https://git.ruby-lang.org/ruby.git/commit/?id=8b39df854d

From 8b39df854d7dea1c15949c6b047bcb0f0a12c287 Mon Sep 17 00:00:00 2001
From: Nobuyoshi Nakada <nobu@r...>
Date: Fri, 31 May 2019 16:31:22 +0900
Subject: Let irb use an empty file as irbrc

to get rid of side-effect by existing .irbrc file.

diff --git a/spec/ruby/core/binding/fixtures/irbrc b/spec/ruby/core/binding/fixtures/irbrc
new file mode 100644
index 0000000..2bc12af
--- /dev/null
+++ b/spec/ruby/core/binding/fixtures/irbrc
@@ -0,0 +1 @@
+# empty configuration
diff --git a/spec/ruby/core/binding/irb_spec.rb b/spec/ruby/core/binding/irb_spec.rb
index dd3df0b..bd37b41 100644
--- a/spec/ruby/core/binding/irb_spec.rb
+++ b/spec/ruby/core/binding/irb_spec.rb
@@ -4,8 +4,9 @@ ruby_version_is "2.5" do https://github.com/ruby/ruby/blob/trunk/spec/ruby/core/binding/irb_spec.rb#L4
   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"
 
-      out = IO.popen([*ruby_exe, irb_fixture], "r+") do |pipe|
+      out = IO.popen([{"IRBRC"=>irbrc_fixture}, *ruby_exe, irb_fixture], "r+") do |pipe|
         pipe.puts "a ** 2"
         pipe.puts "exit"
         pipe.readlines.map(&:chomp)
-- 
cgit v0.10.2


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