fix env leaks

* lib/rubygems/test_case.rb (setup, teardown): fix
  environment variable change leaks.

* test/cgi/update_env.rb: ditto.

* test/rake/test_rake_application_options.rb (setup, teardown):
  ditto.

* test/rake/test_rake_file_utils.rb (setup, teardown): ditto.

* test/rubygems/test_gem_request.rb (setup): add https_proxy.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@49950 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 8 insertions, 4 deletions

diff --git a/test/cgi/test_cgi_cookie.rb b/test/cgi/test_cgi_cookie.rb
index c1c6a30e70..eaf4ff1aa9 100644
--- a/test/cgi/test_cgi_cookie.rb
+++ b/test/cgi/test_cgi_cookie.rb
@@ -1,21 +1,25 @@
 require 'test/unit'
 require 'cgi'
 require 'stringio'
+require_relative 'update_env'
 
 
 class CGICookieTest < Test::Unit::TestCase
+  include UpdateEnv
 
 
   def setup
-    ENV['REQUEST_METHOD'] = 'GET'
+    @environ = {}
+    update_env(
+      'REQUEST_METHOD' => 'GET',
+      'SCRIPT_NAME' => nil,
+    )
     @str1="\xE3\x82\x86\xE3\x82\x93\xE3\x82\x86\xE3\x82\x93"
     @str1.force_encoding("UTF-8") if defined?(::Encoding)
   end
 
   def teardown
-    %W[REQUEST_METHOD SCRIPT_NAME].each do |name|
-      ENV.delete(name)
-    end
+    ENV.update(@environ)
   end