Adjust the RegEx in wp_check_filetype() to be aware that query strings are thing that exist sometimes in URLs.

Adds unit tests.

Props voldemortensen.
Fixes #30377.


git-svn-id: https://develop.svn.wordpress.org/trunk@30640 602fd350-edb4-49c9-b593-d223f7449a82

tests/phpunit/tests/media.php

@@ -467,4 +467,13 @@ VIDEO;
 		return $dir;
 	}
 
+	function test_wp_check_filetype() {
+		$url = 'http://example.com/testFile.mp4?autoplay=true&otherstuff=false';
+		$filetype = wp_check_filetype( $url );
+		$expected = array(
+			'ext'  => 'mp4',
+			'type' => 'video/mp4'
+		);
+		$this->assertEquals( $expected, $filetype );
+	}
 }