app/tests/Browser/Auth/LoginTest.php

<?php

namespace Tests\Browser\Auth;

use Laravel\Dusk\Browser;
use Tests\DuskTestCase;
use App\Models\Planner;
use Illuminate\Support\Facades\Hash;

class LoginTest extends DuskTestCase
{
    protected static $testPlanner = null;
    protected static $testEmail = null;
    protected static $testPassword = 'password';

    protected function ensureTestPlannerExists(): void
    {
        if (self::$testPlanner === null) {
            // Generate unique email for this test run
            self::$testEmail = fake()->unique()->safeEmail();

            self::$testPlanner = Planner::factory()->create([
                'email' => self::$testEmail,
                'password' => Hash::make(self::$testPassword),
            ]);
        }
    }

    public function testSuccessfulLogin(): void
    {
        $this->ensureTestPlannerExists();

        $this->browse(function (Browser $browser) {
            $browser->driver->manage()->deleteAllCookies();
            $browser->visit('http://dishplanner_app:8000/login')
                    ->waitFor('input[id="email"]', self::TIMEOUT_SHORT)
                    ->clear('input[id="email"]')
                    ->type('input[id="email"]', self::$testEmail)
                    ->clear('input[id="password"]')
                    ->type('input[id="password"]', self::$testPassword)
                    ->press('Login')
                    ->waitForLocation('/dashboard', self::TIMEOUT_MEDIUM)
                    ->assertPathIs('/dashboard');
        });
    }

    public function testLoginWithWrongCredentials(): void
    {
        $this->ensureTestPlannerExists();

        $this->browse(function (Browser $browser) {
            $browser->driver->manage()->deleteAllCookies();
            $browser->visit('http://dishplanner_app:8000/login')
                    ->waitFor('input[id="email"]', self::TIMEOUT_SHORT)
                    ->clear('input[id="email"]')
                    ->type('input[id="email"]', self::$testEmail)
                    ->clear('input[id="password"]')
                    ->type('input[id="password"]', 'wrongpassword')
                    ->press('Login')
                    ->pause(self::PAUSE_MEDIUM)
                    ->assertPathIs('/login')
                    ->assertSee('These credentials do not match our records');
        });
    }

    public function testLoginFormRequiredFields(): void
    {
        $this->browse(function (Browser $browser) {
            $browser->driver->manage()->deleteAllCookies();
            $browser->visit('http://dishplanner_app:8000/login')
                    ->waitFor('input[id="email"]', self::TIMEOUT_SHORT);

            // Check that both fields have the required attribute
            $browser->assertAttribute('input[id="email"]', 'required', 'true');
            $browser->assertAttribute('input[id="password"]', 'required', 'true');

            // Verify email field is type email
            $browser->assertAttribute('input[id="email"]', 'type', 'email');

            // Verify password field is type password
            $browser->assertAttribute('input[id="password"]', 'type', 'password');

            // Test that we stay on login page if we try to submit with empty fields
            $browser->press('Login')
                    ->pause(self::PAUSE_SHORT)
                    ->assertPathIs('/login');
        });
    }
}