From e95e6425ac354b8fb0c24580b740dbdc2ea72bd6 Mon Sep 17 00:00:00 2001
From: Baptiste Mispelon <bmispelon@gmail.com>
Date: Sat, 11 Dec 2021 20:17:29 +0100
Subject: Refs #24121 -- Added __repr__() to BaseFormSet.

---
 tests/forms_tests/tests/test_formsets.py | 63 ++++++++++++++++++++++++++++++++
 1 file changed, 63 insertions(+)

(limited to 'tests/forms_tests')

diff --git a/tests/forms_tests/tests/test_formsets.py b/tests/forms_tests/tests/test_formsets.py
index 1705d8bb6b..50342cfaa9 100644
--- a/tests/forms_tests/tests/test_formsets.py
+++ b/tests/forms_tests/tests/test_formsets.py
@@ -25,6 +25,12 @@ class Choice(Form):
 ChoiceFormSet = formset_factory(Choice)
 
 
+class ChoiceFormsetWithNonFormError(ChoiceFormSet):
+    def clean(self):
+        super().clean()
+        raise ValidationError('non-form error')
+
+
 class FavoriteDrinkForm(Form):
     name = CharField()
 
@@ -1328,6 +1334,63 @@ class FormsFormsetTestCase(SimpleTestCase):
         self.assertEqual(formset.non_form_errors().renderer, renderer)
         self.assertEqual(formset.empty_form.renderer, renderer)
 
+    def test_repr(self):
+        valid_formset = self.make_choiceformset([('test', 1)])
+        valid_formset.full_clean()
+        invalid_formset = self.make_choiceformset([('test', '')])
+        invalid_formset.full_clean()
+        partially_invalid_formset = self.make_choiceformset(
+            [('test', '1'), ('test', '')],
+        )
+        partially_invalid_formset.full_clean()
+        invalid_formset_non_form_errors_only = self.make_choiceformset(
+            [('test', '')],
+            formset_class=ChoiceFormsetWithNonFormError,
+        )
+        invalid_formset_non_form_errors_only.full_clean()
+
+        cases = [
+            (
+                self.make_choiceformset(),
+                '<ChoiceFormSet: bound=False valid=Unknown total_forms=1>',
+            ),
+            (
+                self.make_choiceformset(
+                    formset_class=formset_factory(Choice, extra=10),
+                ),
+                '<ChoiceFormSet: bound=False valid=Unknown total_forms=10>',
+            ),
+            (
+                self.make_choiceformset([]),
+                '<ChoiceFormSet: bound=True valid=Unknown total_forms=0>',
+            ),
+            (
+                self.make_choiceformset([('test', 1)]),
+                '<ChoiceFormSet: bound=True valid=Unknown total_forms=1>',
+            ),
+            (valid_formset, '<ChoiceFormSet: bound=True valid=True total_forms=1>'),
+            (invalid_formset, '<ChoiceFormSet: bound=True valid=False total_forms=1>'),
+            (
+                partially_invalid_formset,
+                '<ChoiceFormSet: bound=True valid=False total_forms=2>',
+            ),
+            (
+                invalid_formset_non_form_errors_only,
+                '<ChoiceFormsetWithNonFormError: bound=True valid=False total_forms=1>',
+            ),
+        ]
+        for formset, expected_repr in cases:
+            with self.subTest(expected_repr=expected_repr):
+                self.assertEqual(repr(formset), expected_repr)
+
+    def test_repr_do_not_trigger_validation(self):
+        formset = self.make_choiceformset([('test', 1)])
+        with mock.patch.object(formset, 'full_clean') as mocked_full_clean:
+            repr(formset)
+            mocked_full_clean.assert_not_called()
+            formset.is_valid()
+            mocked_full_clean.assert_called()
+
 
 @jinja2_tests
 class Jinja2FormsFormsetTestCase(FormsFormsetTestCase):
-- 
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