Pytest Plugin for Snapshot Testing with Playwright

This plugin enables snapshot testing in playwright like snapshotting screenshots of pages, element handles etc.

Installation

$ pip install git+https://github.com/kumaraditya303/pytest-playwright-snapshot

Usage

This plugin provides a assert_snapshot fixture which is used to create snapshots and compare it.

Example:

def test_myapp(page, assert_snapshot):
    page.goto("https://example.com")
    assert_snapshot(page.screenshot(), "example.png")

Ths first time you run pytest, you will get error like

Failed: Snapshot not found, use --update-snapshots to create it.

As first you need to create golden snapshots to which this plugin will compare in future.

To create snapshots run:

$ pytest --update-snapshots

This will create snapshots for your tests, after that you can run the tests are usual and this will compare the snapshots.

License

Apache 2.0 LICENSE