Playwright · Senior · Question 49 of 77

How do you make screenshot tests stable across machines?

1Allow up to 50% difference in every screenshot test
2Generate and compare baselines in the same Docker image
3Run screenshot tests only on the newest laptop

Show the answer

Correct answer: Generate and compare baselines in the same Docker image

Explanation

Fonts, GPU and OS rendering differ. A shared container with fixed fonts gives the same pixels everywhere.

Further reading

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