X-Git-Url: https://git.saurik.com/redis.git/blobdiff_plain/724a51b1a95b9e6a6937ac363e11df647829d4c6..4d16bb253c8807e45abcd776fcf6521c525a3f2b:/test-redis.tcl?ds=sidebyside

diff --git a/test-redis.tcl b/test-redis.tcl
index 68db9706..3b5900f9 100644
--- a/test-redis.tcl
+++ b/test-redis.tcl
@@ -1,12 +1,19 @@
-# TODO # test pipelining
+# test-redis.tcl
+# Redis test suite. Copyright (C) 2009 Salvatore Sanfilippo antirez@gmail.com
+# This softare is released under the BSD License. See the COPYING file for
+# more information.
 
-source client-libraries/tcl/redis.tcl
+set tcl_precision 17
+source redis.tcl
 
 set ::passed 0
 set ::failed 0
+set ::testnum 0
 
 proc test {name code okpattern} {
-    puts -nonewline [format "%-70s " $name]
+    incr ::testnum
+    if {$::testnum < $::first || $::testnum > $::last} return
+    puts -nonewline [format "%-70s " "#$::testnum $name"]
     flush stdout
     set retval [uplevel 1 $code]
     if {$okpattern eq $retval || [string match $okpattern $retval]} {
@@ -16,6 +23,12 @@ proc test {name code okpattern} {
         puts "!! ERROR expected\n'$okpattern'\nbut got\n'$retval'"
         incr ::failed
     }
+    if {$::traceleaks} {
+        if {![string match {*0 leaks*} [exec leaks redis-server]]} {
+            puts "--------- Test $::testnum LEAKED! --------"
+            exit 1
+        }
+    }
 }
 
 proc randstring {min max {type binary}} {
@@ -38,13 +51,158 @@ proc randstring {min max {type binary}} {
     return $output
 }
 
-proc main {server port} {
-    set r [redis $server $port]
+# Useful for some test
+proc zlistAlikeSort {a b} {
+    if {[lindex $a 0] > [lindex $b 0]} {return 1}
+    if {[lindex $a 0] < [lindex $b 0]} {return -1}
+    string compare [lindex $a 1] [lindex $b 1]
+}
+
+proc waitForBgsave r {
+    while 1 {
+        set i [$r info]
+        if {[string match {*bgsave_in_progress:1*} $i]} {
+            puts -nonewline "\nWaiting for background save to finish... "
+            flush stdout
+            after 1000
+        } else {
+            break
+        }
+    }
+}
+
+proc waitForBgrewriteaof r {
+    while 1 {
+        set i [$r info]
+        if {[string match {*bgrewriteaof_in_progress:1*} $i]} {
+            puts -nonewline "\nWaiting for background AOF rewrite to finish... "
+            flush stdout
+            after 1000
+        } else {
+            break
+        }
+    }
+}
+
+proc randomInt {max} {
+    expr {int(rand()*$max)}
+}
+
+proc randpath args {
+    set path [expr {int(rand()*[llength $args])}]
+    uplevel 1 [lindex $args $path]
+}
+
+proc randomValue {} {
+    randpath {
+        # Small enough to likely collide
+        randomInt 1000
+    } {
+        # 32 bit compressible signed/unsigned
+        randpath {randomInt 2000000000} {randomInt 4000000000}
+    } {
+        # 64 bit
+        randpath {randomInt 1000000000000}
+    } {
+        # Random string
+        randpath {randstring 0 256 alpha} \
+                {randstring 0 256 compr} \
+                {randstring 0 256 binary}
+    }
+}
+
+proc randomKey {} {
+    randpath {
+        # Small enough to likely collide
+        randomInt 1000
+    } {
+        # 32 bit compressible signed/unsigned
+        randpath {randomInt 2000000000} {randomInt 4000000000}
+    } {
+        # 64 bit
+        randpath {randomInt 1000000000000}
+    } {
+        # Random string
+        randpath {randstring 1 256 alpha} \
+                {randstring 1 256 compr}
+    }
+}
+
+proc createComplexDataset {r ops} {
+    for {set j 0} {$j < $ops} {incr j} {
+        set k [randomKey]
+        set f [randomValue]
+        set v [randomValue]
+        randpath {
+            set d [expr {rand()}]
+        } {
+            set d [expr {rand()}]
+        } {
+            set d [expr {rand()}]
+        } {
+            set d [expr {rand()}]
+        } {
+            set d [expr {rand()}]
+        } {
+            randpath {set d +inf} {set d -inf}
+        }
+        set t [$r type $k]
+
+        if {$t eq {none}} {
+            randpath {
+                $r set $k $v
+            } {
+                $r lpush $k $v
+            } {
+                $r sadd $k $v
+            } {
+                $r zadd $k $d $v
+            } {
+                $r hset $k $f $v
+            }
+            set t [$r type $k]
+        }
+
+        switch $t {
+            {string} {
+                # Nothing to do
+            }
+            {list} {
+                randpath {$r lpush $k $v} \
+                        {$r rpush $k $v} \
+                        {$r lrem $k 0 $v} \
+                        {$r rpop $k} \
+                        {$r lpop $k}
+            }
+            {set} {
+                randpath {$r sadd $k $v} \
+                        {$r srem $k $v}
+            }
+            {zset} {
+                randpath {$r zadd $k $d $v} \
+                        {$r zrem $k $v}
+            }
+            {hash} {
+                randpath {$r hset $k $f $v} \
+                        {$r hdel $k $f}
+            }
+        }
+    }
+}
+
+proc datasetDigest r {
+    $r debug digest
+}
+
+proc main {} {
+    set r [redis $::host $::port]
+    $r select 9
     set err ""
+    set res ""
 
     # The following AUTH test should be enabled only when requirepass
     # <PASSWORD> is set in redis.conf and redis-server was started with
-    # redis.conf as the first argument.  
+    # redis.conf as the first argument.
 
