Fix MiniTest name.

test/helper.rb

@@ -1,15 +1,13 @@
-require 'rubygems'
+require 'minitest/unit'
 require 'minitest/pride'
 require 'minitest/autorun'
 
 require 'connection_pool'
 
-class Minitest::Unit::TestCase
-
+class ConnectionPoolTest < MiniTest::Unit::TestCase
   def async_test(time=0.5)
     q = TimedQueue.new
     yield Proc.new { q << nil }
     q.timed_pop(time)
   end
-
 end

test/test_connection_pool.rb

@@ -1,8 +1,7 @@
 Thread.abort_on_exception = true
 require 'helper'
 
-class TestConnectionPool < Minitest::Test
-
+Class.new(ConnectionPoolTest) do
   class NetworkConnection
     def initialize
       @x = 0