patch 8.1.1519: 'backupskip' may contain duplicates
Problem: 'backupskip' may contain duplicates.
Solution: Add the P_NODUP flag. (Tom Ryder)
diff --git a/src/testdir/test_options.vim b/src/testdir/test_options.vim
index 13de719..9d3065d 100644
--- a/src/testdir/test_options.vim
+++ b/src/testdir/test_options.vim
@@ -419,6 +419,15 @@
call assert_true(found, var . ' (' . varvalue . ') not in option bsk: ' . &bsk)
endif
endfor
+
+ " Duplicates should be filtered out (option has P_NODUP)
+ let backupskip = &backupskip
+ set backupskip=
+ set backupskip+=/test/dir
+ set backupskip+=/other/dir
+ set backupskip+=/test/dir
+ call assert_equal('/test/dir,/other/dir', &backupskip)
+ let &backupskip = backupskip
endfunc
func Test_copy_winopt()