From 0ea039db602c01ddc57eac40b1abd60704a7d00c Mon Sep 17 00:00:00 2001
From: Yuval Shimon <yuval.shimon@earnix.com>
Date: Sun, 12 Dec 2021 16:11:33 +0200
Subject: [PATCH] adding auto_detect=true test

---
 testing/test_assertion.py | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/testing/test_assertion.py b/testing/test_assertion.py
index fe5a3d3bb..8a4525cb7 100644
--- a/testing/test_assertion.py
+++ b/testing/test_assertion.py
@@ -1016,6 +1016,22 @@ class TestAssert_reprcompare_attrsclass:
         lines = callequal(left, right)
         assert lines is None
 
+    def test_attrs_with_auto_detect_and_custom_eq(self) -> None:
+        @attr.s(
+            auto_detect=True
+        )  # attr.s doesn’t ignore a custom eq if auto_detect=True
+        class SimpleDataObject:
+            field_a = attr.ib()
+
+            def __eq__(self, other):  # pragma: no cover
+                return super().__eq__(other)
+
+        left = SimpleDataObject(1)
+        right = SimpleDataObject(2)
+        # issue 9362
+        lines = callequal(left, right, verbose=2)
+        assert lines is None
+
     def test_attrs_with_custom_eq(self) -> None:
         @attr.define
         class SimpleDataObject: