Fixed #23742 -- Added an option to reverse tests order.

This is useful for debugging side effects affecting tests that
are usually executed before a given test. Full suite and pair
tests sort cases more or less deterministically, thus some test
cross-dependencies are easier to reveal by reversing the order.

Thanks Preston Timmons for the review.

1 files changed, 53 insertions, 3 deletions

diff --git a/tests/test_discovery_sample2/tests.py b/tests/test_discovery_sample2/tests.py
index 232054a9f1..ac3e9daba0 100644
--- a/tests/test_discovery_sample2/tests.py
+++ b/tests/test_discovery_sample2/tests.py
@@ -1,7 +1,57 @@
-from django.test import TestCase
+from unittest import TestCase
 
+from django.test import SimpleTestCase, TestCase as DjangoTestCase
 
-class Test(TestCase):
 
-    def test_sample(self):
+class DjangoCase1(DjangoTestCase):
+
+    def test_1(self):
+        pass
+
+    def test_2(self):
+        pass
+
+
+class DjangoCase2(DjangoTestCase):
+
+    def test_1(self):
+        pass
+
+    def test_2(self):
+        pass
+
+
+class SimpleCase1(SimpleTestCase):
+
+    def test_1(self):
+        pass
+
+    def test_2(self):
+        pass
+
+
+class SimpleCase2(SimpleTestCase):
+
+    def test_1(self):
+        pass
+
+    def test_2(self):
+        pass
+
+
+class UnittestCase1(TestCase):
+
+    def test_1(self):
+        pass
+
+    def test_2(self):
+        pass
+
+
+class UnittestCase2(TestCase):
+
+    def test_1(self):
+        pass
+
+    def test_2(self):
         pass