Removed redundant model field choices tests.

tests/choices/models.py

-"""
-Specifying 'choices' for a field
-
-Most fields take a ``choices`` parameter, which should be a tuple of tuples
-specifying which are the valid values for that field.
-
-For each field that has ``choices``, a model instance gets a
-``get_fieldname_display()`` method, where ``fieldname`` is the name of the
-field. This method returns the "human-readable" value of the field.
-"""
-
-from django.db import models
-from django.utils.translation import gettext_lazy as _
-
-
-class Person(models.Model):
-    GENDER_CHOICES = (
-        ('M', _('Male')),
-        ('F', _('Female')),
-    )
-    name = models.CharField(max_length=20)
-    gender = models.CharField(max_length=1, choices=GENDER_CHOICES)
-
-    def __str__(self):
-        return self.name

tests/choices/tests.py

-from django.test import TestCase
-
-from .models import Person
-
-
-class ChoicesTests(TestCase):
-    def test_display(self):
-        a = Person.objects.create(name='Adrian', gender='M')
-        s = Person.objects.create(name='Sara', gender='F')
-        self.assertEqual(a.gender, 'M')
-        self.assertEqual(s.gender, 'F')
-
-        self.assertEqual(a.get_gender_display(), 'Male')
-        self.assertEqual(s.get_gender_display(), 'Female')
-
-        # If the value for the field doesn't correspond to a valid choice,
-        # the value itself is provided as a display value.
-        a.gender = ''
-        self.assertEqual(a.get_gender_display(), '')
-
-        a.gender = 'U'
-        self.assertEqual(a.get_gender_display(), 'U')
-
-        # _get_FIELD_display() coerces lazy strings.
-        self.assertIsInstance(a.get_gender_display(), str)

tests/model_fields/models.py

@@ -12,6 +12,7 @@ from django.db.models.fields.files import ImageField, ImageFieldFile
 from django.db.models.fields.related import (
     ForeignKey, ForeignObject, ManyToManyField, OneToOneField,
 )
+from django.utils.translation import gettext_lazy as _
 
 try:
     from PIL import Image
@@ -46,6 +47,7 @@ class Whiz(models.Model):
         )
         ),
         (0, 'Other'),
+        (5, _('translated')),
     )
     c = models.IntegerField(choices=CHOICES, null=True)
 

tests/model_fields/tests.py

@@ -162,6 +162,12 @@ class GetFieldDisplayTests(SimpleTestCase):
         self.assertEqual(Whiz(c='').get_c_display(), '')        # Empty value
         self.assertEqual(WhizDelayed(c=0).get_c_display(), 'Other')  # Delayed choices
 
+    def test_get_FIELD_display_translated(self):
+        """A translated display value is coerced to str."""
+        val = Whiz(c=5).get_c_display()
+        self.assertIsInstance(val, str)
+        self.assertEqual(val, 'translated')
+
     def test_iterator_choices(self):
         """
         get_choices() works with Iterators.