Added replica set refresh test for threaded app.

test/replica_sets/refresh_with_threads_test.rb

@@ -0,0 +1,56 @@
+$:.unshift(File.join(File.dirname(__FILE__), '..', 'lib'))
+require './test/replica_sets/rs_test_helper'
+require 'benchmark'
+
+class ReplicaSetRefreshWithThreadsTest < Test::Unit::TestCase
+  include ReplicaSetTest
+
+  def setup
+    @conn = nil
+  end
+
+  def teardown
+    self.rs.restart_killed_nodes
+    @conn.close if @conn
+  end
+
+  def test_read_write_load_with_added_nodes
+    @conn = ReplSetConnection.new([self.rs.host, self.rs.ports[0]],
+                                  [self.rs.host, self.rs.ports[1]],
+                                  [self.rs.host, self.rs.ports[2]],
+                                  :refresh_interval => 2, :refresh_mode => :async,
+                                  :read => :secondary)
+    @duplicate = @conn[MONGO_TEST_DB]['duplicate']
+    @unique    = @conn[MONGO_TEST_DB]['unique']
+    @duplicate.insert("test" => "insert")
+    @duplicate.insert("test" => "update")
+    @unique.insert("test" => "insert")
+    @unique.insert("test" => "update")
+    @unique.create_index("test", :unique => true)
+
+    threads = []
+    100.times do
+      threads << Thread.new do
+        100.times do |i|
+          if i % 2 == 0
+            assert_raise Mongo::OperationFailure do
+              @unique.insert({"test" => "insert"}, :safe => true)
+            end
+          else
+            @duplicate.insert({"test" => "insert"}, :safe => true)
+          end
+        end
+        @conn.end_request
+      end
+    end
+
+    self.rs.add_node
+    sleep(4)
+    config = @conn['admin'].command({:ismaster => 1})
+
+    assert_equal 3, @conn.secondary_pools.length
+    assert_equal 3, @conn.secondaries.length
+
+    threads.each {|t| t.join }
+  end
+end

test/tools/repl_set_manager.rb

@@ -155,8 +155,8 @@ class ReplSetManager
   def add_node(n=nil)
     primary = get_node_with_state(1)
     con = get_connection(primary)
-    init_node(n || @mongods.length)
 
+    init_node(n || @mongods.length)
     config = con['local']['system.replset'].find_one
     @config['version'] = config['version'] + 1