Here is my tests.py file based on the tutorial. When i run the QuestionDetailViewTests it’s not working.
import datetime
from django.urls import reverse
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)
def test_was_published_recently_with_old_question(self):
"""
was_published_recently() returns False for questions whose pub_date
is older than 1 day.
"""
time = timezone.now() - datetime.timedelta(days=1, seconds=1)
old_question = Question(pub_date=time)
self.assertIs(old_question.was_published_recently(), False)
def test_was_published_recently_with_recent_question(self):
"""
was_published_recently() returns True for questions whose pub_date
is within the last day.
"""
time = timezone.now() - datetime.timedelta(hours=23, minutes=59, seconds=59)
recent_question = Question(pub_date=time)
self.assertIs(recent_question.was_published_recently(), True)
def create_question(question_text, days):
"""
Create a question with the given `question_text` and published the
given number of `days` offset to now (negative for questions published
in the past, positive for questions that have yet to be published).
"""
time = timezone.now() + datetime.timedelta(days=days)
return Question.objects.create(question_text=question_text, pub_date=time)
class QuestionIndexViewTests(TestCase):
def test_no_questions(self):
"""
If no questions exist, an appropriate message is displayed.
"""
response = self.client.get(reverse("polls:index"))
self.assertEqual(response.status_code, 200)
self.assertContains(response, "No polls are available.")
self.assertQuerySetEqual(response.context["latest_question_list"], [])
def test_past_question(self):
"""
Questions with a pub_date in the past are displayed on the
index page.
"""
question = create_question(question_text="Past question.", days=-30)
response = self.client.get(reverse("polls:index"))
self.assertQuerySetEqual(
response.context["latest_question_list"],
[question],
)
def test_future_question(self):
"""
Questions with a pub_date in the future aren't displayed on
the index page.
"""
create_question(question_text="Future question.", days=30)
response = self.client.get(reverse("polls:index"))
self.assertContains(response, "No polls are available.")
self.assertQuerySetEqual(response.context["latest_question_list"], [])
def test_future_question_and_past_question(self):
"""
Even if both past and future questions exist, only past questions
are displayed.
"""
question = create_question(question_text="Past question.", days=-30)
create_question(question_text="Future question.", days=30)
response = self.client.get(reverse("polls:index"))
self.assertQuerySetEqual(
response.context["latest_question_list"],
[question],
)
def test_two_past_questions(self):
"""
The questions index page may display multiple questions.
"""
question1 = create_question(question_text="Past question 1.", days=-30)
question2 = create_question(question_text="Past question 2.", days=-5)
response = self.client.get(reverse("polls:index"))
self.assertQuerySetEqual(
response.context["latest_question_list"],
[question2, question1],
)
class QuestionDetailViewTests(TestCase):
def test_future_question(self):
"""
The detail view of a question with a pub_date in the future
returns a 404 not found.
"""
future_question = create_question(question_text="Future question.", days=5)
url = reverse("polls:detail", args=(future_question.id,))
response = self.client.get(url)
self.assertEqual(response.status_code, 404)
def test_past_question(self):
"""
The detail view of a question with a pub_date in the past
displays the question's text.
"""
past_question = create_question(question_text="Past Question.", days=-5)
url = reverse("polls:detail", args=(past_question.id,))
response = self.client.get(url)
self.assertContains(response, past_question.question_text)
here is my views.py file
from django.db.models import F
from django.http import HttpResponseRedirect
from django.shortcuts import get_object_or_404, render
from django.urls import reverse
from django.views import generic
from django.utils import timezone
from .models import Choice, Question
from django.http import HttpResponse
from django.template import loader
from django.http import Http404
def index(request):
latest_question_list = Question.objects.order_by("-pub_date")[:5]
template = loader.get_template("polls/index.html")
context = {
"latest_question_list": latest_question_list,
}
return HttpResponse(template.render(context, request))
def detail(request, question_id):
try:
question = Question.objects.get(pk=question_id)
except Question.DoesNotExist:
raise Http404("Question does not exist")
return render(request, "polls/detail.html", {"question": question})
def results(request, question_id):
question = get_object_or_404(Question, pk=question_id)
return render(request, "polls/results.html", {"question": question})
class IndexView(generic.ListView):
template_name = "polls/index.html"
context_object_name = "latest_question_list"
def get_queryset(self):
"""
Return the last five published questions (not including those set to be
published in the future).
