function test_get_media_embedded_in_content() {
    $object = <<<OBJ
<object src="this" data="that">
	<param name="value"/>
</object>
OBJ;
    $embed  = <<<EMBED
<embed src="something.mp4"/>
EMBED;
    $iframe = <<<IFRAME
<iframe src="youtube.com" width="7000" />
IFRAME;
    $audio  = <<<AUDIO
<audio preload="none">
	<source />
</audio>
AUDIO;
    $video  = <<<VIDEO
<video preload="none">
	<source />
</video>
VIDEO;

    $content = <<<CONTENT
This is a comment
$object

This is a comment
$embed

This is a comment
$iframe

This is a comment
$audio

This is a comment
$video

This is a comment
CONTENT;

    $types    = array( 'object', 'embed', 'iframe', 'audio', 'video' );
    $contents = array_values( compact( $types ) );

    $matches = get_media_embedded_in_content( $content, 'audio' );
    $this->assertEquals( array( $audio ), $matches );

    $matches = get_media_embedded_in_content( $content, 'video' );
    $this->assertEquals( array( $video ), $matches );

    $matches = get_media_embedded_in_content( $content, 'object' );
    $this->assertEquals( array( $object ), $matches );

    $matches = get_media_embedded_in_content( $content, 'embed' );
    $this->assertEquals( array( $embed ), $matches );

    $matches = get_media_embedded_in_content( $content, 'iframe' );
    $this->assertEquals( array( $iframe ), $matches );

    $matches = get_media_embedded_in_content( $content, $types );
    $this->assertEquals( $contents, $matches );
  }