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a9874d48b1
Regression in d2a26c1a90e837777dabdf3d67ceec4d2a70fb86. Thanks Adam Alton for the report and test, and Adam Johnson for suggesting the fix.
119 lines
4.4 KiB
Python
119 lines
4.4 KiB
Python
import pickle
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from django import forms
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from django.db import models
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from django.test import SimpleTestCase, TestCase
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from .models import (
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Foo, RenamedField, VerboseNameField, Whiz, WhizIter, WhizIterEmpty,
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)
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class BasicFieldTests(TestCase):
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def test_show_hidden_initial(self):
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"""
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Fields with choices respect show_hidden_initial as a kwarg to
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formfield().
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"""
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choices = [(0, 0), (1, 1)]
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model_field = models.Field(choices=choices)
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form_field = model_field.formfield(show_hidden_initial=True)
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self.assertTrue(form_field.show_hidden_initial)
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form_field = model_field.formfield(show_hidden_initial=False)
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self.assertFalse(form_field.show_hidden_initial)
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def test_field_repr(self):
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"""
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__repr__() of a field displays its name.
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"""
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f = Foo._meta.get_field('a')
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self.assertEqual(repr(f), '<django.db.models.fields.CharField: a>')
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f = models.fields.CharField()
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self.assertEqual(repr(f), '<django.db.models.fields.CharField>')
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def test_field_name(self):
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"""
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A defined field name (name="fieldname") is used instead of the model
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model's attribute name (modelname).
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"""
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instance = RenamedField()
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self.assertTrue(hasattr(instance, 'get_fieldname_display'))
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self.assertFalse(hasattr(instance, 'get_modelname_display'))
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def test_field_verbose_name(self):
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m = VerboseNameField
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for i in range(1, 23):
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self.assertEqual(m._meta.get_field('field%d' % i).verbose_name, 'verbose field%d' % i)
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self.assertEqual(m._meta.get_field('id').verbose_name, 'verbose pk')
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def test_choices_form_class(self):
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"""Can supply a custom choices form class to Field.formfield()"""
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choices = [('a', 'a')]
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field = models.CharField(choices=choices)
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klass = forms.TypedMultipleChoiceField
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self.assertIsInstance(field.formfield(choices_form_class=klass), klass)
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def test_formfield_disabled(self):
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"""Field.formfield() sets disabled for fields with choices."""
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field = models.CharField(choices=[('a', 'b')])
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form_field = field.formfield(disabled=True)
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self.assertIs(form_field.disabled, True)
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def test_field_str(self):
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f = models.Field()
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self.assertEqual(str(f), '<django.db.models.fields.Field>')
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f = Foo._meta.get_field('a')
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self.assertEqual(str(f), 'model_fields.Foo.a')
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def test_field_ordering(self):
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"""Fields are ordered based on their creation."""
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f1 = models.Field()
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f2 = models.Field(auto_created=True)
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f3 = models.Field()
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self.assertLess(f2, f1)
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self.assertGreater(f3, f1)
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self.assertIsNotNone(f1)
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self.assertNotIn(f2, (None, 1, ''))
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def test_field_instance_is_picklable(self):
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"""Field instances can be pickled."""
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field = models.Field(max_length=100, default='a string')
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# Must be picklable with this cached property populated (#28188).
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field._get_default
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pickle.dumps(field)
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class ChoicesTests(SimpleTestCase):
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def test_choices_and_field_display(self):
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"""
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get_choices() interacts with get_FIELD_display() to return the expected
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values.
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"""
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self.assertEqual(Whiz(c=1).get_c_display(), 'First') # A nested value
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self.assertEqual(Whiz(c=0).get_c_display(), 'Other') # A top level value
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self.assertEqual(Whiz(c=9).get_c_display(), 9) # Invalid value
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self.assertIsNone(Whiz(c=None).get_c_display()) # Blank value
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self.assertEqual(Whiz(c='').get_c_display(), '') # Empty value
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def test_iterator_choices(self):
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"""
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get_choices() works with Iterators.
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"""
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self.assertEqual(WhizIter(c=1).c, 1) # A nested value
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self.assertEqual(WhizIter(c=9).c, 9) # Invalid value
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self.assertIsNone(WhizIter(c=None).c) # Blank value
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self.assertEqual(WhizIter(c='').c, '') # Empty value
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def test_empty_iterator_choices(self):
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"""
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get_choices() works with empty iterators.
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"""
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self.assertEqual(WhizIterEmpty(c="a").c, "a") # A nested value
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self.assertEqual(WhizIterEmpty(c="b").c, "b") # Invalid value
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self.assertIsNone(WhizIterEmpty(c=None).c) # Blank value
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self.assertEqual(WhizIterEmpty(c='').c, '') # Empty value
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