From 895954ef91c974ceff829e0d06132853e87377ea Mon Sep 17 00:00:00 2001
From: ko1 <ko1@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Mon, 15 May 2017 07:02:33 +0000
Subject: add information for debugging.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@58723 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 test/rubygems/test_gem_gem_runner.rb | 33 ++++++++++++++++++++++++++-------
 1 file changed, 26 insertions(+), 7 deletions(-)

(limited to 'test')

diff --git a/test/rubygems/test_gem_gem_runner.rb b/test/rubygems/test_gem_gem_runner.rb
index b5d8581bea..0a1faa404a 100644
--- a/test/rubygems/test_gem_gem_runner.rb
+++ b/test/rubygems/test_gem_gem_runner.rb
@@ -1,17 +1,36 @@
 # frozen_string_literal: true
 require 'rubygems/test_case'
 begin
-  require 'rubygems/gem_runner'
-ensure
-  if $!
+  gem_home_files = lambda{
     if Dir.exist?(ENV["GEM_HOME"])
       require "find"
       ary = Find.find(ENV["GEM_HOME"]).to_a
-      raise <<eom
-GEM_HOME: #{ENV["GEM_HOME"]}
-contant: #{ary.inspect}
-eom
+    else
+      []
     end
+  }
+  prev_gem_home = ENV["GEM_HOME"]
+  prev_gem_home_files = gem_home_files.call
+  prev_threads = Thread.list.map{|e| e.inspect}
+
+  require 'rubygems/gem_runner'
+ensure
+  if $!
+    msg = <<eom
+***************
+PREV
+  GEM_HOME: #{prev_gem_home}
+  Files in GEM_HOME: #{prev_gem_home_files.inspect}
+  Threads: #{prev_threads.inspect}
+Current:
+  GEM_HOME: #{ENV["GEM_HOME"]}
+  Files in GEM_HOME: #{gem_home_files.call}
+  Threads: #{Thread.list.map{|e| e.inspect}.inspect}
+Exception: #{$!.message}
+eom
+    p $!.class
+    p $!.message.frozen?
+    raise $!.class, msg, $!.backtrace
   end
 end
 
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