public function testOpen()
{
$this->assertInstanceOf('Gc\\Media\\Image', $this->object->open($this->directory . 'test.png'));
$this->assertInstanceOf('Gc\\Media\\Image', $this->object->open($this->directory . 'test.jpg'));
$this->assertInstanceOf('Gc\\Media\\Image', $this->object->open($this->directory . 'test.gif'));
$this->assertInstanceOf('Gc\\Media\\Image', $this->object->open($this->directory . 'test.bmp'));
}