     #test {AUTH with requirepass in redis.conf} {
     #    $r auth foobared
@@ -60,6 +218,11 @@ proc main {server port} {
         $r get x
     } {foobar}
 
+    test {SET and GET an empty item} {
+        $r set x {}
+        $r get x
+    } {}
+
     test {DEL against a single item} {
         $r del x
         $r get x
@@ -98,20 +261,46 @@ proc main {server port} {
         $r get foo
     } [string repeat "abcd" 1000000]
 
+    test {Very big payload random access} {
+        set err {}
+        array set payload {}
+        for {set j 0} {$j < 100} {incr j} {
+            set size [expr 1+[randomInt 100000]]
+            set buf [string repeat "pl-$j" $size]
+            set payload($j) $buf
+            $r set bigpayload_$j $buf
+        }
+        for {set j 0} {$j < 1000} {incr j} {
+            set index [randomInt 100]
+            set buf [$r get bigpayload_$index]
+            if {$buf != $payload($index)} {
+                set err "Values differ: I set '$payload($index)' but I read back '$buf'"
+                break
+            }
+        }
+        unset payload
+        set _ $err
+    } {}
+
     test {SET 10000 numeric keys and access all them in reverse order} {
+        set err {}
         for {set x 0} {$x < 10000} {incr x} {
             $r set $x $x
         }
         set sum 0
         for {set x 9999} {$x >= 0} {incr x -1} {
-            incr sum [$r get $x]
+            set val [$r get $x]
+            if {$val ne $x} {
+                set err "Eleemnt at position $x is $val instead of $x"
+                break
+            }
         }
-        format $sum
-    } {49995000}
+        set _ $err
+    } {}
 
-    test {DBSIZE should be 10001 now} {
+    test {DBSIZE should be 10101 now} {
         $r dbsize
-    } {10001}
+    } {10101}
 
     test {INCR against non existing key} {
         set res {}
@@ -138,6 +327,19 @@ proc main {server port} {
         $r incrby novar 17179869184
     } {34359738368}
 
+    test {INCR fails against key with spaces (no integer encoded)} {
+        $r set novar "    11    "
+        catch {$r incr novar} err
+        format $err
+    } {ERR*}
+
+    test {INCR fails against a key holding a list} {
+        $r rpush mylist 1
+        catch {$r incr mylist} err
+        $r rpop mylist
+        format $err
+    } {ERR*}
+
     test {DECRBY over 32bit value with over 32bit increment, negative res} {
         $r set novar 17179869184
         $r decrby novar 17179869185
@@ -153,6 +355,13 @@ proc main {server port} {
         $r get novar2
     } {foobared}
 
+    test {SETNX will overwrite EXPIREing key} {
+        $r set x 10
+        $r expire x 10000
+        $r setnx x 20
+        $r get x
+    } {20}
+
     test {EXISTS} {
         set res {}
         $r set newkey test
@@ -186,14 +395,20 @@ proc main {server port} {
     } {1}
 
     test {Basic LPUSH, RPUSH, LLENGTH, LINDEX} {
-        $r lpush mylist a
-        $r lpush mylist b
-        $r rpush mylist c
-        set res [$r llen mylist]
+        set res [$r lpush mylist a]
+        append res [$r lpush mylist b]
+        append res [$r rpush mylist c]
+        append res [$r llen mylist]
+        append res [$r rpush anotherlist d]
+        append res [$r lpush anotherlist e]
+        append res [$r llen anotherlist]
         append res [$r lindex mylist 0]
         append res [$r lindex mylist 1]
         append res [$r lindex mylist 2]
-    } {3bac}
+        append res [$r lindex anotherlist 0]
+        append res [$r lindex anotherlist 1]
+        list $res [$r lindex mylist 100]
+    } {1233122baced {}}
 
     test {DEL a list} {
         $r del mylist
@@ -226,6 +441,19 @@ proc main {server port} {
         format $ok
     } {2000}
 
+    test {Check if the list is still ok after a DEBUG RELOAD} {
+        $r debug reload
+        set ok 0
+        for {set i 0} {$i < 1000} {incr i} {
+            set rint [expr int(rand()*1000)]
+            if {[$r lindex mylist $rint] eq $rint} {incr ok}
+            if {[$r lindex mylist [expr (-$rint)-1]] eq [expr 999-$rint]} {
+                incr ok
+            }
+        }
+        format $ok
+    } {2000}
+
     test {LLEN against non-list value error} {
         $r del mylist
         $r set mylist foobar
@@ -233,11 +461,19 @@ proc main {server port} {
         format $err
     } {ERR*}
 
+    test {LLEN against non existing key} {
+        $r llen not-a-key
+    } {0}
+
     test {LINDEX against non-list value error} {
         catch {$r lindex mylist 0} err
         format $err
     } {ERR*}
 
+    test {LINDEX against non existing key} {
+        $r lindex not-a-key 10
+    } {}
+
     test {LPUSH against non-list value error} {
         catch {$r lpush mylist 0} err
         format $err
@@ -248,6 +484,78 @@ proc main {server port} {
         format $err
     } {ERR*}
 
+    test {RPOPLPUSH base case} {
+        $r del mylist
+        $r rpush mylist a
+        $r rpush mylist b
+        $r rpush mylist c
+        $r rpush mylist d
+        set v1 [$r rpoplpush mylist newlist]
+        set v2 [$r rpoplpush mylist newlist]
+        set l1 [$r lrange mylist 0 -1]
+        set l2 [$r lrange newlist 0 -1]
+        list $v1 $v2 $l1 $l2
+    } {d c {a b} {c d}}
+
+    test {RPOPLPUSH with the same list as src and dst} {
+        $r del mylist
+        $r rpush mylist a
+        $r rpush mylist b
+        $r rpush mylist c
+        set l1 [$r lrange mylist 0 -1]
+        set v [$r rpoplpush mylist mylist]
+        set l2 [$r lrange mylist 0 -1]
+        list $l1 $v $l2
+    } {{a b c} c {c a b}}
+
+    test {RPOPLPUSH target list already exists} {
+        $r del mylist
+        $r del newlist
+        $r rpush mylist a
+        $r rpush mylist b
+        $r rpush mylist c
+        $r rpush mylist d
+        $r rpush newlist x
+        set v1 [$r rpoplpush mylist newlist]
+        set v2 [$r rpoplpush mylist newlist]
+        set l1 [$r lrange mylist 0 -1]
+        set l2 [$r lrange newlist 0 -1]
+        list $v1 $v2 $l1 $l2
+    } {d c {a b} {c d x}}
+
+    test {RPOPLPUSH against non existing key} {
+        $r del mylist
+        $r del newlist
+        set v1 [$r rpoplpush mylist newlist]
+        list $v1 [$r exists mylist] [$r exists newlist]
+    } {{} 0 0}
+
+    test {RPOPLPUSH against non list src key} {
+        $r del mylist
+        $r del newlist
+        $r set mylist x
+        catch {$r rpoplpush mylist newlist} err
+        list [$r type mylist] [$r exists newlist] [string range $err 0 2]
+    } {string 0 ERR}
+
+    test {RPOPLPUSH against non list dst key} {
+        $r del mylist
+        $r del newlist
+        $r rpush mylist a
+        $r rpush mylist b
+        $r rpush mylist c
+        $r rpush mylist d
+        $r set newlist x
+        catch {$r rpoplpush mylist newlist} err
+        list [$r lrange mylist 0 -1] [$r type newlist] [string range $err 0 2]
+    } {{a b c d} string ERR}
+
+    test {RPOPLPUSH against non existing src key} {
+        $r del mylist
+        $r del newlist
+        $r rpoplpush mylist newlist
+    } {}
+
     test {RENAME basic usage} {
         $r set mykey hello
         $r rename mykey mykey1
@@ -305,47 +613,47 @@ proc main {server port} {
     } {0}
 
