From 04bf3a0295799089215504998b46ab9a3e86a3d8 Mon Sep 17 00:00:00 2001
From: Daniel Clark <daniec@microsoft.com>
Date: Thu, 15 Feb 2024 14:08:47 -0800
Subject: [PATCH] [EditContext] Allow backwards range params in updateText

Per https://github.com/w3c/edit-context/pull/90,
EditContext.updateText() should allow the start/end parameters
to be backwards.

Bug: 40642681
Change-Id: Idde01fa7282120e0961eb60a9ccab58061f4062b
---
 .../edit-context/edit-context-basics.tentative.html | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/editing/edit-context/edit-context-basics.tentative.html b/editing/edit-context/edit-context-basics.tentative.html
index 78b6824921a3bb..0011270c812fdd 100644
--- a/editing/edit-context/edit-context-basics.tentative.html
+++ b/editing/edit-context/edit-context-basics.tentative.html
@@ -191,6 +191,19 @@
       assert_equals(editContext.selectionStart, 3);
       assert_equals(editContext.selectionEnd, 0);
     }, 'EditContext should allow a backwards selection');
+
+    test(function() {
+      const editContext = new EditContext();
+      assert_not_equals(editContext, null);
+      editContext.updateText(6, 0, "abcdef");
+      assert_equals(editContext.text, "abcdef");
+
+      editContext.updateText(2, 5, "ghi");
+      assert_equals(editContext.text, "abghif");
+
+      editContext.updateText(5, 2, "jkl");
+      assert_equals(editContext.text, "abjklf");
+    }, 'updateText can replace substrings including with backwards parameters');
   </script>
 </body>
 </html>