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106 lines
2.6 KiB
Python
106 lines
2.6 KiB
Python
"""
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Tests for specialised conenction and cursor classes.
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"""
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import pytest
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import psycopg2
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from nominatim.db.connection import connect, get_pg_env
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@pytest.fixture
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def db(dsn):
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with connect(dsn) as conn:
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yield conn
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def test_connection_table_exists(db, table_factory):
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assert not db.table_exists('foobar')
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table_factory('foobar')
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assert db.table_exists('foobar')
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def test_connection_index_exists(db, table_factory, temp_db_cursor):
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assert not db.index_exists('some_index')
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table_factory('foobar')
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temp_db_cursor.execute('CREATE INDEX some_index ON foobar(id)')
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assert db.index_exists('some_index')
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assert db.index_exists('some_index', table='foobar')
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assert not db.index_exists('some_index', table='bar')
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def test_drop_table_existing(db, table_factory):
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table_factory('dummy')
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assert db.table_exists('dummy')
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db.drop_table('dummy')
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assert not db.table_exists('dummy')
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def test_drop_table_non_existsing(db):
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db.drop_table('dfkjgjriogjigjgjrdghehtre')
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def test_drop_table_non_existing_force(db):
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with pytest.raises(psycopg2.ProgrammingError, match='.*does not exist.*'):
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db.drop_table('dfkjgjriogjigjgjrdghehtre', if_exists=False)
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def test_connection_server_version_tuple(db):
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ver = db.server_version_tuple()
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assert isinstance(ver, tuple)
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assert len(ver) == 2
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assert ver[0] > 8
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def test_connection_postgis_version_tuple(db, temp_db_with_extensions):
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ver = db.postgis_version_tuple()
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assert isinstance(ver, tuple)
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assert len(ver) == 2
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assert ver[0] >= 2
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def test_cursor_scalar(db, table_factory):
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table_factory('dummy')
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with db.cursor() as cur:
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assert cur.scalar('SELECT count(*) FROM dummy') == 0
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def test_cursor_scalar_many_rows(db):
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with db.cursor() as cur:
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with pytest.raises(RuntimeError):
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cur.scalar('SELECT * FROM pg_tables')
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def test_cursor_scalar_no_rows(db, table_factory):
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table_factory('dummy')
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with db.cursor() as cur:
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with pytest.raises(RuntimeError):
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cur.scalar('SELECT id FROM dummy')
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def test_get_pg_env_add_variable(monkeypatch):
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monkeypatch.delenv('PGPASSWORD', raising=False)
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env = get_pg_env('user=fooF')
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assert env['PGUSER'] == 'fooF'
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assert 'PGPASSWORD' not in env
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def test_get_pg_env_overwrite_variable(monkeypatch):
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monkeypatch.setenv('PGUSER', 'some default')
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env = get_pg_env('user=overwriter')
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assert env['PGUSER'] == 'overwriter'
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def test_get_pg_env_ignore_unknown():
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env = get_pg_env('client_encoding=stuff', base_env={})
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assert env == {}
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