added test (thanks @nicoddemus) and added links in Changelog

CHANGELOG.rst

@@ -13,7 +13,7 @@
   Thanks `@nicoddemus`_ for the PR.
 
 * Fixed memory leak in the RaisesContext (pytest.raises) (`#1965`_).
-  Thanks `@MSeifert04`_ for the report the PR.
+  Thanks `@MSeifert04`_ for the report and the PR.
 
 * Fixed false-positives warnings from assertion rewrite hook for modules that were rewritten but
   were later marked explicitly by ``pytest.register_assert_rewrite``
@@ -39,12 +39,14 @@
 
 .. _@adborden: https://github.com/adborden
 .. _@cwitty: https://github.com/cwitty
-.. _@okulynyak: https://github.com/okulynyak
-.. _@matclab: https://github.com/matclab
-.. _@gdyuldin: https://github.com/gdyuldin
 .. _@d_b_w: https://github.com/d_b_w
+.. _@gdyuldin: https://github.com/gdyuldin
+.. _@matclab: https://github.com/matclab
+.. _@MSeifert04: https://github.com/MSeifert04
+.. _@okulynyak: https://github.com/okulynyak
 
 .. _#442: https://github.com/pytest-dev/pytest/issues/442
+.. _#1965: https://github.com/pytest-dev/pytest/issues/1965
 .. _#1976: https://github.com/pytest-dev/pytest/issues/1976
 .. _#1984: https://github.com/pytest-dev/pytest/issues/1984
 .. _#1998: https://github.com/pytest-dev/pytest/issues/1998

testing/python/raises.py

@@ -96,3 +96,21 @@ def test_custom_raise_message(self):
             assert e.msg == message
         else:
             assert False, "Expected pytest.raises.Exception"
+
+    @pytest.mark.parametrize('method', ['function', 'with'])
+    def test_raises_memoryleak(self, method):
+        import weakref
+
+        class T:
+            def __call__(self):
+                raise ValueError
+
+        t = T()
+        if method == 'function':
+            pytest.raises(ValueError, t)
+        else:
+            with pytest.raises(ValueError):
+                t()
+
+        t = weakref.ref(t)
+        assert t() is None