"""
return Question.objects.filter(pub_date__lte=timezone.now()).order_by("-pub_date")[
:5
]
class DetailView(generic.DetailView):
...
def get_queryset(self):
"""
Excludes any questions that aren't published yet.
"""
return Question.objects.filter(pub_date__lte=timezone.now())
class ResultsView(generic.DetailView):
model = Question
template_name = "polls/results.html"
def vote(request, question_id):
question = get_object_or_404(Question, pk=question_id)
try:
selected_choice = question.choice_set.get(pk=request.POST["choice"])
except (KeyError, Choice.DoesNotExist):
# Redisplay the question voting form.
return render(
request,
"polls/detail.html",
{
"question": question,
"error_message": "You didn't select a choice.",
},
)
else:
selected_choice.votes = F("votes") + 1
selected_choice.save()
# Always return an HttpResponseRedirect after successfully dealing
# with POST data. This prevents data from being posted twice if a
# user hits the Back button.
return HttpResponseRedirect(reverse("polls:results", args=(question.id,)))
# Leave the rest of the views (detail, results, vote) unchanged
here is the error generated by the test
/Users/maxb/Desktop/CS2340/mysite/.venv/bin/python /Applications/PyCharm.app/Contents/plugins/python-ce/helpers/pycharm/django_test_manage.py test polls.tests.QuestionDetailViewTests /Users/maxb/Desktop/CS2340/mysite
Testing started at 08:09 ...
Creating test database for alias 'default'...
Found 2 test(s).
System check identified no issues (0 silenced).
Destroying test database for alias 'default'...
Error
Traceback (most recent call last):
File "/Users/maxb/Desktop/CS2340/mysite/polls/tests.py", line 122, in test_past_question
response = self.client.get(url)
^^^^^^^^^^^^^^^^^^^^
File "/Users/maxb/Desktop/CS2340/mysite/.venv/lib/python3.12/site-packages/django/test/client.py", line 1129, in get
response = super().get(
^^^^^^^^^^^^
File "/Users/maxb/Desktop/CS2340/mysite/.venv/lib/python3.12/site-packages/django/test/client.py", line 479, in get
return self.generic(
^^^^^^^^^^^^^
File "/Users/maxb/Desktop/CS2340/mysite/.venv/lib/python3.12/site-packages/django/test/client.py", line 676, in generic
return self.request(**r)
^^^^^^^^^^^^^^^^^
File "/Users/maxb/Desktop/CS2340/mysite/.venv/lib/python3.12/site-packages/django/test/client.py", line 1092, in request
self.check_exception(response)
File "/Users/maxb/Desktop/CS2340/mysite/.venv/lib/python3.12/site-packages/django/test/client.py", line 805, in check_exception
raise exc_value
File "/Users/maxb/Desktop/CS2340/mysite/.venv/lib/python3.12/site-packages/django/core/handlers/exception.py", line 55, in inner
response = get_response(request)
^^^^^^^^^^^^^^^^^^^^^
File "/Users/maxb/Desktop/CS2340/mysite/.venv/lib/python3.12/site-packages/django/core/handlers/base.py", line 220, in _get_response
response = response.render()
^^^^^^^^^^^^^^^^^
File "/Users/maxb/Desktop/CS2340/mysite/.venv/lib/python3.12/site-packages/django/template/response.py", line 114, in render
self.content = self.rendered_content
^^^^^^^^^^^^^^^^^^^^^
File "/Users/maxb/Desktop/CS2340/mysite/.venv/lib/python3.12/site-packages/django/template/response.py", line 90, in rendered_content
template = self.resolve_template(self.template_name)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/Users/maxb/Desktop/CS2340/mysite/.venv/lib/python3.12/site-packages/django/template/response.py", line 72, in resolve_template
return select_template(template, using=self.using)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/Users/maxb/Desktop/CS2340/mysite/.venv/lib/python3.12/site-packages/django/template/loader.py", line 47, in select_template
raise TemplateDoesNotExist(", ".join(template_name_list), chain=chain)
django.template.exceptions.TemplateDoesNotExist: polls/question_detail.html
Process finished with exit code 1