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test_browsertype_connect.py
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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.
import time
from typing import Callable
import pytest
from playwright.sync_api import BrowserType, Error
from tests.conftest import RemoteServer
from tests.server import Server
def test_browser_type_connect_slow_mo(
server: Server, browser_type: BrowserType, launch_server: Callable[[], RemoteServer]
) -> None:
remote_server = launch_server()
browser = browser_type.connect(remote_server.ws_endpoint, slow_mo=100)
browser_context = browser.new_context()
t1 = time.monotonic()
page = browser_context.new_page()
assert page.evaluate("11 * 11") == 121
assert (time.monotonic() - t1) >= 0.2
page.goto(server.EMPTY_PAGE)
browser.close()
def test_browser_type_connect_should_be_able_to_reconnect_to_a_browser(
server: Server, browser_type: BrowserType, launch_server: Callable[[], RemoteServer]
) -> None:
remote_server = launch_server()
browser = browser_type.connect(remote_server.ws_endpoint)
browser_context = browser.new_context()
assert len(browser_context.pages) == 0
page = browser_context.new_page()
assert len(browser_context.pages) == 1
assert page.evaluate("11 * 11") == 121
page.goto(server.EMPTY_PAGE)
browser.close()
browser = browser_type.connect(remote_server.ws_endpoint)
browser_context = browser.new_context()
page = browser_context.new_page()
page.goto(server.EMPTY_PAGE)
browser.close()
def test_browser_type_connect_should_be_able_to_connect_two_browsers_at_the_same_time(
browser_type: BrowserType, launch_server: Callable[[], RemoteServer]
) -> None:
remote_server = launch_server()
browser1 = browser_type.connect(remote_server.ws_endpoint)
assert len(browser1.contexts) == 0
browser1.new_context()
assert len(browser1.contexts) == 1
browser2 = browser_type.connect(remote_server.ws_endpoint)
assert len(browser2.contexts) == 0
browser2.new_context()
assert len(browser2.contexts) == 1
assert len(browser1.contexts) == 1
browser1.close()
page2 = browser2.new_page()
# original browser should still work
assert page2.evaluate("7 * 6") == 42
browser2.close()
def test_browser_type_connect_disconnected_event_should_be_emitted_when_browser_is_closed_or_server_is_closed(
browser_type: BrowserType, launch_server: Callable[[], RemoteServer]
) -> None:
# Launch another server to not affect other tests.
remote = launch_server()
browser1 = browser_type.connect(remote.ws_endpoint)
browser2 = browser_type.connect(remote.ws_endpoint)
disconnected1 = []
disconnected2 = []
browser1.on("disconnected", lambda browser: disconnected1.append(True))
browser2.on("disconnected", lambda browser: disconnected2.append(True))
page2 = browser2.new_page()
browser1.close()
assert len(disconnected1) == 1
assert len(disconnected2) == 0
remote.kill()
assert len(disconnected1) == 1
with pytest.raises(Error):
# Tickle connection so that it gets a chance to dispatch disconnect event.
page2.title()
assert len(disconnected2) == 1
def test_browser_type_disconnected_event_should_have_browser_as_argument(
browser_type: BrowserType, launch_server: Callable[[], RemoteServer]
) -> None:
remote_server = launch_server()
browser = browser_type.connect(remote_server.ws_endpoint)
event_payloads = []
browser.on("disconnected", lambda b: event_payloads.append(b))
browser.close()
assert event_payloads[0] == browser
def test_browser_type_connect_set_browser_connected_state(
browser_type: BrowserType, launch_server: Callable[[], RemoteServer]
) -> None:
remote_server = launch_server()
browser = browser_type.connect(remote_server.ws_endpoint)
assert browser.is_connected()
browser.close()
assert browser.is_connected() is False
def test_browser_type_connect_should_throw_when_used_after_is_connected_returns_false(
browser_type: BrowserType, launch_server: Callable[[], RemoteServer]
) -> None:
remote_server = launch_server()
browser = browser_type.connect(remote_server.ws_endpoint)
page = browser.new_page()
remote_server.kill()
with pytest.raises(Error) as exc_info:
page.evaluate("1 + 1")
assert "Playwright connection closed" == exc_info.value.message
assert browser.is_connected() is False
def test_browser_type_connect_should_forward_close_events_to_pages(
browser_type: BrowserType, launch_server: Callable[[], RemoteServer]
) -> None:
# Launch another server to not affect other tests.
remote = launch_server()
browser = browser_type.connect(remote.ws_endpoint)
context = browser.new_context()
page = context.new_page()
events = []
browser.on("disconnected", lambda browser: events.append("browser::disconnected"))
context.on("close", lambda context: events.append("context::close"))
page.on("close", lambda page: events.append("page::close"))
browser.close()
assert events == ["page::close", "context::close", "browser::disconnected"]
remote.kill()
assert events == ["page::close", "context::close", "browser::disconnected"]
def test_browser_type_connect_should_forward_close_events_on_remote_kill(
browser_type: BrowserType, launch_server: Callable[[], RemoteServer]
) -> None:
# Launch another server to not affect other tests.
remote = launch_server()
browser = browser_type.connect(remote.ws_endpoint)
context = browser.new_context()
page = context.new_page()
events = []
browser.on("disconnected", lambda context: events.append("browser::disconnected"))
context.on("close", lambda context: events.append("context::close"))
page.on("close", lambda page: events.append("page::close"))
remote.kill()
with pytest.raises(Error):
page.title()
assert events == ["page::close", "context::close", "browser::disconnected"]
def test_connect_to_closed_server_without_hangs(
browser_type: BrowserType, launch_server: Callable[[], RemoteServer]
) -> None:
remote_server = launch_server()
remote_server.kill()
with pytest.raises(Error) as exc:
browser_type.connect(remote_server.ws_endpoint)
assert "websocket.connect: " in exc.value.message