[at-spi2-core: 39/47] Test that the registry's root has a null parent

[Federico Mena Quintero <federico src gnome org>]

commit 1c1d915596f5700a08efb6e5906a4ccfa0ddb932
Author: Federico Mena Quintero <federico gnome org>
Date:   Tue Jul 12 12:41:44 2022 -0500

    Test that the registry's root has a null parent

 tests/registryd/test_registry_startup.py | 3 +++
 1 file changed, 3 insertions(+)
---
diff --git a/tests/registryd/test_registry_startup.py b/tests/registryd/test_registry_startup.py
index 9692953b..ee00c4b9 100644
--- a/tests/registryd/test_registry_startup.py
+++ b/tests/registryd/test_registry_startup.py
@@ -19,5 +19,8 @@ def test_accessible_iface_properties(registry, session_manager):
     for prop_name, expected in values:
         assert get_property(registry, ACCESSIBLE_IFACE, prop_name) == expected
 
+def test_registry_root_has_null_parent(registry, session_manager):
+    assert get_property(registry, ACCESSIBLE_IFACE, 'Parent') == ('', '/org/a11y/atspi/null')
+
 def test_empty_registry_has_zero_children(registry, session_manager):
     assert get_property(registry, ACCESSIBLE_IFACE, 'ChildCount') == 0