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-rw-r--r--tests/forms_tests/widget_tests/test_checkboxinput.py5
1 files changed, 5 insertions, 0 deletions
diff --git a/tests/forms_tests/widget_tests/test_checkboxinput.py b/tests/forms_tests/widget_tests/test_checkboxinput.py
index 1ae6ab73b6..37bb2df552 100644
--- a/tests/forms_tests/widget_tests/test_checkboxinput.py
+++ b/tests/forms_tests/widget_tests/test_checkboxinput.py
@@ -89,3 +89,8 @@ class CheckboxInputTest(WidgetTest):
def test_value_omitted_from_data(self):
self.assertIs(self.widget.value_omitted_from_data({'field': 'value'}, {}, 'field'), False)
self.assertIs(self.widget.value_omitted_from_data({}, {}, 'field'), False)
+
+ def test_get_context_does_not_mutate_attrs(self):
+ attrs = {'checked': False}
+ self.widget.get_context('name', True, attrs)
+ self.assertIs(attrs['checked'], False)