1 files changed, 55 insertions, 0 deletions
diff --git a/editor/libeditor/tests/test_cmd_paragraphState.html b/editor/libeditor/tests/test_cmd_paragraphState.html
new file mode 100644
index 0000000000..9b13fc32bf
--- /dev/null
+++ b/editor/libeditor/tests/test_cmd_paragraphState.html
@@ -0,0 +1,55 @@
+<!doctype html>
+<html>
+<head>
+<meta charset="utf-8">
+<title>Testing "cmd_paragraphState" behavior</title>
+<script src="/tests/SimpleTest/SimpleTest.js"></script>
+<link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
+</head>
+<body>
+<div contenteditable></div>
+<script>
+"use strict";
+
+SimpleTest.waitForExplicitFinish();
+SimpleTest.waitForFocus(() => {
+  const editor = document.querySelector("div[contenteditable]");
+
+  editor.innerHTML = "<div><p>abc</p></div>";
+  editor.focus();
+  getSelection().collapse(editor.querySelector("p").firstChild, 1);
+  editor.getBoundingClientRect();
+  SpecialPowers.doCommand(window, "cmd_paragraphState", "");
+  is(
+    editor.innerHTML,
+    "<div>abc</div>",
+    "cmd_paragraphState with empty string should remove the parent block element"
+  );
+
+  editor.innerHTML = "<div><div contenteditable=\"false\"><p contenteditable>abc</p></div></div>";
+  editor.focus();
+  getSelection().collapse(editor.querySelector("p").firstChild, 1);
+  editor.getBoundingClientRect();
+  SpecialPowers.doCommand(window, "cmd_paragraphState", "");
+  is(
+    editor.innerHTML,
+    "<div><div contenteditable=\"false\"><p contenteditable=\"\">abc</p></div></div>",
+    "cmd_paragraphState with empty string should not remove editing host"
+  );
+
+  editor.innerHTML = "<div><div contenteditable=\"false\"><p><span contenteditable>abc</span></p></div></div>";
+  editor.focus();
+  getSelection().collapse(editor.querySelector("span").firstChild, 1);
+  editor.getBoundingClientRect();
+  SpecialPowers.doCommand(window, "cmd_paragraphState", "");
+  is(
+    editor.innerHTML,
+    "<div><div contenteditable=\"false\"><p><span contenteditable=\"\">abc</span></p></div></div>",
+    "cmd_paragraphState with empty string should not remove parents of inline editing host"
+  );
+
+  SimpleTest.finish();
+});
+</script>
+</body>
+</html>