ipython/tests/test_deepreload.py at python-3.14-dev · krassowski/ipython · GitHub

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# -*- coding: utf-8 -*-

"""Test suite for the deepreload module."""

# Copyright (c) IPython Development Team.

# Distributed under the terms of the Modified BSD License.

import types

from pathlib import Path

import pytest

from tempfile import TemporaryDirectory

from IPython.lib.deepreload import modules_reloading

from IPython.lib.deepreload import reload as dreload

from IPython.utils.syspathcontext import prepended_to_syspath

def test_deepreload():

"Test that dreload does deep reloads and skips excluded modules."

with TemporaryDirectory() as tmpdir:

with prepended_to_syspath(tmpdir):

tmpdirpath = Path(tmpdir)

with open(tmpdirpath / "A.py", "w", encoding="utf-8") as f:

f.write("class Object:\n pass\nok = True\n")

with open(tmpdirpath / "B.py", "w", encoding="utf-8") as f:

f.write("import A\nassert A.ok, 'we are fine'\n")

import A

import B

# Test that A is not reloaded.

obj = A.Object()

dreload(B, exclude=["A"])

assert isinstance(obj, A.Object) is True

# Test that an import failure will not blow-up us.

A.ok = False

with pytest.raises(AssertionError, match="we are fine"):

dreload(B, exclude=["A"])

assert len(modules_reloading) == 0

assert not A.ok

# Test that A is reloaded.

obj = A.Object()

A.ok = False

dreload(B)

assert A.ok

assert isinstance(obj, A.Object) is False

def test_not_module():

pytest.raises(TypeError, dreload, "modulename")

def test_not_in_sys_modules():

fake_module = types.ModuleType("fake_module")

with pytest.raises(ImportError, match="not in sys.modules"):

dreload(fake_module)

ipython/tests/test_deepreload.py at python-3.14-dev · krassowski/ipython · GitHub

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