Playwright tests failing to launch due to internal assertion error in Node.js

Why this is a good first issue

Playwright tests failing with undefined property error during cleanup

AI Summary

The issue involves Playwright tests failing during cleanup with an undefined property error. The maintainer suggests it might be related to Electron version mismatch. The problem appears reproducible but requires investigation into test environment setup and potential version conflicts.

Issue Description

Version

V22.14.0

Platform

Darwin mac.lan 25.3.0 Darwin Kernel Version 25.3.0: Wed Jan 28 20:53:31 PST 2026; root:xnu-12377.81.4~5/RELEASE_ARM64_T8122 arm64

Subsystem

No response

What steps will reproduce the bug?

running npx playwright test --config=playwright.config.js

How often does it reproduce? Is there a required condition?

it happens for each playwright test everytime I try to run my playwrights tests

What is the expected behavior? Why is that the expected behavior?

The tests should run.

What do you see instead?

mark@mac lumen-desktop % npx playwright test --config=playwright.config.ts

Running 110 tests using 1 worker
[chromium] › tests/app.spec.ts:31:1 › Main window state
Error in afterAll cleanup: TypeError: Cannot read properties of undefined (reading 'firstWindow')
    at Module.tearDownTestEnv (file:///Users/mark/WebstormProjects/lumen/client/lumen-desktop/tests/test-environment-helpers.ts:54:25)
    at file:///Users/mark/WebstormProjects/lumen/client/lumen-desktop/tests/app.spec.ts:21:22
    at /Users/mark/WebstormProjects/lumen/client/lumen-desktop/node_modules/@playwright/test/node_modules/playwright/lib/worker/fixtureRunner.js:232:52
    at /Users/mark/WebstormProjects/lumen/client/lumen-desktop/node_modules/@playwright/test/node_modules/playwright/lib/worker/testInfo.js:320:17
    at TimeoutManager.withRunnable (/Users/mark/WebstormProjects/lumen/client/lumen-desktop/node_modules/@playwright/test/node_modules/playwright/lib/worker/timeoutManager.js:68:9)
    at TestInfoImpl._runWithTimeout (/Users/mark/WebstormProjects/lumen/client/lumen-desktop/node_modules/@playwright/test/node_modules/playwright/lib/worker/testInfo.js:318:34)
    at FixtureRunner.resolveParametersAndRunFunction (/Users/mark/WebstormProjects/lumen/client/lumen-desktop/node_modules/@playwright/test/node_modules/playwright/lib/worker/fixtureRunner.js:232:20)
    at /Users/mark/WebstormProjects/lumen/client/lumen-desktop/nod