     test {DEL all keys again (DB 1)} {
-        $r select 1
+        $r select 10
         foreach key [$r keys *] {
             $r del $key
         }
         set res [$r dbsize]
-        $r select 0
+        $r select 9
         format $res
     } {0}
 
     test {MOVE basic usage} {
         $r set mykey foobar
-        $r move mykey 1
+        $r move mykey 10
         set res {}
         lappend res [$r exists mykey]
         lappend res [$r dbsize]
-        $r select 1
+        $r select 10
         lappend res [$r get mykey]
         lappend res [$r dbsize]
-        $r select 0
+        $r select 9
         format $res
     } [list 0 0 foobar 1]
 
     test {MOVE against key existing in the target DB} {
         $r set mykey hello
-        $r move mykey 1
+        $r move mykey 10
     } {0}
 
     test {SET/GET keys in different DBs} {
         $r set a hello
         $r set b world
-        $r select 1
+        $r select 10
         $r set a foo
         $r set b bared
-        $r select 0
+        $r select 9
         set res {}
         lappend res [$r get a]
         lappend res [$r get b]
-        $r select 1
+        $r select 10
         lappend res [$r get a]
         lappend res [$r get b]
-        $r select 0
+        $r select 9
         format $res
     } {hello world foo bared}
 
@@ -411,7 +719,36 @@ proc main {server port} {
         $r lrange mylist 0 -1
     } {99 98 97 96 95}
 
+    test {LTRIM stress testing} {
+        set mylist {}
+        set err {}
+        for {set i 0} {$i < 20} {incr i} {
+            lappend mylist $i
+        }
+
+        for {set j 0} {$j < 100} {incr j} {
+            # Fill the list
+            $r del mylist
+            for {set i 0} {$i < 20} {incr i} {
+                $r rpush mylist $i
+            }
+            # Trim at random
+            set a [randomInt 20]
+            set b [randomInt 20]
+            $r ltrim mylist $a $b
+            if {[$r lrange mylist 0 -1] ne [lrange $mylist $a $b]} {
+                set err "[$r lrange mylist 0 -1] != [lrange $mylist $a $b]"
+                break
+            }
+        }
+        set _ $err
+    } {}
+
     test {LSET} {
+        $r del mylist
+        foreach x {99 98 97 96 95} {
+            $r rpush mylist $x
+        }
         $r lset mylist 1 foo
         $r lset mylist -1 bar
         $r lrange mylist 0 -1
@@ -470,17 +807,28 @@ proc main {server port} {
     test {SUNION with two sets} {
         lsort [$r sunion set1 set2]
     } [lsort -uniq "[$r smembers set1] [$r smembers set2]"]
-    
+
     test {SINTERSTORE with two sets} {
         $r sinterstore setres set1 set2
         lsort [$r smembers setres]
     } {995 996 997 998 999}
 
+    test {SINTERSTORE with two sets, after a DEBUG RELOAD} {
+        $r debug reload
+        $r sinterstore setres set1 set2
+        lsort [$r smembers setres]
+    } {995 996 997 998 999}
+
     test {SUNIONSTORE with two sets} {
         $r sunionstore setres set1 set2
         lsort [$r smembers setres]
     } [lsort -uniq "[$r smembers set1] [$r smembers set2]"]
 
+    test {SUNIONSTORE against non existing keys} {
+        $r set setres xxx
+        list [$r sunionstore setres foo111 bar222] [$r exists xxx]
+    } {0 0}
+
     test {SINTER against three sets} {
         $r sadd set3 999
         $r sadd set3 995
@@ -524,26 +872,59 @@ proc main {server port} {
     } {{1 2 3} 0}
 
     test {SAVE - make sure there are all the types as values} {
+        # Wait for a background saving in progress to terminate
+        waitForBgsave $r
         $r lpush mysavelist hello
         $r lpush mysavelist world
         $r set myemptykey {}
         $r set mynormalkey {blablablba}
+        $r zadd mytestzset 10 a
+        $r zadd mytestzset 20 b
+        $r zadd mytestzset 30 c
         $r save
     } {OK}
-    
-    test {Create a random list} {
+
+    test {SRANDMEMBER} {
+        $r del myset
+        $r sadd myset a
+        $r sadd myset b
+        $r sadd myset c
+        unset -nocomplain myset
+        array set myset {}
+        for {set i 0} {$i < 100} {incr i} {
+            set myset([$r srandmember myset]) 1
+        }
+        lsort [array names myset]
+    } {a b c}
+
+    test {SORT ALPHA against integer encoded strings} {
+        $r del mylist
+        $r lpush mylist 2
+        $r lpush mylist 1
+        $r lpush mylist 3
+        $r lpush mylist 10
+        $r sort mylist alpha
+    } {1 10 2 3}
+
+    test {Create a random list and a random set} {
         set tosort {}
         array set seenrand {}
         for {set i 0} {$i < 10000} {incr i} {
             while 1 {
                 # Make sure all the weights are different because
                 # Redis does not use a stable sort but Tcl does.
-                set rint [expr int(rand()*1000000)]
+                randpath {
+                    set rint [expr int(rand()*1000000)]
+                } {
+                    set rint [expr rand()]
+                }
                 if {![info exists seenrand($rint)]} break
             }
             set seenrand($rint) x
             $r lpush tosort $i
+            $r sadd tosort-set $i
             $r set weight_$i $rint
+            $r hset wobj_$i weight $rint
             lappend tosort [list $i $rint]
         }
         set sorted [lsort -index 1 -real $tosort]
@@ -558,6 +939,46 @@ proc main {server port} {
         $r sort tosort {BY weight_*}
     } $res
 
