From 9678c37577facb441f3c636c0453eb7a651b2d7d Mon Sep 17 00:00:00 2001
From: antirez <antirez@gmail.com>
Date: Fri, 23 Dec 2011 09:34:06 +0100
Subject: [PATCH] Added regression test for ZUNIONSTORE creating NaN (github
 issue #264)

---
 tests/unit/type/zset.tcl | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/tests/unit/type/zset.tcl b/tests/unit/type/zset.tcl
index aa43f3bf..bab98854 100644
--- a/tests/unit/type/zset.tcl
+++ b/tests/unit/type/zset.tcl
@@ -518,6 +518,12 @@ start_server {tags {"zset"}} {
         r zinterstore set3 2 set1 set2
     } {0}
 
+    test {ZUNIONSTORE regression, should not create NaN in scores} {
+        r zadd z -inf neginf
+        r zunionstore out 1 z weights 0
+        r zrange out 0 -1 withscores
+    } {neginf 0}
+
     proc stressers {encoding} {
         if {$encoding == "ziplist"} {
             # Little extra to allow proper fuzzing in the sorting stresser
-- 
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