Hướng dẫn Django cho người mới bắt đầu (P6)

    $ python manage.py shell

>>> import datetime
>>> from django.utils import timezone
>>> from polls.models import Question
# tạo bản sao cho Question với pub_date trong 30 ngày tới
>>> future_question = Question(pub_date=timezone.now() + datetime.timedelta(days=30))
>>> # Kiểm tra xem nó đã được xuất bản gần đây?
>>> future_question.was_published_recently()
True

import datetime

from django.test import TestCase
from django.utils import timezone

from .models import Question


class QuestionModelTests(TestCase):

    def test_was_published_recently_with_future_question(self):
        """
        was_published_recently() returns False for questions whose pub_date
        is in the future.
        """
        time = timezone.now() + datetime.timedelta(days=30)
        future_question = Question(pub_date=time)
        self.assertIs(future_question.was_published_recently(), False)

    $ python manage.py

Creating test database for alias 'default'...
System check identified no issues (0 silenced).
F
======================================================================
FAIL: test_was_published_recently_with_future_question (polls.tests.QuestionModelTests)
----------------------------------------------------------------------
Traceback (most recent call last):
  File "/path/to/mysite/polls/tests.py", line 16, in test_was_published_recently_with_future_question
    self.assertIs(future_question.was_published_recently(), False)
AssertionError: True is not False

----------------------------------------------------------------------
Ran 1 test in 0.001s

FAILED (failures=1)
Destroying test database for alias 'default'...