/**
* @covers Imbo\Database\MongoDB::deleteMetadata
* @expectedException Imbo\Exception\DatabaseException
* @expectedExceptionMessage Unable to delete meta data
* @expectedExceptionCode 500
*/
public function testThrowsExceptionWhenMongoFailsDuringDeleteMetadata()
{
$this->imageCollection->expects($this->once())->method('findOne')->will($this->throwException(new MongoException()));
$this->driver->deleteMetadata('key', 'identifier');
}