1 files changed, 17 insertions, 0 deletions
diff --git a/src/testdir/test_vim9_expr.vim b/src/testdir/test_vim9_expr.vim
index 312d6338c2..a5b6e44d69 100644
--- a/src/testdir/test_vim9_expr.vim
+++ b/src/testdir/test_vim9_expr.vim
@@ -765,6 +765,23 @@ def Test_expr7_not()
   assert_equal(false, ![2])
   assert_equal(true, !!'asdf')
   assert_equal(true, !![2])
+
+  assert_equal(true, !test_null_partial())
+  assert_equal(false, !{-> 'yes'})
+
+  assert_equal(true, !test_null_dict())
+  assert_equal(true, !{})
+  assert_equal(false, !{'yes': 'no'})
+
+  assert_equal(true, !test_null_job())
+  assert_equal(true, !test_null_channel())
+
+  assert_equal(true, !test_null_blob())
+  assert_equal(true, !0z)
+  assert_equal(false, !0z01)
+
+  assert_equal(true, !test_void())
+  assert_equal(true, !test_unknown())
 enddef
 
 func Test_expr7_fails()