https://git.ruby-lang.org/ruby.git/commit/?id=99680f81e8

From 99680f81e832506792cf32d830d09954acd220fc Mon Sep 17 00:00:00 2001
From: Nobuyoshi Nakada <nobu@r...>
Date: Wed, 24 Jul 2019 13:24:18 +0900
Subject: [rubygems/rubygems] Resolve `@@project_dir` from test file paths

`Dir.pwd` may differ from the source path.  Test directories and
files should be resolved from test file paths.

https://github.com/rubygems/rubygems/commit/e18e7c81b4

diff --git a/lib/rubygems/test_case.rb b/lib/rubygems/test_case.rb
index b466e7a..a8cc5d0 100644
--- a/lib/rubygems/test_case.rb
+++ b/lib/rubygems/test_case.rb
@@ -232,8 +232,6 @@ class Gem::TestCase < (defined?(Minitest::Test) ? Minitest::Test : MiniTest::Uni https://github.com/ruby/ruby/blob/trunk/lib/rubygems/test_case.rb#L232
   undef_method :default_test if instance_methods.include? 'default_test' or
                                 instance_methods.include? :default_test
 
-  @@project_dir = Dir.pwd.untaint unless defined?(@@project_dir)
-
   ##
   # #setup prepares a sandboxed location to install gems.  All installs are
   # directed to a temporary directory.  All install plugins are removed.
diff --git a/test/rubygems/test_gem.rb b/test/rubygems/test_gem.rb
index c90ad2d..a08a86d 100644
--- a/test/rubygems/test_gem.rb
+++ b/test/rubygems/test_gem.rb
@@ -17,6 +17,8 @@ class TestGem < Gem::TestCase https://github.com/ruby/ruby/blob/trunk/test/rubygems/test_gem.rb#L17
 
   PLUGINS_LOADED = [] # rubocop:disable Style/MutableConstant
 
+  @@project_dir = File.expand_path('../../..', __FILE__).untaint
+
   def setup
     super
 
diff --git a/test/rubygems/test_gem_command_manager.rb b/test/rubygems/test_gem_command_manager.rb
index 6ada96f..73bfd20 100644
--- a/test/rubygems/test_gem_command_manager.rb
+++ b/test/rubygems/test_gem_command_manager.rb
@@ -4,6 +4,8 @@ require 'rubygems/command_manager' https://github.com/ruby/ruby/blob/trunk/test/rubygems/test_gem_command_manager.rb#L4
 
 class TestGemCommandManager < Gem::TestCase
 
+  @@project_dir = File.expand_path('../../..', __FILE__).untaint
+
   def setup
     super
 
-- 
cgit v0.10.2


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