From b29c68e6876976b22f64318bf390f05447e4ca01 Mon Sep 17 00:00:00 2001
From: Nobuyoshi Nakada <nobu@ruby-lang.org>
Date: Thu, 26 Sep 2019 22:57:25 +0900
Subject: [PATCH] Restore ENV, rubygems always sets SOURCE_DATE_EPOCH now

---
 test/rdoc/test_rdoc_ri_paths.rb | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/test/rdoc/test_rdoc_ri_paths.rb b/test/rdoc/test_rdoc_ri_paths.rb
index 01ade58dad..726922daf0 100644
--- a/test/rdoc/test_rdoc_ri_paths.rb
+++ b/test/rdoc/test_rdoc_ri_paths.rb
@@ -6,6 +6,7 @@ class TestRDocRIPaths < RDoc::TestCase
   def setup
     super
 
+    @orig_env = ENV.to_hash
     @orig_gem_path = Gem.path
 
     @tempdir = File.join Dir.tmpdir, "test_rdoc_ri_paths_#{$$}"
@@ -40,6 +41,7 @@ class TestRDocRIPaths < RDoc::TestCase
     Gem.use_paths(*@orig_gem_path)
     Gem::Specification.reset
     FileUtils.rm_rf @tempdir
+    ENV.replace(@orig_env)
   end
 
   def test_class_each