public function testUpdateDeleteAndGetMetadata()
{
$user = 'user';
$imageIdentifier = 'id';
$this->assertTrue($this->adapter->insertImage($user, $imageIdentifier, $this->getImage()));
$this->assertTrue($this->adapter->updateMetadata($user, $imageIdentifier, ['foo' => 'bar']));
$this->assertSame(['foo' => 'bar'], $this->adapter->getMetadata($user, $imageIdentifier));
$this->assertTrue($this->adapter->deleteMetadata($user, $imageIdentifier));
$this->assertSame([], $this->adapter->getMetadata($user, $imageIdentifier));
}