diff --git a/tests/modeltests/custom_methods/models.py b/tests/modeltests/custom_methods/models.py
index d420871373c57..15150a6c3f5d3 100644
--- a/tests/modeltests/custom_methods/models.py
+++ b/tests/modeltests/custom_methods/models.py
@@ -33,27 +33,4 @@ def articles_from_same_day_2(self):
             WHERE pub_date = %s
                 AND id != %s""", [connection.ops.value_to_db_date(self.pub_date),
                                   self.id])
-        # The asterisk in "(*row)" tells Python to expand the list into
-        # positional arguments to Article().
         return [self.__class__(*row) for row in cursor.fetchall()]
-
-__test__ = {'API_TESTS':"""
-# Create a couple of Articles.
->>> from datetime import date
->>> a = Article(id=None, headline='Area man programs in Python', pub_date=date(2005, 7, 27))
->>> a.save()
->>> b = Article(id=None, headline='Beatles reunite', pub_date=date(2005, 7, 27))
->>> b.save()
-
-# Test the custom methods.
->>> a.was_published_today()
-False
->>> a.articles_from_same_day_1()
-[<Article: Beatles reunite>]
->>> a.articles_from_same_day_2()
-[<Article: Beatles reunite>]
->>> b.articles_from_same_day_1()
-[<Article: Area man programs in Python>]
->>> b.articles_from_same_day_2()
-[<Article: Area man programs in Python>]
-"""}
diff --git a/tests/modeltests/custom_methods/tests.py b/tests/modeltests/custom_methods/tests.py
new file mode 100644
index 0000000000000..90a7f0da293f9
--- /dev/null
+++ b/tests/modeltests/custom_methods/tests.py
@@ -0,0 +1,42 @@
+from datetime import date
+
+from django.test import TestCase
+
+from models import Article
+
+
+class MethodsTests(TestCase):
+    def test_custom_methods(self):
+        a = Article.objects.create(
+            headline="Area man programs in Python", pub_date=date(2005, 7, 27)
+        )
+        b = Article.objects.create(
+            headline="Beatles reunite", pub_date=date(2005, 7, 27)
+        )
+
+        self.assertFalse(a.was_published_today())
+        self.assertQuerysetEqual(
+            a.articles_from_same_day_1(), [
+                "Beatles reunite",
+            ],
+            lambda a: a.headline,
+        )
+        self.assertQuerysetEqual(
+            a.articles_from_same_day_2(), [
+                "Beatles reunite",
+            ],
+            lambda a: a.headline
+        )
+
+        self.assertQuerysetEqual(
+            b.articles_from_same_day_1(), [
+                "Area man programs in Python",
+            ],
+            lambda a: a.headline,
+        )
+        self.assertQuerysetEqual(
+            b.articles_from_same_day_2(), [
+                "Area man programs in Python",
+            ],
+            lambda a: a.headline
+        )