+    test {SORT with BY (hash field) against the newly created list} {
+        $r sort tosort {BY wobj_*->weight}
+    } $res
+
+    test {SORT with GET (key+hash) with sanity check of each element (list)} {
+        set err {}
+        set l1 [$r sort tosort GET # GET weight_*]
+        set l2 [$r sort tosort GET # GET wobj_*->weight]
+        foreach {id1 w1} $l1 {id2 w2} $l2 {
+            set realweight [$r get weight_$id1]
+            if {$id1 != $id2} {
+                set err "ID mismatch $id1 != $id2"
+                break
+            }
+            if {$realweight != $w1 || $realweight != $w2} {
+                set err "Weights mismatch! w1: $w1 w2: $w2 real: $realweight"
+                break
+            }
+        }
+        set _ $err
+    } {}
+
+    test {SORT with BY, but against the newly created set} {
+        $r sort tosort-set {BY weight_*}
+    } $res
+
+    test {SORT with BY (hash field), but against the newly created set} {
+        $r sort tosort-set {BY wobj_*->weight}
+    } $res
+
+    test {SORT with BY and STORE against the newly created list} {
+        $r sort tosort {BY weight_*} store sort-res
+        $r lrange sort-res 0 -1
+    } $res
+
+    test {SORT with BY (hash field) and STORE against the newly created list} {
+        $r sort tosort {BY wobj_*->weight} store sort-res
+        $r lrange sort-res 0 -1
+    } $res
+
     test {SORT direct, numeric, against the newly created list} {
         $r sort tosort
     } [lsort -integer $res]
@@ -577,6 +998,17 @@ proc main {server port} {
         format {}
     } {}
 
+    test {SORT speed, as above but against hash field} {
+        set start [clock clicks -milliseconds]
+        for {set i 0} {$i < 100} {incr i} {
+            set sorted [$r sort tosort {BY wobj_*->weight LIMIT 0 10}]
+        }
+        set elapsed [expr [clock clicks -milliseconds]-$start]
+        puts -nonewline "\n  Average time to sort: [expr double($elapsed)/100] milliseconds "
+        flush stdout
+        format {}
+    } {}
+
     test {SORT speed, sorting 10000 elements list directly, 100 times} {
         set start [clock clicks -milliseconds]
         for {set i 0} {$i < 100} {incr i} {
@@ -607,8 +1039,21 @@ proc main {server port} {
         $r sort mylist
     } [lsort -real {1.1 5.10 3.10 7.44 2.1 5.75 6.12 0.25 1.15}]
 
+    test {SORT with GET #} {
+        $r del mylist
+        $r lpush mylist 1
+        $r lpush mylist 2
+        $r lpush mylist 3
+        $r mset weight_1 10 weight_2 5 weight_3 30
+        $r sort mylist BY weight_* GET #
+    } {2 1 3}
+
+    test {SORT with constant GET} {
+        $r sort mylist GET foo
+    } {{} {} {}}
+
     test {LREM, remove all the occurrences} {
-        $r flushall
+        $r flushdb
         $r rpush mylist foo
         $r rpush mylist bar
         $r rpush mylist foobar
@@ -632,7 +1077,7 @@ proc main {server port} {
     } {{foobar foobared zap test foo} 0}
 
     test {LREM, starting from tail with negative count} {
-        $r flushall
+        $r flushdb
         $r rpush mylist foo
         $r rpush mylist bar
         $r rpush mylist foobar
@@ -660,7 +1105,7 @@ proc main {server port} {
     } {2}
 
     test {MGET} {
-        $r flushall
+        $r flushdb
         $r set foo BAR
         $r set bar FOO
         $r mget foo bar
@@ -677,7 +1122,7 @@ proc main {server port} {
     } {BAR {} FOO {}}
 
     test {RANDOMKEY} {
-        $r flushall
+        $r flushdb
         $r set foo x
         $r set bar y
         set foo_seen 0
@@ -695,12 +1140,12 @@ proc main {server port} {
     } {1 1}
 
     test {RANDOMKEY against empty DB} {
-        $r flushall
+        $r flushdb
         $r randomkey
     } {}
 
     test {RANDOMKEY regression 1} {
-        $r flushall
+        $r flushdb
         $r set x 10
         $r del x
         $r randomkey
@@ -750,44 +1195,1052 @@ proc main {server port} {
         format $err
     } {ERR*}
 
