diff --git a/tests/forms_tests/field_tests/test_datetimefield.py b/tests/forms_tests/field_tests/test_datetimefield.py
index a1cfd22053..5cb527b3f6 100644
--- a/tests/forms_tests/field_tests/test_datetimefield.py
+++ b/tests/forms_tests/field_tests/test_datetimefield.py
@@ -1,4 +1,4 @@
-import datetime
+from datetime import date, datetime
 
 from django.forms import DateTimeField, ValidationError
 from django.test import SimpleTestCase
@@ -6,81 +6,95 @@ from django.test import SimpleTestCase
 
 class DateTimeFieldTest(SimpleTestCase):
 
-    def test_datetimefield_1(self):
+    def test_datetimefield_clean(self):
+        tests = [
+            (date(2006, 10, 25), datetime(2006, 10, 25, 0, 0)),
+            (datetime(2006, 10, 25, 14, 30), datetime(2006, 10, 25, 14, 30)),
+            (datetime(2006, 10, 25, 14, 30, 59), datetime(2006, 10, 25, 14, 30, 59)),
+            (
+                datetime(2006, 10, 25, 14, 30, 59, 200),
+                datetime(2006, 10, 25, 14, 30, 59, 200),
+            ),
+            ('2006-10-25 14:30:45.000200', datetime(2006, 10, 25, 14, 30, 45, 200)),
+            ('2006-10-25 14:30:45.0002', datetime(2006, 10, 25, 14, 30, 45, 200)),
+            ('2006-10-25 14:30:45', datetime(2006, 10, 25, 14, 30, 45)),
+            ('2006-10-25 14:30:00', datetime(2006, 10, 25, 14, 30)),
+            ('2006-10-25 14:30', datetime(2006, 10, 25, 14, 30)),
+            ('2006-10-25', datetime(2006, 10, 25, 0, 0)),
+            ('10/25/2006 14:30:45.000200', datetime(2006, 10, 25, 14, 30, 45, 200)),
+            ('10/25/2006 14:30:45', datetime(2006, 10, 25, 14, 30, 45)),
+            ('10/25/2006 14:30:00', datetime(2006, 10, 25, 14, 30)),
+            ('10/25/2006 14:30', datetime(2006, 10, 25, 14, 30)),
+            ('10/25/2006', datetime(2006, 10, 25, 0, 0)),
+            ('10/25/06 14:30:45.000200', datetime(2006, 10, 25, 14, 30, 45, 200)),
+            ('10/25/06 14:30:45', datetime(2006, 10, 25, 14, 30, 45)),
+            ('10/25/06 14:30:00', datetime(2006, 10, 25, 14, 30)),
+            ('10/25/06 14:30', datetime(2006, 10, 25, 14, 30)),
+            ('10/25/06', datetime(2006, 10, 25, 0, 0)),
+            # Whitespace stripping.
+            (' 2006-10-25   14:30:45 ', datetime(2006, 10, 25, 14, 30, 45)),
+            (' 2006-10-25 ', datetime(2006, 10, 25, 0, 0)),
+            (' 10/25/2006 14:30:45 ', datetime(2006, 10, 25, 14, 30, 45)),
+            (' 10/25/2006 14:30 ', datetime(2006, 10, 25, 14, 30)),
+            (' 10/25/2006 ', datetime(2006, 10, 25, 0, 0)),
+            (' 10/25/06 14:30:45 ', datetime(2006, 10, 25, 14, 30, 45)),
+            (' 10/25/06 ', datetime(2006, 10, 25, 0, 0)),
+        ]
         f = DateTimeField()
-        self.assertEqual(datetime.datetime(2006, 10, 25, 0, 0), f.clean(datetime.date(2006, 10, 25)))
-        self.assertEqual(datetime.datetime(2006, 10, 25, 14, 30), f.clean(datetime.datetime(2006, 10, 25, 14, 30)))
-        self.assertEqual(
-            datetime.datetime(2006, 10, 25, 14, 30, 59),
-            f.clean(datetime.datetime(2006, 10, 25, 14, 30, 59))
-        )
-        self.assertEqual(
-            datetime.datetime(2006, 10, 25, 14, 30, 59, 200),
-            f.clean(datetime.datetime(2006, 10, 25, 14, 30, 59, 200))
-        )
-        self.assertEqual(datetime.datetime(2006, 10, 25, 14, 30, 45, 200), f.clean('2006-10-25 14:30:45.000200'))
-        self.assertEqual(datetime.datetime(2006, 10, 25, 14, 30, 45, 200), f.clean('2006-10-25 14:30:45.0002'))
-        self.assertEqual(datetime.datetime(2006, 10, 25, 14, 30, 45), f.clean('2006-10-25 14:30:45'))
-        self.assertEqual(datetime.datetime(2006, 10, 25, 14, 30), f.clean('2006-10-25 14:30:00'))
-        self.assertEqual(datetime.datetime(2006, 10, 25, 14, 30), f.clean('2006-10-25 14:30'))
-        self.assertEqual(datetime.datetime(2006, 10, 25, 0, 0), f.clean('2006-10-25'))
-        self.assertEqual(datetime.datetime(2006, 10, 25, 14, 30, 45, 200), f.clean('10/25/2006 14:30:45.000200'))
-        self.assertEqual(datetime.datetime(2006, 10, 25, 14, 30, 45), f.clean('10/25/2006 14:30:45'))
-        self.assertEqual(datetime.datetime(2006, 10, 25, 14, 30), f.clean('10/25/2006 14:30:00'))
-        self.assertEqual(datetime.datetime(2006, 10, 25, 14, 30), f.clean('10/25/2006 14:30'))
-        self.assertEqual(datetime.datetime(2006, 10, 25, 0, 0), f.clean('10/25/2006'))
-        self.assertEqual(datetime.datetime(2006, 10, 25, 14, 30, 45, 200), f.clean('10/25/06 14:30:45.000200'))
-        self.assertEqual(datetime.datetime(2006, 10, 25, 14, 30, 45), f.clean('10/25/06 14:30:45'))
-        self.assertEqual(datetime.datetime(2006, 10, 25, 14, 30), f.clean('10/25/06 14:30:00'))
-        self.assertEqual(datetime.datetime(2006, 10, 25, 14, 30), f.clean('10/25/06 14:30'))
-        self.assertEqual(datetime.datetime(2006, 10, 25, 0, 0), f.clean('10/25/06'))
-        with self.assertRaisesMessage(ValidationError, "'Enter a valid date/time.'"):
-            f.clean('hello')
-        with self.assertRaisesMessage(ValidationError, "'Enter a valid date/time.'"):
-            f.clean('2006-10-25 4:30 p.m.')
+        for value, expected_datetime in tests:
+            with self.subTest(value=value):
+                self.assertEqual(f.clean(value), expected_datetime)
 
