Nominatim/test/python/test_db_sql_preprocessor.py
2021-05-19 23:07:39 +02:00

40 lines
1.2 KiB
Python

"""
Tests for SQL preprocessing.
"""
import pytest
@pytest.fixture
def sql_factory(tmp_path):
def _mk_sql(sql_body):
(tmp_path / 'test.sql').write_text("""
CREATE OR REPLACE FUNCTION test() RETURNS TEXT
AS $$
BEGIN
{}
END;
$$ LANGUAGE plpgsql IMMUTABLE;""".format(sql_body))
return 'test.sql'
return _mk_sql
@pytest.mark.parametrize("expr,ret", [
("'a'", 'a'),
("'{{db.partitions|join}}'", '012'),
("{% if 'country_name' in db.tables %}'yes'{% else %}'no'{% endif %}", "yes"),
("{% if 'xxx' in db.tables %}'yes'{% else %}'no'{% endif %}", "no"),
])
def test_load_file_simple(sql_preprocessor, sql_factory, temp_db_conn, temp_db_cursor, expr, ret):
sqlfile = sql_factory("RETURN {};".format(expr))
sql_preprocessor.run_sql_file(temp_db_conn, sqlfile)
assert temp_db_cursor.scalar('SELECT test()') == ret
def test_load_file_with_params(sql_preprocessor, sql_factory, temp_db_conn, temp_db_cursor):
sqlfile = sql_factory("RETURN '{{ foo }} {{ bar }}';")
sql_preprocessor.run_sql_file(temp_db_conn, sqlfile, bar='XX', foo='ZZ')
assert temp_db_cursor.scalar('SELECT test()') == 'ZZ XX'