From fce13c3e465ec127cd70b104bc647b74dcd7cd9d Mon Sep 17 00:00:00 2001
From: holger krekel <holger@merlinux.eu>
Date: Sun, 28 Oct 2012 14:52:43 +0100
Subject: [PATCH] re-allow to parametrize with values that don't support __eq__
 (closes issue213)

---
 CHANGELOG              |  6 ++++++
 _pytest/python.py      |  2 +-
 testing/test_python.py | 13 +++++++++++++
 3 files changed, 20 insertions(+), 1 deletion(-)

diff --git a/CHANGELOG b/CHANGELOG
index 354c70013..64710f659 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -1,3 +1,9 @@
+Changes between 2.3.2 and 2.3.3.dev
+-----------------------------------
+
+- fix issue213 - allow to parametrize with values like numpy arrays that
+  do not support an __eq__ operator 
+
 Changes between 2.3.1 and 2.3.2
 -----------------------------------
 
diff --git a/_pytest/python.py b/_pytest/python.py
index cad2d37ef..3a28f7771 100644
--- a/_pytest/python.py
+++ b/_pytest/python.py
@@ -598,7 +598,7 @@ class CallSpec2(object):
             if valtype == "funcargs":
                 self.params[arg] = id
             self._arg2scopenum[arg] = scopenum
-            if val == _notexists:
+            if val is _notexists:
                 self._emptyparamspecified = True
         self._idlist.append(id)
 
diff --git a/testing/test_python.py b/testing/test_python.py
index 78b5484c0..77c206f4c 100644
--- a/testing/test_python.py
+++ b/testing/test_python.py
@@ -313,6 +313,19 @@ class TestFunction:
         reprec = testdir.inline_run()
         reprec.assertoutcome(skipped=1)
 
+    def test_issue213_parametrize_value_no_equal(self, testdir):
+        testdir.makepyfile("""
+            import pytest
+            class A:
+                def __eq__(self, other):
+                    raise ValueError("not possible")
+            @pytest.mark.parametrize('arg', [A()])
+            def test_function(arg):
+                assert arg.__class__.__name__ == "A"
+        """)
+        reprec = testdir.inline_run()
+        reprec.assertoutcome(passed=1)
+
     def test_function_equality_with_callspec(self, testdir, tmpdir):
         items = testdir.getitems("""
             import pytest