How to use test_should_send_well_formed_touch_points method in Playwright Python

Best Python code snippet using playwright-python

test_tap.py

Source:test_tap.py Github

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...99 await asyncio.sleep(0) # make sure the evals hit the page100 await page.evaluate("""() => void 0""")101 await page.tap("body", modifiers=["Alt"])102 assert await alt_key_promise is True103async def test_should_send_well_formed_touch_points(page):104 promises = asyncio.gather(105 page.evaluate(106 """() => new Promise(resolve => {107 document.addEventListener('touchstart', event => {108 resolve([...event.touches].map(t => ({109 identifier: t.identifier,110 clientX: t.clientX,111 clientY: t.clientY,112 pageX: t.pageX,113 pageY: t.pageY,114 radiusX: 'radiusX' in t ? t.radiusX : t['webkitRadiusX'],115 radiusY: 'radiusY' in t ? t.radiusY : t['webkitRadiusY'],116 rotationAngle: 'rotationAngle' in t ? t.rotationAngle : t['webkitRotationAngle'],117 force: 'force' in t ? t.force : t['webkitForce'],...

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Heroku's filesystem is both ephemeral and dyno-local. Any changes made to it are lost when the dyno restarts. More importantly at the moment, when you run something like heroku run bash you don't connect to a running dyno. Instead, you get a separate one-off dyno.

Installing Chromium (or making any other filesystem changes) in such an environment will never affect what is available in your other dynos.

It looks like Playwright really wants to manage its own browser binaries. Your best bet might be to run playwright install near the beginning of your script, e.g. something like this:

import subprocess
from playwright.sync_api import sync_playwright

subprocess.run(["playwright", "install"])

with sync_playwright() as playwright:
    # ...

This should make sure that the required binaries are always available at runtime.

https://stackoverflow.com/questions/73071242/problem-installing-playwright-chrome-on-heroku-using-python

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