diff --git a/src/testdir/test_vim9_cmd.vim b/src/testdir/test_vim9_cmd.vim
index c21e55a..c276a7e 100644
--- a/src/testdir/test_vim9_cmd.vim
+++ b/src/testdir/test_vim9_cmd.vim
@@ -1056,6 +1056,27 @@
   endif
   assert_notequal(id1, win_getid())
   close
+
+  split
+  var id = win_getid()
+  split
+  :2wincmd o
+  assert_equal(id, win_getid())
+  only
+
+  split
+  split
+  assert_equal(3, winnr('$'))
+  :2wincmd c
+  assert_equal(2, winnr('$'))
+  only
+
+  split
+  split
+  assert_equal(3, winnr('$'))
+  :2wincmd q
+  assert_equal(2, winnr('$'))
+  only
 enddef
 
 def Test_windo_missing_endif()