diff --git a/polls/tests.py b/polls/tests.py
index 7192b14..6274ef9 100644
--- a/polls/tests.py
+++ b/polls/tests.py
@@ -34,8 +34,8 @@ class QuestionModelTests(TestCase):
         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
@@ -43,10 +43,10 @@ def create_question(question_text, days):
     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):
         """
@@ -102,4 +102,26 @@ class QuestionIndexViewTests(TestCase):
         self.assertQuerySetEqual(
             response.context["latest_question_list"],
             [question2, question1],
-        )
\ No newline at end of file
+        )
+
+
+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,))  # type: ignore
+        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,))  # type: ignore
+        response = self.client.get(url)
+        self.assertContains(response, past_question.question_text)
diff --git a/polls/views.py b/polls/views.py
index 9150aed..a039ae5 100644
--- a/polls/views.py
+++ b/polls/views.py
@@ -19,15 +19,21 @@ class IndexView(generic.ListView):
         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
-        ]
+        return Question.objects.filter(pub_date__lte=timezone.now()).order_by(
+            "-pub_date"
+        )[:5]
 
 
 class DetailView(generic.DetailView):
     model = Question
     template_name = "polls/detail.html"
 
+    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