+ test {ZSETs ZRANK augmented skip list stress testing} {
+ set err {}
+ $r del myzset
+ for {set k 0} {$k < 10000} {incr k} {
+ set i [expr {$k%1000}]
+ if {[expr rand()] < .2} {
+ $r zrem myzset $i
+ } else {
+ set score [expr rand()]
+ $r zadd myzset $score $i
+ }
+ set card [$r zcard myzset]
+ if {$card > 0} {
+ set index [randomInt $card]
+ set ele [lindex [$r zrange myzset $index $index] 0]
+ set rank [$r zrank myzset $ele]
+ if {$rank != $index} {
+ set err "$ele RANK is wrong! ($rank != $index)"
+ break
+ }
+ }
+ }
+ set _ $err
+ } {}
+