snapscreen | Easy snapshot testing with Puppeteer | Testing library

snapscreen is a JavaScript library typically used in Testing applications. snapscreen has no bugs, it has no vulnerabilities and it has low support. You can download it from GitHub.

When you call snapshot(name) it will take a screenshot at that point and store it under ./screenshots/actual, it will compare it to the corresponding file under ./screenshots/expected and return the number of pixels difference. If the difference is non-zero, a ${name}-diff.png file will also be created highlighting the different pixels. The expected/actual folders are automatically created if they don't exist. If there isn't a corresponding expected file (e.g. on first run), it will automatically be created too - i.e. there is zero set up. To force update a screenshot on subsequent runs you can set the environment variable SNAPSHOTS equal to the screenshot name, or set it to true to overwrite all the expected screenshots.