Scrapegraph-ai/tests/utils/test_sys_dynamic_import.py

95 lines
2.2 KiB
Python

import os
import sys
import pytest
from scrapegraphai.utils.sys_dynamic_import import dynamic_import, srcfile_import
def _create_sample_file(filepath: str, content: str):
"""creates a sample file at some path with some content"""
with open(filepath, "w", encoding="utf-8") as f:
f.write(content)
def _delete_sample_file(filepath: str):
"""deletes a sample file at some path"""
if os.path.exists(filepath):
os.remove(filepath)
def test_srcfile_import_success():
modpath = "example1.py"
modname = "example1"
_create_sample_file(modpath, "def foo(): return 'bar'")
module = srcfile_import(modpath, modname)
assert hasattr(module, "foo")
assert module.foo() == "bar"
assert modname in sys.modules
_delete_sample_file(modpath)
def test_srcfile_import_missing_spec():
modpath = "nonexistent1.py"
modname = "nonexistent1"
with pytest.raises(FileNotFoundError):
srcfile_import(modpath, modname)
def test_srcfile_import_missing_spec_loader(mocker):
modpath = "example2.py"
modname = "example2"
_create_sample_file(modpath, "")
mock_spec = mocker.Mock(loader=None)
mocker.patch("importlib.util.spec_from_file_location", return_value=mock_spec)
with pytest.raises(ImportError) as error_info:
srcfile_import(modpath, modname)
assert "missing spec loader for module at" in str(error_info.value)
_delete_sample_file(modpath)
def test_dynamic_import_success():
print(sys.modules)
modname = "playwright"
assert modname not in sys.modules
dynamic_import(modname)
assert modname in sys.modules
import playwright # noqa: F401
def test_dynamic_import_module_already_imported():
modname = "json"
import json # noqa: F401
assert modname in sys.modules
dynamic_import(modname)
assert modname in sys.modules
def test_dynamic_import_import_error_with_custom_message():
modname = "nonexistent2"
message = "could not import module"
with pytest.raises(ImportError) as error_info:
dynamic_import(modname, message=message)
assert str(error_info.value) == message
assert modname not in sys.modules