function test_assets_version()
{
// should always return original value if unset
$this->assertEquals('', Page::assets_version());
$this->assertEquals('...', Page::assets_version('...'));
$this->assertEquals('http://www.google.com/', Page::assets_version('http://www.google.com/'));
// should add ?v=123 to these
Page::$assets_version = '123';
$this->assertEquals('?v=123', Page::assets_version());
$this->assertEquals('/js/urlify.js?v=123', Page::assets_version('/js/urlify.js'));
$this->assertEquals('/css/style.css?v=123', Page::assets_version('/css/style.css'));
// should not add ?v=123 to these
$this->assertEquals('<script src="/js/urlify.js"></script>', Page::assets_version('<script src="/js/urlify.js"></script>'));
$this->assertEquals('<link rel="stylesheet" href="style.css" />', Page::assets_version('<link rel="stylesheet" href="style.css" />'));
$this->assertEquals('http://www.google.com/script.js', Page::assets_version('http://www.google.com/script.js'));
$this->assertEquals('//www.google.com/script.js', Page::assets_version('//www.google.com/script.js'));
}
