[1.11.x] Fixed #27905 – Added RelatedFieldWidgetWrapper.value_omitted_from_data().

Backport of fd75c8f2b7070774f6e90f408cb5cddf65b8734e from master

1 files changed, 9 insertions, 0 deletions

diff --git a/tests/admin_widgets/tests.py b/tests/admin_widgets/tests.py
index 8c05fa4331..f9c6d6a614 100644
--- a/tests/admin_widgets/tests.py
+++ b/tests/admin_widgets/tests.py
@@ -649,6 +649,15 @@ class RelatedFieldWidgetWrapperTests(SimpleTestCase):
         output = wrapper.render('name', 'value')
         self.assertIn('custom render output', output)
 
+    def test_widget_delegates_value_omitted_from_data(self):
+        class CustomWidget(forms.Select):
+            def value_omitted_from_data(self, data, files, name):
+                return False
+        rel = Album._meta.get_field('band').remote_field
+        widget = CustomWidget()
+        wrapper = widgets.RelatedFieldWidgetWrapper(widget, rel, widget_admin_site)
+        self.assertIs(wrapper.value_omitted_from_data({}, {}, 'band'), False)
+
 
 @override_settings(ROOT_URLCONF='admin_widgets.urls')
 class AdminWidgetSeleniumTestCase(AdminSeleniumTestCase):