+    test {MSET base case} {
+        $r mset x 10 y "foo bar" z "x x x x x x x\n\n\r\n"
+        $r mget x y z
+    } [list 10 {foo bar} "x x x x x x x\n\n\r\n"]
+
+    test {MSET wrong number of args} {
+        catch {$r mset x 10 y "foo bar" z} err
+        format $err
+    } {*wrong number*}
+
+    test {MSETNX with already existent key} {
+        list [$r msetnx x1 xxx y2 yyy x 20] [$r exists x1] [$r exists y2]
+    } {0 0 0}
+
+    test {MSETNX with not existing keys} {
+        list [$r msetnx x1 xxx y2 yyy] [$r get x1] [$r get y2]
+    } {1 xxx yyy}
+
+    test {MSETNX should remove all the volatile keys even on failure} {
+        $r mset x 1 y 2 z 3
+        $r expire y 10000
+        $r expire z 10000
+        list [$r msetnx x A y B z C] [$r mget x y z]
+    } {0 {1 {} {}}}
+
+    test {ZSET basic ZADD and score update} {
+        $r zadd ztmp 10 x
+        $r zadd ztmp 20 y
+        $r zadd ztmp 30 z
+        set aux1 [$r zrange ztmp 0 -1]
+        $r zadd ztmp 1 y
+        set aux2 [$r zrange ztmp 0 -1]
+        list $aux1 $aux2
+    } {{x y z} {y x z}}
+
+    test {ZCARD basics} {
+        $r zcard ztmp
+    } {3}
+
+    test {ZCARD non existing key} {
+        $r zcard ztmp-blabla
+    } {0}
+
+    test {ZRANK basics} {
+        $r zadd zranktmp 10 x
+        $r zadd zranktmp 20 y
+        $r zadd zranktmp 30 z
+        list [$r zrank zranktmp x] [$r zrank zranktmp y] [$r zrank zranktmp z]
+    } {0 1 2}
+
+    test {ZREVRANK basics} {
+        list [$r zrevrank zranktmp x] [$r zrevrank zranktmp y] [$r zrevrank zranktmp z]
+    } {2 1 0}
+
+    test {ZRANK - after deletion} {
+        $r zrem zranktmp y
+        list [$r zrank zranktmp x] [$r zrank zranktmp z]
+    } {0 1}
+
+    test {ZSCORE} {
+        set aux {}
+        set err {}
+        for {set i 0} {$i < 1000} {incr i} {
+            set score [expr rand()]
+            lappend aux $score
+            $r zadd zscoretest $score $i
+        }
+        for {set i 0} {$i < 1000} {incr i} {
+            if {[$r zscore zscoretest $i] != [lindex $aux $i]} {
+                set err "Expected score was [lindex $aux $i] but got [$r zscore zscoretest $i] for element $i"
+                break
+            }
+        }
+        set _ $err
+    } {}
+
+    test {ZSCORE after a DEBUG RELOAD} {
+        set aux {}
+        set err {}
+        $r del zscoretest
+        for {set i 0} {$i < 1000} {incr i} {
+            set score [expr rand()]
+            lappend aux $score
+            $r zadd zscoretest $score $i
+        }
+        $r debug reload
+        for {set i 0} {$i < 1000} {incr i} {
+            if {[$r zscore zscoretest $i] != [lindex $aux $i]} {
+                set err "Expected score was [lindex $aux $i] but got [$r zscore zscoretest $i] for element $i"
+                break
+            }
+        }
+        set _ $err
+    } {}
+
+    test {ZRANGE and ZREVRANGE basics} {
+        list [$r zrange ztmp 0 -1] [$r zrevrange ztmp 0 -1] \
+            [$r zrange ztmp 1 -1] [$r zrevrange ztmp 1 -1]
+    } {{y x z} {z x y} {x z} {x y}}
+
+    test {ZRANGE WITHSCORES} {
+        $r zrange ztmp 0 -1 withscores
+    } {y 1 x 10 z 30}
+
+    test {ZSETs stress tester - sorting is working well?} {
+        set delta 0
+        for {set test 0} {$test < 2} {incr test} {
+            unset -nocomplain auxarray
+            array set auxarray {}
+            set auxlist {}
+            $r del myzset
+            for {set i 0} {$i < 1000} {incr i} {
+                if {$test == 0} {
+                    set score [expr rand()]
+                } else {
+                    set score [expr int(rand()*10)]
+                }
+                set auxarray($i) $score
+                $r zadd myzset $score $i
+                # Random update
+                if {[expr rand()] < .2} {
+                    set j [expr int(rand()*1000)]
+                    if {$test == 0} {
+                        set score [expr rand()]
+                    } else {
+                        set score [expr int(rand()*10)]
+                    }
+                    set auxarray($j) $score
+                    $r zadd myzset $score $j
+                }
+            }
+            foreach {item score} [array get auxarray] {
+                lappend auxlist [list $score $item]
+            }
+            set sorted [lsort -command zlistAlikeSort $auxlist]
+            set auxlist {}
+            foreach x $sorted {
+                lappend auxlist [lindex $x 1]
+            }
+            set fromredis [$r zrange myzset 0 -1]
+            set delta 0
+            for {set i 0} {$i < [llength $fromredis]} {incr i} {
+                if {[lindex $fromredis $i] != [lindex $auxlist $i]} {
+                    incr delta
+                }
+            }
+        }
+        format $delta
+    } {0}
+
+    test {ZINCRBY - can create a new sorted set} {
+        $r del zset
+        $r zincrby zset 1 foo
+        list [$r zrange zset 0 -1] [$r zscore zset foo]
+    } {foo 1}
+
+    test {ZINCRBY - increment and decrement} {
+        $r zincrby zset 2 foo
+        $r zincrby zset 1 bar
+        set v1 [$r zrange zset 0 -1]
+        $r zincrby zset 10 bar
+        $r zincrby zset -5 foo
+        $r zincrby zset -5 bar
+        set v2 [$r zrange zset 0 -1]
+        list $v1 $v2 [$r zscore zset foo] [$r zscore zset bar]
+    } {{bar foo} {foo bar} -2 6}
+
+    test {ZRANGEBYSCORE and ZCOUNT basics} {
+        $r del zset
+        $r zadd zset 1 a
+        $r zadd zset 2 b
+        $r zadd zset 3 c
+        $r zadd zset 4 d
+        $r zadd zset 5 e
+        list [$r zrangebyscore zset 2 4] [$r zrangebyscore zset (2 (4] \
+             [$r zcount zset 2 4] [$r zcount zset (2 (4]
+    } {{b c d} c 3 1}
+
+    test {ZRANGEBYSCORE withscores} {
+        $r del zset
+        $r zadd zset 1 a
+        $r zadd zset 2 b
+        $r zadd zset 3 c
+        $r zadd zset 4 d
+        $r zadd zset 5 e
+        $r zrangebyscore zset 2 4 withscores
+    } {b 2 c 3 d 4}
+
+    test {ZRANGEBYSCORE fuzzy test, 100 ranges in 1000 elements sorted set} {
+        set err {}
+        $r del zset
+        for {set i 0} {$i < 1000} {incr i} {
