From 8535856d43a45d81b93514aac874d58df14171b1 Mon Sep 17 00:00:00 2001
From: "Jason R. Coombs" <jaraco@jaraco.com>
Date: Sun, 30 May 2021 12:39:18 -0400
Subject: [PATCH] Add test capturing missed expectation. Ref #300.

---
 tests/test_api.py | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/tests/test_api.py b/tests/test_api.py
index b3c8c2f8..819d4841 100644
--- a/tests/test_api.py
+++ b/tests/test_api.py
@@ -133,6 +133,22 @@ def test_entry_points_dict_construction(self):
         assert expected.category is DeprecationWarning
         assert "Construction of dict of EntryPoints is deprecated" in str(expected)
 
+    def test_entry_points_by_index(self):
+        """
+        Prior versions of Distribution.entry_points would return a
+        tuple that allowed access by index.
+        Capture this now deprecated use-case
+        See python/importlib_metadata#300 and bpo-44246.
+        """
+        eps = distribution('distinfo-pkg').entry_points
+        with warnings.catch_warnings(record=True) as caught:
+            eps[0]
+
+        # check warning
+        expected = next(iter(caught))
+        assert expected.category is DeprecationWarning
+        assert "Accessing entry points by index is deprecated" in str(expected)
+
     def test_entry_points_groups_getitem(self):
         """
         Prior versions of entry_points() returned a dict. Ensure