public function test_no_gif_image_scripts()
{
$source = '<img src="http://placehold.it/350x150.gif" width="350" height="150" alt="Placeholder!" />';
$expected = array('amp-anim' => 'https://cdn.ampproject.org/v0/amp-anim-0.1.js');
$dom = AMP_DOM_Utils::get_dom_from_content($source);
$sanitizer = new AMP_Img_Sanitizer($dom);
$sanitizer->sanitize();
$scripts = $sanitizer->get_scripts();
$this->assertEquals($expected, $scripts);
}