diff --git a/unittest.vim b/unittest.vim
index 9a7a51f..ec0070d 100644
--- a/unittest.vim
+++ b/unittest.vim
@@ -563,6 +563,30 @@ finish
       'type': "html",
       'result': "<div class=\"boxes\">\n\t<div class=\"box2\">\n\t\t<section>\n\t\t\t<h2>a</h2>\n\t\t\t<p>b</p>\n\t\t</section>\n\t</div>\n\t<div class=\"box1\">\n\t\t<section>\n\t\t\t<h2>c</h2>\n\t\t\t<p>d</p>\n\t\t\t<p>e</p>\n\t\t\t<blockquote>\n\t\t\t\t<h2>f</h2>\n\t\t\t\t<h3>g</h3>\n\t\t\t</blockquote>\n\t\t\t<p>h</p>\n\t\t</section>\n\t</div>\n</div>\n",
     },
+    {
+      'name': "join tag",
+      'query': "<div>\n\t<span>$$$$\\<c-y>j$$$$</span>\n</div>",
+      'type': "html",
+      'result': "<div>\n\t<span/>\n</div>",
+    },
+    {
+      'name': "split tag",
+      'query': "<div>\n\t<span$$$$\\<c-y>j$$$$/>\n</div>",
+      'type': "html",
+      'result': "<div>\n\t<span></span>\n</div>",
+    },
+    {
+      'name': "comment tag",
+      'query': "<div>\n\t<span>$$$$\\<c-y>/$$$$</span>\n</div>",
+      'type': "html",
+      'result': "<div>\n\t<!-- <span></span> -->\n</div>",
+    },
+    {
+      'name': "uncomment tag",
+      'query': "<div>\n\t<!-- <span>$$$$\\<c-y>/$$$$</span> -->\n</div>",
+      'type': "html",
+      'result': "<div>\n\t<span></span>\n</div>",
+    },
   ],
 },
 {