From 594367d6d8b76aa7fe7f536cc1b604f89940e081 Mon Sep 17 00:00:00 2001
From: Humza Shahid <humzasaur@gmail.com>
Date: Thu, 25 Sep 2025 10:02:16 +0100
Subject: [PATCH] add another failing unit test for 'dk' motion

---
 temp.txt               |  1 +
 test/normal-delete.sml | 32 ++++++++++++++++++++++++++++++++
 2 files changed, 33 insertions(+)

diff --git a/temp.txt b/temp.txt
index 7bd861d..204e3fd 100644
--- a/temp.txt
+++ b/temp.txt
@@ -1,4 +1,5 @@
 hello
 world
+
 trello
 brillo
diff --git a/test/normal-delete.sml b/test/normal-delete.sml
index b4f3018..9dcd849 100644
--- a/test/normal-delete.sml
+++ b/test/normal-delete.sml
@@ -730,6 +730,38 @@ struct
              Expect.isTrue
                (expectedString = actualString andalso expectedIdx = cursorIdx)
            end)
+    , test
+        "deletes just newline and line above when cursor is on third line"
+        (fn _ =>
+           let
+             (* arrange *)
+             val originalString = "hello\n\nagain\n"
+             val originalString =
+               "hello\n\
+               \world\n\
+               \\n\
+               \trello\n\
+               \brillo\n"
+             val originalIdx = 12
+
+             val app = TestUtils.init originalString
+             val app = AppWith.idx (app, originalIdx)
+
+             (* act *)
+             val {buffer, cursorIdx, ...} = TestUtils.updateMany (app, "dk")
+
+             (* assert *)
+             val expectedString =
+               "hello\n\
+               \trello\n\
+               \brillo\n"
+             val actualString = LineGap.toString buffer
+
+             val expectedIdx = 6
+           in
+             Expect.isTrue
+               (expectedString = actualString andalso expectedIdx = cursorIdx)
+           end)
     ]
 
   val tests = [dhDelete, dlDelete, djDelete, ddDelete, dkDelete]