<?php

namespace App\Tests;

use Symfony\Bundle\FrameworkBundle\Test\KernelTestCase;
use Symfony\Component\Cache\Adapter\FilesystemAdapter;
use Symfony\Component\Cache\Adapter\TagAwareAdapter;

class TagCacheTest extends KernelTestCase
{
    const ITEM = 'item1';
    const TAG = 'tag1';

    public function testInvalidateTags()
    {
        $tagAwareAdapter1 = new TagAwareAdapter(new FilesystemAdapter('', 0));
        $tagAwareAdapter1->clear();

        $cacheItem1 = $tagAwareAdapter1->getItem(self::ITEM);
        $this->assertFalse($cacheItem1->isHit(), 'Item should not have been hit (1)');

        $cacheItem1->tag([self::TAG]);
        $cacheItem1->set('this is the value of [' . self::ITEM . ']');

        $saved = $tagAwareAdapter1->save($cacheItem1);
        $this->assertTrue($saved);

        $cacheItem2 = $tagAwareAdapter1->getItem(self::ITEM);
        $this->assertTrue($cacheItem2->isHit(), 'Item should have been hit');

        $success = $tagAwareAdapter1->invalidateTags([self::TAG]);
        $this->assertTrue($success);

        $cacheItem3 = $tagAwareAdapter1->getItem(self::ITEM);
        $this->assertFalse($cacheItem3->isHit(), 'Item should not have been hit (2)');

        $tagAwareAdapter2 = new TagAwareAdapter(new FilesystemAdapter('', 0));
        $cacheItem4 = $tagAwareAdapter2->getItem(self::ITEM);
        $this->assertFalse($cacheItem4->isHit(), 'Item should not have been hit (3)');
    }
}