diff --git a/src/testdir/test_popupwin.vim b/src/testdir/test_popupwin.vim
index beb6870..00b956a 100644
--- a/src/testdir/test_popupwin.vim
+++ b/src/testdir/test_popupwin.vim
@@ -3375,12 +3375,22 @@
     call sign_place(3, 'PopUpSelected', 'Other', winbufnr, {'lnum': 1})
     " add sign to popup buffer, does not show
     call sign_place(4, 'Selected', 'Current', winbufnr, {'lnum': 2})
+
+    func SetOptions()
+      call setwinvar(g:winid, '&number', 1)
+      call setwinvar(g:winid, '&foldcolumn', 2)
+      call popup_settext(g:winid, 'a longer line to check the width')
+    endfunc
   END
   call writefile(lines, 'XtestPopupSign')
 
   let buf = RunVimInTerminal('-S XtestPopupSign', #{rows: 10})
   call VerifyScreenDump(buf, 'Test_popupwin_sign_1', {})
 
+  " set more options to check the width is adjusted
+  call term_sendkeys(buf, ":call SetOptions()\<CR>")
+  call VerifyScreenDump(buf, 'Test_popupwin_sign_2', {})
+
   call StopVimInTerminal(buf)
   call delete('XtestPopupSign')
 endfunc