-    def test_datetimefield_2(self):
+    def test_datetimefield_clean_invalid(self):
+        f = DateTimeField()
+        msg = "'Enter a valid date/time.'"
+        with self.assertRaisesMessage(ValidationError, msg):
+            f.clean('hello')
+        with self.assertRaisesMessage(ValidationError, msg):
+            f.clean('2006-10-25 4:30 p.m.')
+        with self.assertRaisesMessage(ValidationError, msg):
+            f.clean('   ')
         f = DateTimeField(input_formats=['%Y %m %d %I:%M %p'])
-        self.assertEqual(datetime.datetime(2006, 10, 25, 0, 0), f.clean(datetime.date(2006, 10, 25)))
-        self.assertEqual(datetime.datetime(2006, 10, 25, 14, 30), f.clean(datetime.datetime(2006, 10, 25, 14, 30)))
-        self.assertEqual(
-            datetime.datetime(2006, 10, 25, 14, 30, 59),
-            f.clean(datetime.datetime(2006, 10, 25, 14, 30, 59))
-        )
-        self.assertEqual(
-            datetime.datetime(2006, 10, 25, 14, 30, 59, 200),
-            f.clean(datetime.datetime(2006, 10, 25, 14, 30, 59, 200))
-        )
-        self.assertEqual(datetime.datetime(2006, 10, 25, 14, 30), f.clean('2006 10 25 2:30 PM'))
-        with self.assertRaisesMessage(ValidationError, "'Enter a valid date/time.'"):
+        with self.assertRaisesMessage(ValidationError, msg):
             f.clean('2006-10-25 14:30:45')
 
