https://git.ruby-lang.org/ruby.git/commit/?id=106d616cc8

From 106d616cc8a5c95a2944f9ea3d7f99ee54042cdd Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?David=20Rodr=C3=ADguez?= <deivid.rodriguez@r...>
Date: Tue, 16 Jun 2020 16:26:31 +0200
Subject: Make sure to only reset "dummy" $LOADED_FEATURES

Namely, those generated under `/tmp`.

The previous approach was brittle and broken in the case of ruby-core,
because under that setup, the current folder is in the original
`$LOAD_PATH`, and dummy features are created under `./tmp`, so they were
failing to be reset.

diff --git a/lib/rubygems/test_case.rb b/lib/rubygems/test_case.rb
index bb8355f..9e1c8ea 100644
--- a/lib/rubygems/test_case.rb
+++ b/lib/rubygems/test_case.rb
@@ -429,11 +429,8 @@ class Gem::TestCase < Minitest::Test https://github.com/ruby/ruby/blob/trunk/lib/rubygems/test_case.rb#L429
     $LOAD_PATH.replace @orig_LOAD_PATH if @orig_LOAD_PATH
     if @orig_LOADED_FEATURES
       if @orig_LOAD_PATH
-        paths = @orig_LOAD_PATH.map {|path| File.join(File.expand_path(path), "/") }
         ($LOADED_FEATURES - @orig_LOADED_FEATURES).each do |feat|
-          unless paths.any? {|path| feat.start_with?(path) }
-            $LOADED_FEATURES.delete(feat)
-          end
+          $LOADED_FEATURES.delete(feat) if feat.start_with?(@tmp)
         end
       else
         $LOADED_FEATURES.replace @orig_LOADED_FEATURES
-- 
cgit v0.10.2


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