envutil.rb: envutil in child

* test/ruby/envutil.rb (assert_separately): require envutil in the
  child process too.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@40866 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 2 insertions, 1 deletions

diff --git a/test/ruby/envutil.rb b/test/ruby/envutil.rb
index c80a5f7da9..ce7226f86d 100644
--- a/test/ruby/envutil.rb
+++ b/test/ruby/envutil.rb
@@ -1,6 +1,7 @@
 # -*- coding: us-ascii -*-
 require "open3"
 require "timeout"
+require "test/unit"
 
 module EnvUtil
   def rubybin
@@ -283,7 +284,7 @@ module Test
           line ||= loc.lineno
         end
         src = <<eom
-  require 'test/unit';include Test::Unit::Assertions;begin;#{src}
+  require #{__dir__.dump}'/envutil';include Test::Unit::Assertions;begin;#{src}
   ensure
     puts [Marshal.dump($!)].pack('m'), "assertions=\#{self._assertions}"
   end