Laravel.io
LoginTest.php
<?php

namespace Tests\Browser;

use Illuminate\Foundation\Testing\DatabaseMigrations;
use Tests\DuskTestCase;
use Laravel\Dusk\Browser;

class LoginTest extends DuskTestCase
{
    use DatabaseMigrations;

    protected $user;

    /**
     * Init user
     *
     * @return void
     */
    public function getUser()
    {
        if ($this->user) {
            return;
        }

        $this->user = factory(\App\Models\User::class)->create([
            'email' => '[email protected]',
        ]);
    }

    /**
     * Test user login with error
     *
     * @return void
     */
    public function testAUserReceivesErrorsForWrongLoginCredentials()
    {
        $this->getUser();

        $this->browse(function(Browser $browser) {
            $browser->visit(route('login'))
                ->type('email', $this->user->email)
                ->type('password', 'wrongPassword')
                ->click('button[type=submit]')
                ->pause(5000)
                ->assertVisible('.notification.is-danger');
        });
    }

    /**
     * Test user login
     *
     * @return void
     */
    public function testUserCanSuccessfullyLogIn()
    {
        $this->getUser();

        $this->browse(function (Browser $browser) {
            $browser->visit(route('login'))
                ->type('email', $this->user->email)
                ->type('password', 'secret')
                ->click('button[type=submit]')
                ->pause(5000)
                ->assertRouteIs('profile', $this->user->username);
        });
    }
}


.env.dusk.local
APP_ENV=local
APP_KEY=RANDOM_STRING
APP_DEBUG=true
APP_LOG_LEVEL=debug
APP_URL=http://site.dev

DB_CONNECTION=testing

database.php
        'testing' => [
            'driver' => 'sqlite',
            'database' => storage_path('testing.sqlite'),
            'prefix' => '',
        ],

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