From 34fd585354829bc58605e23e505a898e74a90391 Mon Sep 17 00:00:00 2001
From: Corbin <cds@corbinsimpson.com>
Date: Mon, 4 Feb 2019 00:18:17 -0800
Subject: [PATCH] pypyPackages.mock: Unbreak PyPy for Python 2.7.

Unbreaks many PyPy packages.
---
 pkgs/development/python-modules/mock/default.nix | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/pkgs/development/python-modules/mock/default.nix b/pkgs/development/python-modules/mock/default.nix
index 142383b8db7..8ab724144f7 100644
--- a/pkgs/development/python-modules/mock/default.nix
+++ b/pkgs/development/python-modules/mock/default.nix
@@ -20,6 +20,12 @@ buildPythonPackage rec {
   buildInputs = [ unittest2 ];
   propagatedBuildInputs = [ funcsigs six pbr ];
 
+  # On PyPy for Python 2.7 in particular, Mock's tests have a known failure.
+  # Mock upstream has a decoration to disable the failing test and make
+  # everything pass, but it is not yet released. The commit:
+  # https://github.com/testing-cabal/mock/commit/73bfd51b7185#diff-354f30a63fb0907d4ad57269548329e3L12
+  doCheck = !(python.isPyPy && python.isPy27);
+
   checkPhase = ''
     ${python.interpreter} -m unittest discover
   '';