From b6237fb589b564a3461c845b2b5c820f5d2d80c2 Mon Sep 17 00:00:00 2001
From: Maximilian Bosch <maximilian@mbosch.me>
Date: Fri, 11 Oct 2019 21:48:30 +0200
Subject: [PATCH] python3Packages.diff-match-patch: fix build

Rather than using autodiscovery, the checkPhase should import
`__init__.py` from `diff_match_patch.tests to execute all relevant
tests. Otherwise several python2-related tests are executed in a py3 env
and break the build.

See also: https://hydra.nixos.org/build/102482273
---
 .../development/python-modules/diff-match-patch/default.nix | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/pkgs/development/python-modules/diff-match-patch/default.nix b/pkgs/development/python-modules/diff-match-patch/default.nix
index cf1bebad144..5887575f195 100644
--- a/pkgs/development/python-modules/diff-match-patch/default.nix
+++ b/pkgs/development/python-modules/diff-match-patch/default.nix
@@ -1,4 +1,4 @@
-{ lib, buildPythonPackage, fetchPypi }:
+{ lib, buildPythonPackage, fetchPypi, python }:
 
 buildPythonPackage rec {
   pname = "diff-match-patch";
@@ -14,4 +14,8 @@ buildPythonPackage rec {
     inherit pname version;
     sha256 = "a809a996d0f09b9bbd59e9bbd0b71eed8c807922512910e05cbd3f9480712ddb";
   };
+
+  checkPhase = ''
+    ${python.interpreter} -m unittest -v diff_match_patch.tests
+  '';
 }