+            $r zadd zset [expr rand()] $i
+        }
+        for {set i 0} {$i < 100} {incr i} {
+            set min [expr rand()]
+            set max [expr rand()]
+            if {$min > $max} {
+                set aux $min
+                set min $max
+                set max $aux
+            }
+            set low [$r zrangebyscore zset -inf $min]
+            set ok [$r zrangebyscore zset $min $max]
+            set high [$r zrangebyscore zset $max +inf]
+            set lowx [$r zrangebyscore zset -inf ($min]
+            set okx [$r zrangebyscore zset ($min ($max]
+            set highx [$r zrangebyscore zset ($max +inf]
+
+            if {[$r zcount zset -inf $min] != [llength $low]} {
+                append err "Error, len does not match zcount\n"
+            }
+            if {[$r zcount zset $min $max] != [llength $ok]} {
+                append err "Error, len does not match zcount\n"
+            }
+            if {[$r zcount zset $max +inf] != [llength $high]} {
+                append err "Error, len does not match zcount\n"
+            }
+            if {[$r zcount zset -inf ($min] != [llength $lowx]} {
+                append err "Error, len does not match zcount\n"
+            }
+            if {[$r zcount zset ($min ($max] != [llength $okx]} {
+                append err "Error, len does not match zcount\n"
+            }
+            if {[$r zcount zset ($max +inf] != [llength $highx]} {
+                append err "Error, len does not match zcount\n"
+            }
+
+            foreach x $low {
+                set score [$r zscore zset $x]
+                if {$score > $min} {
+                    append err "Error, score for $x is $score > $min\n"
+                }
+            }
+            foreach x $lowx {
+                set score [$r zscore zset $x]
+                if {$score >= $min} {
+                    append err "Error, score for $x is $score >= $min\n"
+                }
+            }
+            foreach x $ok {
+                set score [$r zscore zset $x]
+                if {$score < $min || $score > $max} {
+                    append err "Error, score for $x is $score outside $min-$max range\n"
+                }
+            }
+            foreach x $okx {
+                set score [$r zscore zset $x]
+                if {$score <= $min || $score >= $max} {
+                    append err "Error, score for $x is $score outside $min-$max open range\n"
+                }
+            }
+            foreach x $high {
+                set score [$r zscore zset $x]
+                if {$score < $max} {
+                    append err "Error, score for $x is $score < $max\n"
+                }
+            }
+            foreach x $highx {
+                set score [$r zscore zset $x]
+                if {$score <= $max} {
+                    append err "Error, score for $x is $score <= $max\n"
+                }
+            }
+        }
+        set _ $err
+    } {}
+
+    test {ZRANGEBYSCORE with LIMIT} {
+        $r del zset
+        $r zadd zset 1 a
+        $r zadd zset 2 b
+        $r zadd zset 3 c
+        $r zadd zset 4 d
+        $r zadd zset 5 e
+        list \
+            [$r zrangebyscore zset 0 10 LIMIT 0 2] \
+            [$r zrangebyscore zset 0 10 LIMIT 2 3] \
+            [$r zrangebyscore zset 0 10 LIMIT 2 10] \
+            [$r zrangebyscore zset 0 10 LIMIT 20 10]
+    } {{a b} {c d e} {c d e} {}}
+
+    test {ZRANGEBYSCORE with LIMIT and withscores} {
+        $r del zset
+        $r zadd zset 10 a
+        $r zadd zset 20 b
+        $r zadd zset 30 c
+        $r zadd zset 40 d
+        $r zadd zset 50 e
+        $r zrangebyscore zset 20 50 LIMIT 2 3 withscores
+    } {d 40 e 50}
+
+    test {ZREMRANGEBYSCORE basics} {
+        $r del zset
+        $r zadd zset 1 a
+        $r zadd zset 2 b
+        $r zadd zset 3 c
+        $r zadd zset 4 d
+        $r zadd zset 5 e
+        list [$r zremrangebyscore zset 2 4] [$r zrange zset 0 -1]
+    } {3 {a e}}
+
+    test {ZREMRANGEBYSCORE from -inf to +inf} {
+        $r del zset
+        $r zadd zset 1 a
+        $r zadd zset 2 b
+        $r zadd zset 3 c
+        $r zadd zset 4 d
+        $r zadd zset 5 e
+        list [$r zremrangebyscore zset -inf +inf] [$r zrange zset 0 -1]
+    } {5 {}}
+
+    test {ZREMRANGEBYRANK basics} {
+        $r del zset
+        $r zadd zset 1 a
+        $r zadd zset 2 b
+        $r zadd zset 3 c
+        $r zadd zset 4 d
+        $r zadd zset 5 e
+        list [$r zremrangebyrank zset 1 3] [$r zrange zset 0 -1]
+    } {3 {a e}}
+
+    test {ZUNION against non-existing key doesn't set destination} {
+      $r del zseta
+      list [$r zunion dst_key 1 zseta] [$r exists dst_key]
+    } {0 0}
+
+    test {ZUNION basics} {
+        $r del zseta zsetb zsetc
+        $r zadd zseta 1 a
+        $r zadd zseta 2 b
+        $r zadd zseta 3 c
+        $r zadd zsetb 1 b
+        $r zadd zsetb 2 c
+        $r zadd zsetb 3 d
+        list [$r zunion zsetc 2 zseta zsetb] [$r zrange zsetc 0 -1 withscores]
+    } {4 {a 1 b 3 d 3 c 5}}
+
+    test {ZUNION with weights} {
+        list [$r zunion zsetc 2 zseta zsetb weights 2 3] [$r zrange zsetc 0 -1 withscores]
+    } {4 {a 2 b 7 d 9 c 12}}
+
+    test {ZUNION with AGGREGATE MIN} {
+        list [$r zunion zsetc 2 zseta zsetb aggregate min] [$r zrange zsetc 0 -1 withscores]
+    } {4 {a 1 b 1 c 2 d 3}}
+
+    test {ZUNION with AGGREGATE MAX} {
+        list [$r zunion zsetc 2 zseta zsetb aggregate max] [$r zrange zsetc 0 -1 withscores]
+    } {4 {a 1 b 2 c 3 d 3}}
+
+    test {ZINTER basics} {
+        list [$r zinter zsetc 2 zseta zsetb] [$r zrange zsetc 0 -1 withscores]
+    } {2 {b 3 c 5}}
+
+    test {ZINTER with weights} {
+        list [$r zinter zsetc 2 zseta zsetb weights 2 3] [$r zrange zsetc 0 -1 withscores]
+    } {2 {b 7 c 12}}
+
+    test {ZINTER with AGGREGATE MIN} {
+        list [$r zinter zsetc 2 zseta zsetb aggregate min] [$r zrange zsetc 0 -1 withscores]
+    } {2 {b 1 c 2}}
+
+    test {ZINTER with AGGREGATE MAX} {
+        list [$r zinter zsetc 2 zseta zsetb aggregate max] [$r zrange zsetc 0 -1 withscores]
+    } {2 {b 2 c 3}}
+
+    test {SORT against sorted sets} {
+        $r del zset
