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# Copyright (c) Microsoft Corporation.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
from playwright.sync_api import Page
from tests.server import Server
def test_should_work(page: Page, server: Server) -> None:
page.evaluate(
"""() => {
globalThis.objectToDestroy = { hello: 'world' };
globalThis.weakRef = new WeakRef(globalThis.objectToDestroy);
}"""
)
page.request_gc()
assert page.evaluate("() => globalThis.weakRef.deref()") == {"hello": "world"}
page.request_gc()
assert page.evaluate("() => globalThis.weakRef.deref()") == {"hello": "world"}
page.evaluate("() => globalThis.objectToDestroy = null")
page.request_gc()
assert page.evaluate("() => globalThis.weakRef.deref()") is None
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