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"""Tests for utils"""
# Copyright (c) Jupyter Development Team.
# Distributed under the terms of the Modified BSD License.
from __future__ import annotations
import asyncio
import os
import tempfile
import pytest
from jupyter_core.utils import (
deprecation,
ensure_async,
ensure_dir_exists,
ensure_event_loop,
run_sync,
)
def test_ensure_dir_exists():
with tempfile.TemporaryDirectory() as td:
ensure_dir_exists(td)
ensure_dir_exists(os.path.join(str(td), "foo"), 0o777)
def test_deprecation():
with pytest.deprecated_call():
deprecation("foo")
async def afunc():
return "afunc"
def func():
return "func"
sync_afunc = run_sync(afunc)
def test_run_sync():
async def foo():
return 1
foo_sync = run_sync(foo)
assert foo_sync() == 1
assert foo_sync() == 1
ensure_event_loop().close()
asyncio.set_event_loop(None)
assert foo_sync() == 1
ensure_event_loop().close()
asyncio.run(foo())
def test_ensure_async():
async def main():
assert await ensure_async(afunc()) == "afunc"
assert await ensure_async(func()) == "func"
asyncio.run(main())
def test_ensure_event_loop():
loop = ensure_event_loop()
async def inner():
return asyncio.get_running_loop()
inner_sync = run_sync(inner)
assert inner_sync() == loop
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