pythonPackages.scrapy: Fix tests on darwin

pkgs/development/python-modules/scrapy/default.nix

@@ -1,4 +1,5 @@
-{ lib, stdenv
+{ lib
+, stdenv
 , buildPythonPackage
 , isPy27
 , fetchPypi
@@ -79,7 +80,10 @@ buildPythonPackage rec {
     "test_retry_dns_error"
     "test_custom_asyncio_loop_enabled_true"
     "test_custom_loop_asyncio"
-  ] ++ stdenv.lib.optionals stdenv.isDarwin [ "test_xmliter_encoding" ];
+  ] ++ stdenv.lib.optionals stdenv.isDarwin [
+    "test_xmliter_encoding"
+    "test_download"
+  ];
 
   src = fetchPypi {
     inherit pname version;
@@ -92,6 +96,8 @@ buildPythonPackage rec {
     install -m 644 -D extras/scrapy_zsh_completion $out/share/zsh/site-functions/_scrapy
   '';
 
+  __darwinAllowLocalNetworking = true;
+
   meta = with lib; {
     description = "A fast high-level web crawling and web scraping framework, used to crawl websites and extract structured data from their pages";
     homepage = "https://scrapy.org/";