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-rw-r--r--src/nvim/testdir/test_autocmd.vim13
1 files changed, 13 insertions, 0 deletions
diff --git a/src/nvim/testdir/test_autocmd.vim b/src/nvim/testdir/test_autocmd.vim
index 31ec6a9a33..f41c1983a9 100644
--- a/src/nvim/testdir/test_autocmd.vim
+++ b/src/nvim/testdir/test_autocmd.vim
@@ -550,6 +550,19 @@ func Test_OptionSet()
call assert_equal([['key', 'invalid', 'invalid1', 'invalid']], g:options)
call assert_equal(g:opt[0], g:opt[1])
+ " 18: Setting string option"
+ let oldval = &tags
+ let g:options=[['tags', oldval, 'tagpath', 'global']]
+ set tags=tagpath
+ call assert_equal([], g:options)
+ call assert_equal(g:opt[0], g:opt[1])
+
+ " 1l: Resetting string option"
+ let g:options=[['tags', 'tagpath', oldval, 'global']]
+ set tags&
+ call assert_equal([], g:options)
+ call assert_equal(g:opt[0], g:opt[1])
+
" Cleanup
au! OptionSet
for opt in ['nu', 'ai', 'acd', 'ar', 'bs', 'backup', 'cul', 'cp']