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from django.forms import ChoiceField, Field, Form, Select
from django.test import SimpleTestCase
class BasicFieldsTests(SimpleTestCase):
def test_field_sets_widget_is_required(self):
self.assertTrue(Field(required=True).widget.is_required)
self.assertFalse(Field(required=False).widget.is_required)
def test_cooperative_multiple_inheritance(self):
class A:
def __init__(self):
self.class_a_var = True
super().__init__()
class ComplexField(Field, A):
def __init__(self):
super().__init__()
f = ComplexField()
self.assertTrue(f.class_a_var)
def test_field_deepcopies_widget_instance(self):
class CustomChoiceField(ChoiceField):
widget = Select(attrs={"class": "my-custom-class"})
class TestForm(Form):
field1 = CustomChoiceField(choices=[])
field2 = CustomChoiceField(choices=[])
f = TestForm()
f.fields["field1"].choices = [("1", "1")]
f.fields["field2"].choices = [("2", "2")]
self.assertEqual(f.fields["field1"].widget.choices, [("1", "1")])
self.assertEqual(f.fields["field2"].widget.choices, [("2", "2")])
class DisabledFieldTests(SimpleTestCase):
def test_disabled_field_has_changed_always_false(self):
disabled_field = Field(disabled=True)
self.assertFalse(disabled_field.has_changed("x", "y"))
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