[3.11] Add tests for empty range equality (GH-103751) (#103760)

(cherry picked from commit dca27a69a8261353f7f986eb8f808f0d487ac4b7)

Co-authored-by: Kirill <80244920+Eclips4@users.noreply.github.com>

diff --git a/Lib/test/test_range.py b/Lib/test/test_range.py
index 851ad5b7c2f4851cc7f7cc2b473aef9c8e2beda3..83c830a10047cf04243798838d4435e73a5fbd33 100644 (file)
--- a/Lib/test/test_range.py
+++ b/Lib/test/test_range.py
@@ -648,6 +648,11 @@ class RangeTest(unittest.TestCase):
                          hash(range(2**200, 2**201, 2**100)))
         self.assertNotEqual(range(2**200, 2**201, 2**100),
                             range(2**200, 2**201 + 1, 2**100))
+        # Empty ranges
+        self.assertEqual(range(32, 16), range(0))
+        self.assertEqual(hash(range(32, 16)), hash(range(0)))
+        self.assertEqual(range(2, 1, 3), range(0))
+        self.assertEqual(hash(range(2, 1, 3)), hash(range(0)))
 
         # Order comparisons are not implemented for ranges.
         with self.assertRaises(TypeError):