I wanted to setup Laravel Dusk testing to enable me to make screenshots of a website at all different screensizes. To install laravel in an existing repo run:

php artisan dusk:install

to run the 1st test

php artisan dusk

First I am going to create a test for the frontpage to load and then resize to the 4 main sizes which tailwind css uses tailwindcss.com/docs/responsive-design

This is the comprenhsive manual for laravel dusk laravel.com/docs/8.x/dusk

$browser->visit('http://www.londinium.com/')
->waitForText('Londinium');
->assertSee('Londinium'); 

$browser->resize(1920, 1080);
$browser->screenshot('home-1920');

$browser->resize(1280, 720);
$browser->screenshot('home-1280');

$browser->resize(768, 720);
$browser->screenshot('home-768');

$browser->resize(320, 720);
$browser->screenshot('home-320');

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