minor: test tweaks for windows

lib/mongo/connection.rb

@@ -297,15 +297,15 @@ module Mongo
     def checkin(socket)
       @connection_mutex.synchronize do
         @checked_out.delete(socket)
+        @queue.signal
       end
-      @queue.signal
       true
     end
 
     # Adds a new socket to the pool and checks it out.
     #
-    # This method is called exclusively from #obtain_socket;
-    # therefore, it runs within a mutex, as it must.
+    # This method is called exclusively from #checkout;
+    # therefore, it runs within a mutex.
     def checkout_new_socket
       begin
       socket = TCPSocket.new(@host, @port)
@@ -320,8 +320,8 @@ module Mongo
 
     # Checks out the first available socket from the pool.
     #
-    # This method is called exclusively from #obtain_socket;
-    # therefore, it runs within a mutex, as it must.
+    # This method is called exclusively from #checkout;
+    # therefore, it runs within a mutex.
     def checkout_existing_socket
       socket = (@sockets - @checked_out).first
       @checked_out << socket

test/test_threading.rb

@@ -4,7 +4,7 @@ class TestThreading < Test::Unit::TestCase
 
   include Mongo
 
-  @@db = Connection.new('localhost', 27017, :pool_size => 1, :timeout => 5).db('ruby-mongo-test')
+  @@db = Connection.new('localhost', 27017, :pool_size => 1, :timeout => 30).db('ruby-mongo-test')
   @@coll = @@db.collection('thread-test-collection')
 
   def set_up_safe_data