Add tests for empty range equality (python#103751)

terryjreedy · Apr 24, 2023 · dca27a6 · dca27a6
1 parent 5430093
commit dca27a6
Showing 1 changed file with 5 additions and 0 deletions.
diff --git a/Lib/test/test_range.py b/Lib/test/test_range.py
@@ -677,6 +677,11 @@ 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):