CookieCacheContextTest.php

<?php

namespace Drupal\Tests\Core\Cache\Context;

use Drupal\Core\Cache\Context\CookiesCacheContext;
use Drupal\Tests\UnitTestCase;
use Symfony\Component\HttpFoundation\Request;
use Symfony\Component\HttpFoundation\RequestStack;

/**
 * @coversDefaultClass \Drupal\Core\Cache\Context\CookiesCacheContext
 * @group Cache
 */
class CookieCacheContextTest extends UnitTestCase {
    
    /**
     * @covers ::getContext
     *
     * @dataProvider providerTestGetContext
     */
    public function testGetContext($cookies, $cookie_name, $context) {
        $request_stack = new RequestStack();
        $request = Request::create('/', 'GET');
        foreach ($cookies as $cookie => $value) {
            $request->cookies
                ->set($cookie, $value);
        }
        $request_stack->push($request);
        $cache_context = new CookiesCacheContext($request_stack);
        $this->assertSame($cache_context->getContext($cookie_name), $context);
    }
    
    /**
     * Provides a list of cookies and expected cache contexts.
     */
    public function providerTestGetContext() {
        return [
            [
                [
                    'foo' => 1,
                    'bar' => 2,
                    'baz' => 3,
                ],
                'foo',
                1,
            ],
            // Context is ordered by cookie name.
[
                [
                    'foo' => 1,
                    'bar' => 2,
                    'baz' => 3,
                ],
                NULL,
                'bar=2&baz=3&foo=1',
            ],
        ];
    }

}