* test: use require_relative.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@24878 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

test/drb/drbtest.rb

@@ -2,13 +2,7 @@ require 'test/unit'
 require 'drb/drb'
 require 'drb/extservm'
 require 'timeout'
-begin
+require_relative '../ruby/envutil'
-  loadpath = $:.dup
-  $:.replace($: | [File.expand_path("../ruby", File.dirname(__FILE__))])
-  require 'envutil'
-ensure
-  $:.replace(loadpath)
-end
 
 class DRbService
   @@manager = DRb::ExtServManager.new

test/openssl/test_pair.rb

@@ -7,10 +7,7 @@ require 'test/unit'
 if defined?(OpenSSL)
 
 require 'socket'
-dir = File.expand_path(__FILE__)
+require_relative '../ruby/ut_eof'
-2.times {dir = File.dirname(dir)}
-$:.replace([File.join(dir, "ruby")] | $:)
-require 'ut_eof'
 
 module SSLPair
   def server

test/openssl/test_ssl.rb

@@ -1,18 +1,12 @@
 begin
   require "openssl"
-  require File.join(File.dirname(__FILE__), "utils.rb")
+  require_relative "utils.rb"
 rescue LoadError
 end
 require "rbconfig"
 require "socket"
 require "test/unit"
-begin
+require_relative '../ruby/envutil'
-  loadpath = $:.dup
-  $:.replace($: | [File.expand_path("../ruby", File.dirname(__FILE__))])
-  require 'envutil'
-ensure
-  $:.replace(loadpath)
-end
 
 if defined?(OpenSSL)
 

test/rubygems/test_kernel.rb

@@ -4,7 +4,7 @@
 # See LICENSE.txt for permissions.
 #++
 
-require File.join(File.expand_path(File.dirname(__FILE__)), 'gemutilities')
+require_relative 'gemutilities'
 require 'rubygems/package'
 
 class TestKernel < RubyGemTestCase

test/stringio/test_stringio.rb

@@ -1,9 +1,6 @@
 require 'test/unit'
 require 'stringio'
-dir = File.expand_path(__FILE__)
+require_relative '../ruby/ut_eof'
-2.times {dir = File.dirname(dir)}
-$:.replace([File.join(dir, "ruby")] | $:)
-require 'ut_eof'
 
 class TestStringIO < Test::Unit::TestCase
   include TestEOF

test/test_syslog.rb

@@ -6,10 +6,6 @@
 # If in doubt, ask your admin.
 
 require 'test/unit'
-
-# Prepend current directory to load path for testing.
-$:.unshift('.')
-
 require 'syslog'
 
 class TestSyslog < Test::Unit::TestCase

test/webrick/utils.rb

@@ -1,10 +1,4 @@
-begin
+require_relative '../ruby/envutil'
-  loadpath = $:.dup
-  $:.replace($: | [File.expand_path("../ruby", File.dirname(__FILE__))])
-  require 'envutil'
-ensure
-  $:.replace(loadpath)
-end
 require "webrick"
 begin
   require "webrick/https"