From 4748c4bd64610cf943a431d215bb1aad51f8d0b4 Mon Sep 17 00:00:00 2001
From: Bram Moolenaar <Bram@vim.org>
Date: Tue, 17 May 2022 17:47:07 +0100
Subject: patch 8.2.4974: ":so" command may read after end of buffer

Problem:    ":so" command may read after end of buffer.
Solution:   Compute length of text properly.
---
 src/testdir/test_source.vim | 11 +++++++++++
 1 file changed, 11 insertions(+)

(limited to 'src/testdir')

diff --git a/src/testdir/test_source.vim b/src/testdir/test_source.vim
index 5f45ab413..4736e9354 100644
--- a/src/testdir/test_source.vim
+++ b/src/testdir/test_source.vim
@@ -652,6 +652,17 @@ func Test_source_buffer_long_line()
   norm300gr0
   so
   bwipe!
+
+  let lines =<< trim END
+      new
+      norm 10a0000000000ø00000000000
+      norm i0000000000000000000
+      silent! so
+  END
+  call writefile(lines, 'Xtest.vim')
+  source Xtest.vim
+  bwipe!
+  call delete('Xtest.vim')
 endfunc
 
 
-- 
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