class FileCacheTest

class FileCacheTest extends TestCase {
    
    /**
     * FileCache object used for the tests.
     *
     * @var \Drupal\Component\FileCache\FileCacheInterface
     */
    protected $fileCache;
    
    /**
     * Static FileCache object used for verification of tests.
     *
     * @var \Drupal\Component\FileCache\FileCacheBackendInterface
     */
    protected $staticFileCache;
    
    /**
     * {@inheritdoc}
     */
    protected function setUp() {
        parent::setUp();
        $this->fileCache = new FileCache('prefix', 'test', '\\Drupal\\Tests\\Component\\FileCache\\StaticFileCacheBackend', [
            'bin' => 'llama',
        ]);
        $this->staticFileCache = new StaticFileCacheBackend([
            'bin' => 'llama',
        ]);
    }
    
    /**
     * @covers ::get
     * @covers ::__construct
     */
    public function testGet() {
        // Test a cache miss.
        $result = $this->fileCache
            ->get(__DIR__ . '/Fixtures/no-llama-42.yml');
        $this->assertNull($result);
        // Test a cache hit.
        $filename = __DIR__ . '/Fixtures/llama-42.txt';
        $realpath = realpath($filename);
        $cid = 'prefix:test:' . $realpath;
        $data = [
            'mtime' => filemtime($realpath),
            'filepath' => $realpath,
            'data' => 42,
        ];
        $this->staticFileCache
            ->store($cid, $data);
        $result = $this->fileCache
            ->get($filename);
        $this->assertEquals(42, $result);
        // Cleanup static caches.
        $this->fileCache
            ->delete($filename);
    }
    
    /**
     * @covers ::getMultiple
     */
    public function testGetMultiple() {
        // Test a cache miss.
        $result = $this->fileCache
            ->getMultiple([
            __DIR__ . '/Fixtures/no-llama-42.yml',
        ]);
        $this->assertEmpty($result);
        // Test a cache hit.
        $filename = __DIR__ . '/Fixtures/llama-42.txt';
        $realpath = realpath($filename);
        $cid = 'prefix:test:' . $realpath;
        $data = [
            'mtime' => filemtime($realpath),
            'filepath' => $realpath,
            'data' => 42,
        ];
        $this->staticFileCache
            ->store($cid, $data);
        $result = $this->fileCache
            ->getMultiple([
            $filename,
        ]);
        $this->assertEquals([
            $filename => 42,
        ], $result);
        // Test a static cache hit.
        $file2 = __DIR__ . '/Fixtures/llama-23.txt';
        $this->fileCache
            ->set($file2, 23);
        $result = $this->fileCache
            ->getMultiple([
            $filename,
            $file2,
        ]);
        $this->assertEquals([
            $filename => 42,
            $file2 => 23,
        ], $result);
        // Cleanup static caches.
        $this->fileCache
            ->delete($filename);
        $this->fileCache
            ->delete($file2);
    }
    
    /**
     * @covers ::set
     */
    public function testSet() {
        $filename = __DIR__ . '/Fixtures/llama-23.txt';
        $realpath = realpath($filename);
        $cid = 'prefix:test:' . $realpath;
        $data = [
            'mtime' => filemtime($realpath),
            'filepath' => $realpath,
            'data' => 23,
        ];
        $this->fileCache
            ->set($filename, 23);
        $result = $this->staticFileCache
            ->fetch([
            $cid,
        ]);
        $this->assertEquals([
            $cid => $data,
        ], $result);
        // Cleanup static caches.
        $this->fileCache
            ->delete($filename);
    }
    
    /**
     * @covers ::delete
     */
    public function testDelete() {
        $filename = __DIR__ . '/Fixtures/llama-23.txt';
        $realpath = realpath($filename);
        $cid = 'prefix:test:' . $realpath;
        $this->fileCache
            ->set($filename, 23);
        // Ensure data is removed after deletion.
        $this->fileCache
            ->delete($filename);
        $result = $this->staticFileCache
            ->fetch([
            $cid,
        ]);
        $this->assertEquals([], $result);
        $result = $this->fileCache
            ->get($filename);
        $this->assertNull($result);
    }

}