This release is a pre-release and may not be stable for production use.
testmuai-playwright-bindings
TestMu binding for Playwright Python — a thin test runtime for running TestMu-exported tests locally or on the LambdaTest grid.
Installation
pip install testmuai-playwright-bindings
Then install the Playwright browsers (one-time):
playwright install
Quick Start
Set credentials (LambdaTest grid) once in your environment:
export LT_USERNAME="your_username"
export LT_ACCESS_KEY="your_access_key"
Then write a test:
import testmu
@testmu.test
async def my_test(page):
async with testmu.step("Open site"):
await page.goto("https://example.com")
async with testmu.step("Verify title"):
await testmu.expect(page).to_have_title("Example Domain")
testmu.run(my_test)
testmu.run() is a synchronous entry point — it sets up the session,
launches the browser, runs your test, and tears everything down.
Configuration
Configuration is sourced from environment variables. See .env.example for the full list. The most common ones:
| Variable | Purpose | Required |
|---|---|---|
LT_USERNAME |
LambdaTest grid username | For cloud features |
LT_ACCESS_KEY |
LambdaTest grid access key | For cloud features |
TESTMU_HEADLESS |
true (default) or false |
No |
TESTMU_SMART |
1 to enable vision/heal AI features |
No |
Test-level metadata (build, name, variables, etc.) can be passed via
testmu.configure(...) at the top of generated test files.
Features
@testmu.test— decorator that wraps async Playwright tests with session lifecycle managementtestmu.step(...)— context manager for structured test stepstestmu.var()/testmu.set_var()— template-based variable resolution (with ATMS lookup when authed)- Helpers —
execute_js,execute_api,execute_db,vision_query,network_query,smartui_snapshot_async, and more - Reporters — local console reporter and TestMu cloud reporter (LambdaTest dashboard)
- Self-healing locators — automatic locator recovery via heal patch (when smart mode enabled)
Requirements
- Python ≥ 3.11
- Playwright ≥ 1.57.0
Links
- PyPI: https://pypi.org/project/testmuai-playwright-bindings/
- TestMu: https://testmu.ai
- LambdaTest grid: https://www.lambdatest.com
- Issues: https://github.com/LambdaTest/testmuai-bindings/issues
License
Released under the MIT License.
1 maintainer
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