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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 datetime import datetime
import pytest
from playwright.async_api import ConsoleMessage, Error, Page
async def test_should_timeout(page: Page) -> None:
start_time = datetime.now()
timeout = 42
await page.wait_for_timeout(timeout)
assert ((datetime.now() - start_time).microseconds * 1000) >= timeout / 2
async def test_should_accept_a_string(page: Page) -> None:
watchdog = page.wait_for_function("window.__FOO === 1")
await page.evaluate("window['__FOO'] = 1")
await watchdog
async def test_should_work_when_resolved_right_before_execution_context_disposal(
page: Page,
) -> None:
await page.add_init_script("window['__RELOADED'] = true")
await page.wait_for_function(
"""() => {
if (!window['__RELOADED'])
window.location.reload();
return true;
}"""
)
async def test_should_poll_on_interval(page: Page) -> None:
polling = 100
time_delta = await page.wait_for_function(
"""() => {
if (!window['__startTime']) {
window['__startTime'] = Date.now();
return false;
}
return Date.now() - window['__startTime'];
}""",
polling=polling,
)
assert await time_delta.json_value() >= polling
async def test_should_avoid_side_effects_after_timeout(page: Page) -> None:
counter = 0
async def on_console(message: ConsoleMessage) -> None:
nonlocal counter
counter += 1
page.on("console", on_console)
with pytest.raises(Error) as exc_info:
await page.wait_for_function(
"""() => {
window['counter'] = (window['counter'] || 0) + 1;
console.log(window['counter']);
}""",
polling=1,
timeout=1000,
)
saved_counter = counter
await page.wait_for_timeout(2000) # Give it some time to produce more logs.
assert "Timeout 1000ms exceeded" in exc_info.value.message
assert counter == saved_counter
async def test_should_throw_on_polling_mutation(page: Page) -> None:
with pytest.raises(Error) as exc_info:
await page.wait_for_function("() => true", polling="mutation") # type: ignore
assert "Unknown polling option: mutation" in exc_info.value.message
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