1 files changed, 9 insertions, 6 deletions
diff --git a/spec/ruby/core/binding/irb_spec.rb b/spec/ruby/core/binding/irb_spec.rb
index b3bc274f78..2607c7ef33 100644
--- a/spec/ruby/core/binding/irb_spec.rb
+++ b/spec/ruby/core/binding/irb_spec.rb
@@ -1,16 +1,19 @@
 require_relative '../../spec_helper'
+require 'tmpdir'
 
 describe "Binding#irb" do
   it "creates an IRB session with the binding in scope" do
     irb_fixture = fixture __FILE__, "irb.rb"
-    irbrc_fixture = fixture __FILE__, "irbrc"
+    envs = %w[IRBRC HOME XDG_CONFIG_HOME].to_h {|e| [e, nil]}
 
-    out = IO.popen([{"IRBRC"=>irbrc_fixture}, *ruby_exe, irb_fixture], "r+") do |pipe|
-      pipe.puts "a ** 2"
-      pipe.puts "exit"
-      pipe.readlines.map(&:chomp)
+    out = Dir.mktmpdir do |dir|
+      IO.popen([envs, *ruby_exe, irb_fixture, chdir: dir], "r+") do |pipe|
+        pipe.puts "a ** 2"
+        pipe.puts "exit"
+        pipe.readlines.map(&:chomp).reject(&:empty?)
+      end
     end
 
-    out[-3..-1].should == ["a ** 2", "100", "exit"]
+    out.last(3).should == ["a ** 2", "100", "exit"]
   end
 end