diff -r 5652cdea25f5 -r 1f4cc8505308 dist/jars/luan-core-trunk.jar
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diff -r 5652cdea25f5 -r 1f4cc8505308 dist/jars/luan-logging-trunk.jar
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diff -r 5652cdea25f5 -r 1f4cc8505308 dist/jars/luan-lucene-trunk.jar
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diff -r 5652cdea25f5 -r 1f4cc8505308 dist/jars/luan-mail-trunk.jar
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diff -r 5652cdea25f5 -r 1f4cc8505308 dist/jars/luan-web-trunk.jar
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diff -r 5652cdea25f5 -r 1f4cc8505308 lucene/src/luan/modules/lucene/Ab_testing.luan
--- a/lucene/src/luan/modules/lucene/Ab_testing.luan	Thu Dec 11 03:12:26 2014 +0000
+++ b/lucene/src/luan/modules/lucene/Ab_testing.luan	Fri Dec 12 09:45:13 2014 +0000
@@ -2,8 +2,11 @@
 import "luan:Table"
 import "luan:Io"
 import "luan:web/Http"
+import "luan:logging/Logging"
 
 
+local logger = Logging.logger "Ab_testing"
+
 function of(index)
 
 	local ab_testing = {}
@@ -112,14 +115,15 @@
 	function ab_testing.to_doc(doc,values,tests)
 		tests = tests or ab_testing.test_map
 		if values == nil then
-			for _, test in ipairs(tests) do
-				doc[test.field] = test.values[Math.random(#test.values)]
-			end
-		else
-			for _, test in ipairs(tests) do
-				doc[test.field] = values[test.name]
+			values = {}
+			for _, test in pairs(tests) do
+				values[test.name] = test.values[Math.random(#test.values)]
 			end
 		end
+		for _, test in pairs(tests) do
+			doc[test.field] = values[test.name]
+		end
+		return values
 	end
 
 	function ab_testing.web_page(test_names)