+        $r zadd zset 1 a
+        $r zadd zset 5 b
+        $r zadd zset 2 c
+        $r zadd zset 10 d
+        $r zadd zset 3 e
+        $r sort zset alpha desc
+    } {e d c b a}
+
+    test {Sorted sets +inf and -inf handling} {
+        $r del zset
+        $r zadd zset -100 a
+        $r zadd zset 200 b
+        $r zadd zset -300 c
+        $r zadd zset 1000000 d
+        $r zadd zset +inf max
+        $r zadd zset -inf min
+        $r zrange zset 0 -1
+    } {min c a b d max}
+
+    test {HSET/HLEN - Small hash creation} {
+        array set smallhash {}
+        for {set i 0} {$i < 8} {incr i} {
+            set key [randstring 0 8 alpha]
+            set val [randstring 0 8 alpha]
+            if {[info exists smallhash($key)]} {
+                incr i -1
+                continue
+            }
+            $r hset smallhash $key $val
+            set smallhash($key) $val
+        }
+        list [$r hlen smallhash]
+    } {8}
+
+    test {Is the small hash encoded with a zipmap?} {
+        $r debug object smallhash
+    } {*zipmap*}
+
+    test {HSET/HLEN - Big hash creation} {
+        array set bighash {}
+        for {set i 0} {$i < 1024} {incr i} {
+            set key [randstring 0 8 alpha]
+            set val [randstring 0 8 alpha]
+            if {[info exists bighash($key)]} {
+                incr i -1
+                continue
+            }
+            $r hset bighash $key $val
+            set bighash($key) $val
+        }
+        list [$r hlen bighash]
+    } {1024}
+
+    test {Is the big hash encoded with a zipmap?} {
+        $r debug object bighash
+    } {*hashtable*}
+
+    test {HGET against the small hash} {
+        set err {}
+        foreach k [array names smallhash *] {
+            if {$smallhash($k) ne [$r hget smallhash $k]} {
+                set err "$smallhash($k) != [$r hget smallhash $k]"
+                break
+            }
+        }
+        set _ $err
+    } {}
+
+    test {HGET against the big hash} {
+        set err {}
+        foreach k [array names bighash *] {
+            if {$bighash($k) ne [$r hget bighash $k]} {
+                set err "$bighash($k) != [$r hget bighash $k]"
+                break
+            }
+        }
+        set _ $err
+    } {}
+
+    test {HGET against non existing key} {
+        set rv {}
+        lappend rv [$r hget smallhash __123123123__]
+        lappend rv [$r hget bighash __123123123__]
+        set _ $rv
+    } {{} {}}
+
+    test {HSET in update and insert mode} {
+        set rv {}
+        set k [lindex [array names smallhash *] 0]
+        lappend rv [$r hset smallhash $k newval1]
+        set smallhash($k) newval1
+        lappend rv [$r hget smallhash $k]
+        lappend rv [$r hset smallhash __foobar123__ newval]
+        set k [lindex [array names bighash *] 0]
+        lappend rv [$r hset bighash $k newval2]
+        set bighash($k) newval2
+        lappend rv [$r hget bighash $k]
+        lappend rv [$r hset bighash __foobar123__ newval]
+        lappend rv [$r hdel smallhash __foobar123__]
+        lappend rv [$r hdel bighash __foobar123__]
+        set _ $rv
+    } {0 newval1 1 0 newval2 1 1 1}
+
+    test {HSETNX target key missing - small hash} {
+        $r hsetnx smallhash __123123123__ foo
+        $r hget smallhash __123123123__
+    } {foo}
+
+    test {HSETNX target key exists - small hash} {
+        $r hsetnx smallhash __123123123__ bar
+        set result [$r hget smallhash __123123123__]
+        $r hdel smallhash __123123123__
+        set _ $result
+    } {foo}
+
+    test {HSETNX target key missing - big hash} {
+        $r hsetnx bighash __123123123__ foo
+        $r hget bighash __123123123__
+    } {foo}
+
+    test {HSETNX target key exists - big hash} {
+        $r hsetnx bighash __123123123__ bar
+        set result [$r hget bighash __123123123__]
+        $r hdel bighash __123123123__
+        set _ $result
+    } {foo}
+
+    test {HMSET wrong number of args} {
+        catch {$r hmset smallhash key1 val1 key2} err
+        format $err
+    } {*wrong number*}
+
+    test {HMSET - small hash} {
+        set args {}
+        foreach {k v} [array get smallhash] {
+            set newval [randstring 0 8 alpha]
+            set smallhash($k) $newval
+            lappend args $k $newval
+        }
+        $r hmset smallhash {*}$args
+    } {OK}
+
+    test {HMSET - big hash} {
+        set args {}
+        foreach {k v} [array get bighash] {
+            set newval [randstring 0 8 alpha]
+            set bighash($k) $newval
+            lappend args $k $newval
+        }
+        $r hmset bighash {*}$args
+    } {OK}
+
+    test {HMGET against non existing key and fields} {
+        set rv {}
+        lappend rv [$r hmget doesntexist __123123123__ __456456456__]
+        lappend rv [$r hmget smallhash __123123123__ __456456456__]
+        lappend rv [$r hmget bighash __123123123__ __456456456__]
+        set _ $rv
+    } {{{} {}} {{} {}} {{} {}}}
+
+    test {HMGET - small hash} {
+        set keys {}
+        set vals {}
+        foreach {k v} [array get smallhash] {
+            lappend keys $k
+            lappend vals $v
+        }
+        set err {}
+        set result [$r hmget smallhash {*}$keys]
+        if {$vals ne $result} {
+            set err "$vals != $result"
+            break
+        }
+        set _ $err
+    } {}
+
+    test {HMGET - big hash} {
+        set keys {}
+        set vals {}
+        foreach {k v} [array get bighash] {
+            lappend keys $k
+            lappend vals $v
+        }
+        set err {}
+        set result [$r hmget bighash {*}$keys]
+        if {$vals ne $result} {
+            set err "$vals != $result"
+            break
+        }
+        set _ $err
+    } {}
+
+    test {HKEYS - small hash} {
+        lsort [$r hkeys smallhash]
+    } [lsort [array names smallhash *]]
+
+    test {HKEYS - big hash} {
+        lsort [$r hkeys bighash]
+    } [lsort [array names bighash *]]
+
+    test {HVALS - small hash} {
+        set vals {}
+        foreach {k v} [array get smallhash] {
+            lappend vals $v
+        }
+        set _ [lsort $vals]
+    } [lsort [$r hvals smallhash]]
