commit afd12650580725ac598b2845384771c14c4f952e
author Zackery Spytz <zspytz@gmail.com> Fri Apr 02 09:28:35 2021 -0600
committer GitHub <noreply@github.com> Sat Apr 03 00:28:35 2021 +0900
tree 2290e54eaa5fdb75d0b0513f0e575c440150fafd
parent 240bcf82a11fe7433a61da70605e924c53b88096

bpo-31956: Add start and stop parameters to array.index() (GH-25059)

Co-Authored-By: Anders Lorentsen <Phaqui@gmail.com>

Lib/test/test_array.py

diff --git a/Lib/test/test_array.py b/Lib/test/test_array.py
index 77a0c64..bdcd125 100644
--- a/Lib/test/test_array.py
+++ b/Lib/test/test_array.py
@@ -918,6 +918,17 @@ def test_index(self):
         self.assertRaises(ValueError, a.index, None)
         self.assertRaises(ValueError, a.index, self.outside)
 
+        a = array.array('i', [-2, -1, 0, 0, 1, 2])
+        self.assertEqual(a.index(0), 2)
+        self.assertEqual(a.index(0, 2), 2)
+        self.assertEqual(a.index(0, -4), 2)
+        self.assertEqual(a.index(-2, -10), 0)
+        self.assertEqual(a.index(0, 3), 3)
+        self.assertEqual(a.index(0, -3), 3)
+        self.assertEqual(a.index(0, 3, 4), 3)
+        self.assertEqual(a.index(0, -3, -2), 3)
+        self.assertRaises(ValueError, a.index, 2, 0, -10)
+
     def test_count(self):
         example = 2*self.example
         a = array.array(self.typecode, example)