1 files changed, 37 insertions, 1 deletions
diff --git a/src/nvim/testdir/test_diffmode.vim b/src/nvim/testdir/test_diffmode.vim
index 1ade11a8ed..8592f48af7 100644
--- a/src/nvim/testdir/test_diffmode.vim
+++ b/src/nvim/testdir/test_diffmode.vim
@@ -802,6 +802,7 @@ func VerifyBoth(buf, dumpfile, extra)
 
   " also test unified diff
   call term_sendkeys(a:buf, ":call SetupUnified()\<CR>:")
+  call term_sendkeys(a:buf, ":redraw!\<CR>:")
   call VerifyScreenDump(a:buf, a:dumpfile, {}, 'unified')
   call term_sendkeys(a:buf, ":call StopUnified()\<CR>:")
 endfunc
@@ -823,10 +824,11 @@ func Test_diff_screen()
       func UnifiedDiffExpr()
         " Prepend some text to check diff type detection
         call writefile(['warning', '  message'], v:fname_out)
-        silent exe '!diff -u ' .. v:fname_in .. ' ' .. v:fname_new .. '>>' .. v:fname_out
+        silent exe '!diff -U0 ' .. v:fname_in .. ' ' .. v:fname_new .. '>>' .. v:fname_out
       endfunc
       func SetupUnified()
         set diffexpr=UnifiedDiffExpr()
+        diffupdate
       endfunc
       func StopUnified()
         set diffexpr=
@@ -1146,4 +1148,38 @@ func Test_diff_and_scroll()
   set ls&
 endfunc
 
+func Test_diff_filler_cursorcolumn()
+  CheckScreendump
+
+  let content =<< trim END
+    call setline(1, ['aa', 'bb', 'cc'])
+    vnew
+    call setline(1, ['aa', 'cc'])
+    windo diffthis
+    wincmd p
+    setlocal cursorcolumn foldcolumn=0
+    norm! gg0
+    redraw!
+  END
+  call writefile(content, 'Xtest_diff_cuc')
+  let buf = RunVimInTerminal('-S Xtest_diff_cuc', {})
+
+  call VerifyScreenDump(buf, 'Test_diff_cuc_01', {})
+
+  call term_sendkeys(buf, "l")
+  call term_sendkeys(buf, "\<C-l>")
+  call VerifyScreenDump(buf, 'Test_diff_cuc_02', {})
+  call term_sendkeys(buf, "0j")
+  call term_sendkeys(buf, "\<C-l>")
+  call VerifyScreenDump(buf, 'Test_diff_cuc_03', {})
+  call term_sendkeys(buf, "l")
+  call term_sendkeys(buf, "\<C-l>")
+  call VerifyScreenDump(buf, 'Test_diff_cuc_04', {})
+
+  " clean up
+  call StopVimInTerminal(buf)
+  call delete('Xtest_diff_cuc')
+endfunc
+
+
 " vim: shiftwidth=2 sts=2 expandtab