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57 changes: 9 additions & 48 deletions playwright/_impl/_connection.py
Original file line number Diff line number Diff line change
Expand Up @@ -143,21 +143,13 @@ async def _inner_send(
callback = self._connection._send_message_to_server(
self._object, method, augmented_params, timeout
)
try:
done, _ = await asyncio.wait(
{
self._connection._transport.on_error_future,
callback.future,
},
return_when=asyncio.FIRST_COMPLETED,
)
except asyncio.CancelledError as exc:
await self._connection._abort(
self._object,
callback,
str(exc) or "Task was cancelled",
)
raise
done, _ = await asyncio.wait(
{
self._connection._transport.on_error_future,
callback.future,
},
return_when=asyncio.FIRST_COMPLETED,
)
if not callback.future.done():
callback.future.cancel()
result = next(iter(done)).result()
Expand Down Expand Up @@ -249,10 +241,7 @@ def remove_listener(self, event: str, f: Any) -> None:


class ProtocolCallback:
def __init__(
self, loop: asyncio.AbstractEventLoop, id: int, no_reply: bool = False
) -> None:
self.id = id
def __init__(self, loop: asyncio.AbstractEventLoop, no_reply: bool = False) -> None:
self.stack_trace: traceback.StackSummary
self.no_reply = no_reply
self.future = loop.create_future()
Expand Down Expand Up @@ -404,7 +393,7 @@ def _send_message_to_server(
)
self._last_id += 1
id = self._last_id
callback = ProtocolCallback(self._loop, id, no_reply=no_reply)
callback = ProtocolCallback(self._loop, no_reply=no_reply)
task = asyncio.current_task(self._loop)
callback.stack_trace = cast(
traceback.StackSummary,
Expand Down Expand Up @@ -449,34 +438,6 @@ def _send_message_to_server(

return callback

async def _abort(
self, object: ChannelOwner, callback: ProtocolCallback, reason: str
) -> None:
try:
self._transport.send(
{
"guid": object._guid,
"method": "__abort__",
"params": {"id": callback.id, "reason": reason},
}
)
except (Error, OSError):
pass
try:
done, _ = await asyncio.wait(
{
self._transport.on_error_future,
callback.future,
},
return_when=asyncio.FIRST_COMPLETED,
)
finally:
if not callback.future.done():
callback.future.cancel()
for future in done:
if not future.cancelled():
future.exception()

def dispatch(self, msg: ParsedMessagePayload) -> None:
if self._closed_error:
return
Expand Down
20 changes: 4 additions & 16 deletions tests/async/test_asyncio.py
Original file line number Diff line number Diff line change
Expand Up @@ -27,8 +27,7 @@


async def test_should_cancel_underlying_protocol_calls(
browser_name: str,
launch_arguments: Dict,
browser_name: str, launch_arguments: Dict
) -> None:
handler_exception = None

Expand All @@ -41,23 +40,12 @@ def exception_handler(loop: asyncio.AbstractEventLoop, context: Dict) -> None:
async with async_playwright() as p:
browser = await p[browser_name].launch(**launch_arguments)
page = await browser.new_page()
await page.set_content(
"""
<button disabled onclick="window.clicked = true">click me</button>
<script>window.clicked = false</script>
"""
)
task = asyncio.create_task(page.locator("button").click(timeout=0))
await page.wait_for_timeout(100)
assert not task.done()

task = asyncio.create_task(page.wait_for_selector("will-never-find"))
# make sure that the wait_for_selector message was sent to the server (driver)
await asyncio.sleep(0.1)
task.cancel()
with pytest.raises(asyncio.CancelledError):
await task

await page.locator("button").evaluate("button => button.disabled = false")
await page.wait_for_timeout(700)
assert not await page.evaluate("window.clicked")
await browser.close()

# The actual 'Future exception was never retrieved' is logged inside the Future destructor (__del__).
Expand Down