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from django import forms
from django.db import models
from django.test import SimpleTestCase, TestCase
from .models import Post
class TextFieldTests(TestCase):
def test_max_length_passed_to_formfield(self):
"""
TextField passes its max_length attribute to form fields created using
their formfield() method.
"""
tf1 = models.TextField()
tf2 = models.TextField(max_length=2345)
self.assertIsNone(tf1.formfield().max_length)
self.assertEqual(2345, tf2.formfield().max_length)
def test_choices_generates_select_widget(self):
"""A TextField with choices uses a Select widget."""
f = models.TextField(choices=[("A", "A"), ("B", "B")])
self.assertIsInstance(f.formfield().widget, forms.Select)
def test_to_python(self):
"""TextField.to_python() should return a string."""
f = models.TextField()
self.assertEqual(f.to_python(1), "1")
def test_lookup_integer_in_textfield(self):
self.assertEqual(Post.objects.filter(body=24).count(), 0)
def test_emoji(self):
p = Post.objects.create(title="Whatever", body="Smile 😀.")
p.refresh_from_db()
self.assertEqual(p.body, "Smile 😀.")
class TestMethods(SimpleTestCase):
def test_deconstruct(self):
field = models.TextField()
*_, kwargs = field.deconstruct()
self.assertEqual(kwargs, {})
field = models.TextField(db_collation="utf8_esperanto_ci")
*_, kwargs = field.deconstruct()
self.assertEqual(kwargs, {"db_collation": "utf8_esperanto_ci"})
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