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Example code of cetera-labs/laravel-dusk-visual-assert

Informations about the package laravel-dusk-visual-assert

Laravel Dusk Visual Assert

This package adds assertions to compare screenshots taken during Laravel Dusk tests using the Imagick extension.

Installation

You can install the package via composer:

Configuration

Publish the config file to control default settings:

Usage

The Dusk Browser class now has access to some new methods:

assertScreenshot()

This method will take a screenshot of the current page and compare it to a reference image (generated the first time the test is run).

If the images are different, the test will fail and save the image diff so you can inspect the differences.

Example:

assertResponsiveScreenshots()

This method is similar to the assertScreenshot as above but it screenshots the page at different screen sizes.

Example:

Updating reference images

If you want to update the reference images simply delete them from the tests/Browser/screenshots/references directory and re-run your tests to generate new ones.

I would recommend committing the reference images to your repository so you can track changes to them over time.

Caveats

When comparing images, the package will expect the screenshots to be the same width and height as the reference images.

If the Dusk environment has changed (headless-mode, window size, etc) then the comparison screenshots could be different sizes and the assertion will fail.

You can change the skip_if_different_window_size config option to overcome this if you need to use a different Dusk environment temporarily.

All versions of laravel-dusk-visual-assert with dependencies

PHP Build Version
Package Version
Requires laravel/dusk Version ^7|^8
ext-imagick Version *
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