mirror of
https://github.com/simonw/sqlite-utils.git
synced 2026-07-23 09:24:31 +02:00
84 lines
2.2 KiB
Python
84 lines
2.2 KiB
Python
# flake8: noqa
|
|
import pytest
|
|
import sys
|
|
from unittest.mock import MagicMock
|
|
|
|
|
|
def test_register_function(fresh_db):
|
|
@fresh_db.register_function
|
|
def reverse_string(s):
|
|
return "".join(reversed(list(s)))
|
|
|
|
result = fresh_db.execute('select reverse_string("hello")').fetchone()[0]
|
|
assert result == "olleh"
|
|
|
|
|
|
def test_register_function_multiple_arguments(fresh_db):
|
|
@fresh_db.register_function
|
|
def a_times_b_plus_c(a, b, c):
|
|
return a * b + c
|
|
|
|
result = fresh_db.execute("select a_times_b_plus_c(2, 3, 4)").fetchone()[0]
|
|
assert result == 10
|
|
|
|
|
|
def test_register_function_deterministic(fresh_db):
|
|
@fresh_db.register_function(deterministic=True)
|
|
def to_lower(s):
|
|
return s.lower()
|
|
|
|
result = fresh_db.execute("select to_lower('BOB')").fetchone()[0]
|
|
assert result == "bob"
|
|
|
|
|
|
@pytest.mark.skipif(
|
|
sys.version_info < (3, 8), reason="deterministic=True was added in Python 3.8"
|
|
)
|
|
@pytest.mark.parametrize(
|
|
"fake_sqlite_version,should_use_deterministic",
|
|
(
|
|
("3.36.0", True),
|
|
("3.8.3", True),
|
|
("3.8.2", False),
|
|
),
|
|
)
|
|
def test_register_function_deterministic_registered(
|
|
fresh_db, fake_sqlite_version, should_use_deterministic
|
|
):
|
|
fresh_db.conn = MagicMock()
|
|
fresh_db.conn.create_function = MagicMock()
|
|
fresh_db.conn.execute().fetchall.return_value = [(fake_sqlite_version,)]
|
|
|
|
@fresh_db.register_function(deterministic=True)
|
|
def to_lower_2(s):
|
|
return s.lower()
|
|
|
|
expected_kwargs = {}
|
|
if should_use_deterministic:
|
|
expected_kwargs = dict(deterministic=True)
|
|
|
|
fresh_db.conn.create_function.assert_called_with(
|
|
"to_lower_2", 1, to_lower_2, **expected_kwargs
|
|
)
|
|
|
|
|
|
def test_register_function_replace(fresh_db):
|
|
@fresh_db.register_function()
|
|
def one():
|
|
return "one"
|
|
|
|
assert "one" == fresh_db.execute("select one()").fetchone()[0]
|
|
|
|
# This will fail to replace the function:
|
|
@fresh_db.register_function()
|
|
def one(): # noqa
|
|
return "two"
|
|
|
|
assert "one" == fresh_db.execute("select one()").fetchone()[0]
|
|
|
|
# This will replace it
|
|
@fresh_db.register_function(replace=True)
|
|
def one(): # noqa
|
|
return "two"
|
|
|
|
assert "two" == fresh_db.execute("select one()").fetchone()[0]
|