2 files changed, 36 insertions, 14 deletions
diff --git a/src/nvim/testdir/test_display.vim b/src/nvim/testdir/test_display.vim
index a177f6140e..66b016c8b2 100644
--- a/src/nvim/testdir/test_display.vim
+++ b/src/nvim/testdir/test_display.vim
@@ -202,6 +202,30 @@ func Test_edit_long_file_name()
   call delete(longName)
 endfunc
 
+func Test_unprintable_fileformats()
+  CheckScreendump
+
+  call writefile(["unix\r", "two"], 'Xunix.txt')
+  call writefile(["mac\r", "two"], 'Xmac.txt')
+  let lines =<< trim END
+    edit Xunix.txt
+    split Xmac.txt
+    edit ++ff=mac
+  END
+  let filename = 'Xunprintable'
+  call writefile(lines, filename)
+  let buf = RunVimInTerminal('-S '.filename, #{rows: 9, cols: 50})
+  call VerifyScreenDump(buf, 'Test_display_unprintable_01', {})
+  call term_sendkeys(buf, "\<C-W>\<C-W>\<C-L>")
+  call VerifyScreenDump(buf, 'Test_display_unprintable_02', {})
+
+  " clean up
+  call StopVimInTerminal(buf)
+  call delete('Xunix.txt')
+  call delete('Xmac.txt')
+  call delete(filename)
+endfunc
+
 " Test for scrolling that modifies buffer during visual block
 func Test_visual_block_scroll()
   " See test/functional/legacy/visual_mode_spec.lua
diff --git a/src/nvim/testdir/test_put.vim b/src/nvim/testdir/test_put.vim
index 884ada7e88..15745d5619 100644
--- a/src/nvim/testdir/test_put.vim
+++ b/src/nvim/testdir/test_put.vim
@@ -22,12 +22,21 @@ endfunc
 
 func Test_put_char_block2()
   new
-  let a = [ getreg('a'), getregtype('a') ]
   call setreg('a', ' one ', 'v')
   call setline(1, ['Line 1', '', 'Line 3', ''])
   " visually select the first 3 lines and put register a over it
   exe "norm! ggl\<c-v>2j2l\"ap"
-  call assert_equal(['L one  1', '', 'L one  3', ''], getline(1,4))
+  call assert_equal(['L one  1', '', 'L one  3', ''], getline(1, 4))
+  " clean up
+  bw!
+endfunc
+
+func Test_put_lines()
+  new
+  let a = [ getreg('a'), getregtype('a') ]
+  call setline(1, ['Line 1', 'Line2', 'Line 3', ''])
+  exe 'norm! gg"add"AddG""p'
+  call assert_equal(['Line 3', '', 'Line 1', 'Line2'], getline(1, '$'))
   " clean up
   bw!
   call setreg('a', a[0], a[1])
@@ -42,21 +51,10 @@ func Test_put_expr()
   exec "4norm! \"=\<cr>P"
   norm! j0.
   norm! j0.
-  call assert_equal(['A1','A2','A3','4A','5A','6A'], getline(1,'$'))
+  call assert_equal(['A1','A2','A3','4A','5A','6A'], getline(1, '$'))
   bw!
 endfunc
 
-func Test_put_lines()
-  new
-  let a = [ getreg('a'), getregtype('a') ]
-  call setline(1, ['Line 1', 'Line2', 'Line 3', ''])
-  exe 'norm! gg"add"AddG""p'
-  call assert_equal(['Line 3', '', 'Line 1', 'Line2'], getline(1,'$'))
-  " clean up
-  bw!
-  call setreg('a', a[0], a[1])
-endfunc
-
 func Test_put_fails_when_nomodifiable()
   new
   setlocal nomodifiable