test: Add test case.

__tests__/index.test.ts

@@ -4,6 +4,7 @@ const unified = require("unified");
 const stringify = require('rehype-stringify')
 const rehypeRaw = require('rehype-raw')
 const remarkParse = require('remark-parse')
+const gfm = require('remark-gfm')
 const remark2rehype = require('remark-rehype')
 const rehypeAttrs = require('../lib')
 
@@ -148,6 +149,27 @@ describe('rehype-attr test case', () => {
         .toString()
         expect(htmlStr).toEqual(data.expected);
     });
+  });
+
+  [
+    {
+      title: 'options="attr" - Delete <del> `~~Text~~`',
+      markdown: 'This is a ~~title~~<!--rehype:style=color:pink;-->',
+      expected: '<p>This is a <del style="color:pink;">title</del><!--rehype:style=color:pink;--></p>',
+    }
+  ].forEach((data, idx) => {
+    it(data.title, async () => {
+      const htmlStr = unified()
+        .use(remarkParse)
+        .use(gfm)
+        .use(remark2rehype, { allowDangerousHtml: true })
+        .use(rehypeRaw)
+        .use(rehypeAttrs, { properties: 'attr' })
+        .use(stringify)
+        .processSync(data.markdown)
+        .toString()
+        expect(htmlStr).toEqual(data.expected);
+    });
   })
 
 });

package.json

@@ -48,6 +48,7 @@
     "rehype": "11.0.0",
     "rehype-raw": "5.1.0",
     "rehype-stringify": "8.0.0",
+    "remark-gfm": "^1.0.0",
     "remark-parse": "9.0.0",
     "remark-rehype": "8.1.0",
     "tsbb": "2.1.2"