Add and improve tests

Author: sirreal

tests/phpunit/tests/html-api/wpHtmlTagProcessorModifiableText.php

@@ -504,7 +504,7 @@ public static function data_unallowed_modifiable_text_updates() {
 	 * @param string $update   Update containing possibly-compromising text.
 	 * @param string $expected Expected result.
 	 */
-	public function test_safely_updates_dangerous_javascript_script_tag_contents( string $html, string $update, string $expected ) {
+	public function test_safely_updates_dangerous_JavaScript_script_tag_contents( string $html, string $update, string $expected ) {
 		$processor = new WP_HTML_Tag_Processor( $html );
 		$this->assertTrue( $processor->next_tag( 'SCRIPT' ) );
 		$this->assertTrue( $processor->set_modifiable_text( $update ) );
@@ -519,12 +519,16 @@ public function test_safely_updates_dangerous_javascript_script_tag_contents( st
 	public static function data_script_tag_text_updates(): array {
 		return array(
 			'Simple update'         => array( '<script></script>', '{}', '<script>{}</script>' ),
+			'Needs no replacement'  => array( '<script></script>', '<!--<scriptish>', '<script><!--<scriptish></script>' ),
 			'var script;1<script>0' => array( '<script></script>', 'var script;1<script>0', '<script>var script;1<\u0073cript>0</script>' ),
 			'1</script>/'           => array( '<script></script>', '1</script>/', '<script>1</\u0073cript>/</script>' ),
 			'var SCRIPT;1<SCRIPT>0' => array( '<script></script>', 'var SCRIPT;1<SCRIPT>0', '<script>var SCRIPT;1<\u0053CRIPT>0</script>' ),
 			'1</SCRIPT>/'           => array( '<script></script>', '1</SCRIPT>/', '<script>1</\u0053CRIPT>/</script>' ),
 			'"</script>"'           => array( '<script></script>', '"</script>"', '<script>"</\u0073cript>"</script>' ),
 			'"</ScRiPt>"'           => array( '<script></script>', '"</ScRiPt>"', '<script>"</\u0053cRiPt>"</script>' ),
+			'Module tag'            => array( '<script type="module"></script>', '"<script>"', '<script type="module">"<\u0073cript>"</script>' ),
+			'Tag with type'         => array( '<script type="text/javascript"></script>', '"<script>"', '<script type="text/javascript">"<\u0073cript>"</script>' ),
+			'Tag with language'     => array( '<script language="javascript"></script>', '"<script>"', '<script language="javascript">"<\u0073cript>"</script>' ),
 		);
 	}
 }