HTML API: Fix test assertion and add test case.

[62595] introduced a test assertion for incorrect behavior. Correct the assertion and add another case.

Developed in WordPress#12367.

Props dmsnell.
See #65372. Follow-up to [62595].


git-svn-id: https://develop.svn.wordpress.org/trunk@62598 602fd350-edb4-49c9-b593-d223f7449a82

Author: sirreal

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

@@ -114,7 +114,8 @@ public static function data_has_self_closing_flag() {
 			'Self-closing flag after attribute'          => array( '<div id=test />', true ),
 			'Slash inside unquoted attribute value'      => array( '<div id=test/>', false ),
 			'Slash only unquoted attribute value'        => array( '<div attr=/>', false ),
-			'Attribute "=" with value ""'                => array( '<div =/>', false ),
+			'Attribute "=" with value ""'                => array( '<div =/>', true ),
+			'Attribute "=" with value "/"'               => array( '<div ==/>', false ),
 			'Self-closing flag after quoted attribute'   => array( '<div id="test"/>', true ),
 			'Self-closing flag after boolean attribute'  => array( '<div enabled/>', true ),
 			'Ignored "/" and whitespace'                 => array( '<div / >', false ),