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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 asyncio
from contextlib import contextmanager
from pathlib import Path
from typing import Any, Callable, Dict, Generator, List
import pytest
from greenlet import greenlet
from playwright._impl._driver import compute_driver_executable
from playwright.sync_api import (
Browser,
BrowserContext,
BrowserType,
FrameLocator,
Locator,
Page,
Playwright,
Selectors,
sync_playwright,
)
from tests.server import HTTPServer
from .utils import Utils
from .utils import utils as utils_object
@pytest.fixture
def utils() -> Generator[Utils, None, None]:
yield utils_object
@pytest.fixture(scope="session")
def playwright() -> Generator[Playwright, None, None]:
with sync_playwright() as p:
yield p
@pytest.fixture(scope="session")
def browser_type(
playwright: Playwright, browser_name: str
) -> Generator[BrowserType, None, None]:
browser_type = None
if browser_name == "chromium":
browser_type = playwright.chromium
elif browser_name == "firefox":
browser_type = playwright.firefox
elif browser_name == "webkit":
browser_type = playwright.webkit
assert browser_type, f"Unkown browser name '{browser_name}'"
yield browser_type
@pytest.fixture(scope="session")
def browser(
browser_type: BrowserType, launch_arguments: Dict
) -> Generator[Browser, None, None]:
browser = browser_type.launch(**launch_arguments)
yield browser
browser.close()
@pytest.fixture
def context(browser: Browser) -> Generator[BrowserContext, None, None]:
context = browser.new_context()
yield context
context.close()
@pytest.fixture
def page(context: BrowserContext) -> Generator[Page, None, None]:
page = context.new_page()
yield page
page.close()
@pytest.fixture(scope="session")
def selectors(playwright: Playwright) -> Selectors:
return playwright.selectors
@pytest.fixture(scope="session")
def sync_gather(playwright: Playwright) -> Generator[Callable, None, None]:
def _sync_gather_impl(*actions: Callable) -> List[Any]:
g_self = greenlet.getcurrent()
results: Dict[Callable, Any] = {}
exceptions: List[Exception] = []
def action_wrapper(action: Callable) -> Callable:
def body() -> Any:
try:
results[action] = action()
except Exception as e:
results[action] = e
exceptions.append(e)
g_self.switch()
return body
async def task() -> None:
for action in actions:
g = greenlet(action_wrapper(action))
g.switch()
asyncio.create_task(task())
while len(results) < len(actions):
playwright._dispatcher_fiber.switch()
if exceptions:
raise exceptions[0]
return list(map(lambda action: results[action], actions))
yield _sync_gather_impl
class TraceViewerPage:
def __init__(self, page: Page):
self.page = page
@property
def actions_tree(self) -> Locator:
return self.page.get_by_test_id("actions-tree")
@property
def action_titles(self) -> Locator:
return self.page.locator(".action-title")
@property
def stack_frames(self) -> Locator:
return self.page.get_by_role("list", name="Stack trace").get_by_role("listitem")
def select_action(self, title: str, ordinal: int = 0) -> None:
self.page.locator(".action-title", has_text=title).nth(ordinal).click()
def select_snapshot(self, name: str) -> None:
self.page.click(f'.snapshot-tab .tabbed-pane-tab-label:has-text("{name}")')
def snapshot_frame(
self, action_name: str, ordinal: int = 0, has_subframe: bool = False
) -> FrameLocator:
self.select_action(action_name, ordinal)
expected_frames = 4 if has_subframe else 3
while len(self.page.frames) < expected_frames:
self.page.wait_for_event("frameattached")
return self.page.frame_locator("iframe.snapshot-visible[name=snapshot]")
def show_source_tab(self) -> None:
self.page.click("text='Source'")
def expand_action(self, title: str, ordinal: int = 0) -> None:
self.actions_tree.locator(".tree-view-entry", has_text=title).nth(
ordinal
).locator(".codicon-chevron-right").click()
@pytest.fixture
def show_trace_viewer(browser: Browser) -> Generator[Callable, None, None]:
"""Fixture that provides a function to show trace viewer for a trace file."""
@contextmanager
def _show_trace_viewer(
trace_path: Path,
) -> Generator[TraceViewerPage, None, None]:
trace_viewer_path = (
Path(compute_driver_executable()[0]) / "../package/lib/vite/traceViewer"
).resolve()
server = HTTPServer()
server.start(trace_viewer_path)
server.set_route("/trace.zip", lambda request: request.serve_file(trace_path))
page = browser.new_page()
try:
page.goto(f"{server.PREFIX}/index.html?trace={server.PREFIX}/trace.zip")
yield TraceViewerPage(page)
finally:
page.close()
server.stop()
yield _show_trace_viewer
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