RUBY-248 Verify query speed after failover

test/replica_sets/query_test.rb

@@ -27,6 +27,8 @@ class ReplicaSetQueryTest < Test::Unit::TestCase
       assert results.any? {|r| r['a'] == a}, "Could not find record for a => #{a}"
     end
 
+    puts "Benchmark before failover: #{benchmark_queries}"
+
     RS.kill_primary
 
     results = []
@@ -35,7 +37,15 @@ class ReplicaSetQueryTest < Test::Unit::TestCase
       [20, 30, 40].each do |a|
         assert results.any? {|r| r['a'] == a}, "Could not find record for a => #{a}"
       end
+
+    puts "Benchmark after failover: #{benchmark_queries}"
     end
   end
 
+  def benchmark_queries
+    t1 = Time.now
+    10000.times { @coll.find_one }
+    Time.now - t1
+  end
+
 end