1 files changed, 35 insertions, 0 deletions
diff --git a/test/unit/test_stats.rb b/test/unit/test_stats.rb
new file mode 100644
index 0000000..012c6a5
--- /dev/null
+++ b/test/unit/test_stats.rb
@@ -0,0 +1,35 @@
+# Copyright (c) 2005 Zed A. Shaw 
+# You can redistribute it and/or modify it under the same terms as Ruby.
+#
+# Additional work donated by contributors.  See http://mongrel.rubyforge.org/attributions.html 
+# for more information.
+
+require 'test/test_helper'
+
+class StatsTest < Test::Unit::TestCase
+
+  def test_sampling_speed
+    out = StringIO.new
+
+    s = Mongrel::Stats.new("test")
+    t = Mongrel::Stats.new("time")
+
+    100.times { s.sample(rand(20)); t.tick }
+
+    s.dump("FIRST", out)
+    t.dump("FIRST", out)
+    
+    old_mean = s.mean
+    old_sd = s.sd
+
+    s.reset
+    t.reset
+    100.times { s.sample(rand(30)); t.tick }
+    
+    s.dump("SECOND", out)
+    t.dump("SECOND", out)
+    assert_not_equal old_mean, s.mean
+    assert_not_equal old_mean, s.sd    
+  end
+
+end