor, reverse):
self.write_sql('tables.sql',
"""CREATE FUNCTION test() RETURNS bool
AS $$ SELECT {{db.reverse_only}} $$ LANGUAGE SQL""")
database_import.create_tables(temp_db_conn, self.config, reverse)
temp_db_cursor.scalar('SELECT test()') == reverse
def test_create_table_triggers(self, temp_db_conn, temp_db_cursor):
self.write_sql('table-triggers.sql',
"""CREATE FUNCTION test() RETURNS TEXT
AS $$ SELECT 'a'::text $$ LANGUAGE SQL""")
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database_import.create_table_triggers(temp_db_conn, self.config)
temp_db_cursor.scalar('SELECT test()') == 'a'
def test_create_partition_tables(self, temp_db_conn, temp_db_cursor):
self.write_sql('partition-tables.src.sql',
"""CREATE FUNCTION test() RETURNS TEXT
AS $$ SELECT 'b'::text $$ LANGUAGE SQL""")
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database_import.create_partition_tables(temp_db_conn, self.config)
temp_db_cursor.scalar('SELECT test()') == 'b'
@pytest.mark.parametrize("drop", [True, False])
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@pytest.mark.asyncio
async def test_create_search_indices(self, temp_db_conn, temp_db_cursor, drop):
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self.write_sql('indices.sql',
"""CREATE FUNCTION test() RETURNS bool
AS $$ SELECT {{drop}} $$ LANGUAGE SQL""")
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await database_import.create_search_indices(temp_db_conn, self.config, drop)
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temp_db_cursor.scalar('SELECT test()') == drop