-    def test_datetimefield_3(self):
+    def test_datetimefield_clean_input_formats(self):
+        tests = [
+            ('%Y %m %d %I:%M %p', (
+                (date(2006, 10, 25), datetime(2006, 10, 25, 0, 0)),
+                (datetime(2006, 10, 25, 14, 30), datetime(2006, 10, 25, 14, 30)),
+                (
+                    datetime(2006, 10, 25, 14, 30, 59),
+                    datetime(2006, 10, 25, 14, 30, 59),
+                ),
+                (
+                    datetime(2006, 10, 25, 14, 30, 59, 200),
+                    datetime(2006, 10, 25, 14, 30, 59, 200),
+                ),
+                ('2006 10 25 2:30 PM', datetime(2006, 10, 25, 14, 30)),
+            )),
+            ('%Y.%m.%d %H:%M:%S.%f', (
+                (
+                    '2006.10.25 14:30:45.0002',
+                    datetime(2006, 10, 25, 14, 30, 45, 200),
+                ),
+            )),
+        ]
+        f = DateTimeField()
+        for input_format, values in tests:
+            f = DateTimeField(input_formats=[input_format])
+            for value, expected_datetime in values:
+                with self.subTest(value=value, input_format=input_format):
+                    self.assertEqual(f.clean(value), expected_datetime)
+
+    def test_datetimefield_not_required(self):
         f = DateTimeField(required=False)
         self.assertIsNone(f.clean(None))
         self.assertEqual('None', repr(f.clean(None)))
         self.assertIsNone(f.clean(''))
         self.assertEqual('None', repr(f.clean('')))
 
-    def test_datetimefield_4(self):
-        f = DateTimeField()
-        # Test whitespace stripping behavior (#5714)
-        self.assertEqual(datetime.datetime(2006, 10, 25, 14, 30, 45), f.clean(' 2006-10-25   14:30:45 '))
-        self.assertEqual(datetime.datetime(2006, 10, 25, 0, 0), f.clean(' 2006-10-25 '))
-        self.assertEqual(datetime.datetime(2006, 10, 25, 14, 30, 45), f.clean(' 10/25/2006 14:30:45 '))
-        self.assertEqual(datetime.datetime(2006, 10, 25, 14, 30), f.clean(' 10/25/2006 14:30 '))
-        self.assertEqual(datetime.datetime(2006, 10, 25, 0, 0), f.clean(' 10/25/2006 '))
-        self.assertEqual(datetime.datetime(2006, 10, 25, 14, 30, 45), f.clean(' 10/25/06 14:30:45 '))
-        self.assertEqual(datetime.datetime(2006, 10, 25, 0, 0), f.clean(' 10/25/06 '))
-        with self.assertRaisesMessage(ValidationError, "'Enter a valid date/time.'"):
-            f.clean('   ')
-
-    def test_datetimefield_5(self):
-        f = DateTimeField(input_formats=['%Y.%m.%d %H:%M:%S.%f'])
-        self.assertEqual(datetime.datetime(2006, 10, 25, 14, 30, 45, 200), f.clean('2006.10.25 14:30:45.0002'))
-
     def test_datetimefield_changed(self):
-        format = '%Y %m %d %I:%M %p'
-        f = DateTimeField(input_formats=[format])
-        d = datetime.datetime(2006, 9, 17, 14, 30, 0)
+        f = DateTimeField(input_formats=['%Y %m %d %I:%M %p'])
+        d = datetime(2006, 9, 17, 14, 30, 0)
         self.assertFalse(f.has_changed(d, '2006 09 17 2:30 PM'))