Add tests for empty range equality (pythonGH-103751)

Eclips4 · miss-islington · commit 8fa2f09ce6e3 · 2023-04-24T14:32:22.000Z
(cherry picked from commit dca27a6) Co-authored-by: Kirill <80244920+Eclips4@users.noreply.github.com>
diff --git a/Lib/test/test_range.py b/Lib/test/test_range.py
@@ -648,6 +648,11 @@ def test_comparison(self):
                          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):