+
+    test {HVALS - big hash} {
+        set vals {}
+        foreach {k v} [array get bighash] {
+            lappend vals $v
+        }
+        set _ [lsort $vals]
+    } [lsort [$r hvals bighash]]
+
+    test {HGETALL - small hash} {
+        lsort [$r hgetall smallhash]
+    } [lsort [array get smallhash]]
+
+    test {HGETALL - big hash} {
+        lsort [$r hgetall bighash]
+    } [lsort [array get bighash]]
+
+    test {HDEL and return value} {
+        set rv {}
+        lappend rv [$r hdel smallhash nokey]
+        lappend rv [$r hdel bighash nokey]
+        set k [lindex [array names smallhash *] 0]
+        lappend rv [$r hdel smallhash $k]
+        lappend rv [$r hdel smallhash $k]
+        lappend rv [$r hget smallhash $k]
+        unset smallhash($k)
+        set k [lindex [array names bighash *] 0]
+        lappend rv [$r hdel bighash $k]
+        lappend rv [$r hdel bighash $k]
+        lappend rv [$r hget bighash $k]
+        unset bighash($k)
+        set _ $rv
+    } {0 0 1 0 {} 1 0 {}}
+
+    test {HEXISTS} {
+        set rv {}
+        set k [lindex [array names smallhash *] 0]
+        lappend rv [$r hexists smallhash $k]
+        lappend rv [$r hexists smallhash nokey]
+        set k [lindex [array names bighash *] 0]
+        lappend rv [$r hexists bighash $k]
+        lappend rv [$r hexists bighash nokey]
+    } {1 0 1 0}
+
+    test {Is a zipmap encoded Hash promoted on big payload?} {
+        $r hset smallhash foo [string repeat a 1024]
+        $r debug object smallhash
+    } {*hashtable*}
+
+    test {HINCRBY against non existing database key} {
+        $r del htest
+        list [$r hincrby htest foo 2]
+    } {2}
+
+    test {HINCRBY against non existing hash key} {
+        set rv {}
+        $r hdel smallhash tmp
+        $r hdel bighash tmp
+        lappend rv [$r hincrby smallhash tmp 2]
+        lappend rv [$r hget smallhash tmp]
+        lappend rv [$r hincrby bighash tmp 2]
+        lappend rv [$r hget bighash tmp]
+    } {2 2 2 2}
+
+    test {HINCRBY against hash key created by hincrby itself} {
+        set rv {}
+        lappend rv [$r hincrby smallhash tmp 3]
+        lappend rv [$r hget smallhash tmp]
+        lappend rv [$r hincrby bighash tmp 3]
+        lappend rv [$r hget bighash tmp]
+    } {5 5 5 5}
+
+    test {HINCRBY against hash key originally set with HSET} {
+        $r hset smallhash tmp 100
+        $r hset bighash tmp 100
+        list [$r hincrby smallhash tmp 2] [$r hincrby bighash tmp 2]
+    } {102 102}
+
+    test {HINCRBY over 32bit value} {
+        $r hset smallhash tmp 17179869184
+        $r hset bighash tmp 17179869184
+        list [$r hincrby smallhash tmp 1] [$r hincrby bighash tmp 1]
+    } {17179869185 17179869185}
+
+    test {HINCRBY over 32bit value with over 32bit increment} {
+        $r hset smallhash tmp 17179869184
+        $r hset bighash tmp 17179869184
+        list [$r hincrby smallhash tmp 17179869184] [$r hincrby bighash tmp 17179869184]
+    } {34359738368 34359738368}
+
+    test {HINCRBY fails against hash value with spaces} {
+        $r hset smallhash str "    11    "
+        $r hset bighash str "    11    "
+        catch {$r hincrby smallhash str 1} smallerr
+        catch {$r hincrby smallhash str 1} bigerr
+        set rv {}
+        lappend rv [string match "ERR*not an integer*" $smallerr]
+        lappend rv [string match "ERR*not an integer*" $bigerr]
+    } {1 1}
+
+    # TODO:
+    # Randomized test, small and big
+    # .rdb / AOF consistency test should include hashes
+
+    test {EXPIRE - don't set timeouts multiple times} {
+        $r set x foobar
+        set v1 [$r expire x 5]
+        set v2 [$r ttl x]
+        set v3 [$r expire x 10]
+        set v4 [$r ttl x]
+        list $v1 $v2 $v3 $v4
+    } {1 5 0 5}
+
+    test {EXPIRE - It should be still possible to read 'x'} {
+        $r get x
+    } {foobar}
+
+    test {EXPIRE - After 6 seconds the key should no longer be here} {
+        after 6000
+        list [$r get x] [$r exists x]
+    } {{} 0}
+
+    test {EXPIRE - Delete on write policy} {
+        $r del x
+        $r lpush x foo
+        $r expire x 1000
+        $r lpush x bar
+        $r lrange x 0 -1
+    } {bar}
+
+    test {EXPIREAT - Check for EXPIRE alike behavior} {
+        $r del x
+        $r set x foo
+        $r expireat x [expr [clock seconds]+15]
+        $r ttl x
+    } {1[345]}
+
+    test {SETEX - Set + Expire combo operation. Check for TTL} {
+        $r setex x 12 test
+        $r ttl x
+    } {1[012]}
+
+    test {SETEX - Check value} {
+        $r get x
+    } {test}
+
+    test {SETEX - Overwrite old key} {
+        $r setex y 1 foo
+        $r get y
+    } {foo}
+
+    test {SETEX - Wait for the key to expire} {
+        after 3000
+        $r get y
+    } {}
+
+    test {SETEX - Wrong time parameter} {
+        catch {$r setex z -10 foo} e
+        set _ $e
+    } {*invalid expire*}
+
+    test {ZSETs skiplist implementation backlink consistency test} {
+        set diff 0
+        set elements 10000
+        for {set j 0} {$j < $elements} {incr j} {
+            $r zadd myzset [expr rand()] "Element-$j"
+            $r zrem myzset "Element-[expr int(rand()*$elements)]"
+        }
+        set l1 [$r zrange myzset 0 -1]
+        set l2 [$r zrevrange myzset 0 -1]
+        for {set j 0} {$j < [llength $l1]} {incr j} {
+            if {[lindex $l1 $j] ne [lindex $l2 end-$j]} {
+                incr diff
+            }
+        }
+        format $diff
+    } {0}
+
+    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
+    } {}
+
     foreach fuzztype {binary alpha compr} {
         test "FUZZ stresser with data model $fuzztype" {
             set err 0
-            for {set i 0} {$i < 1000} {incr i} {
+            for {set i 0} {$i < 10000} {incr i} {
                 set fuzz [randstring 0 512 $fuzztype]
                 $r set foo $fuzz
                 set got [$r get foo]
                 if {$got ne $fuzz} {
-                    incr err
+                    set err [list $fuzz $got]
                     break
                 }
             }
-            format $err
+            set _ $err
         } {0}
     }
 
+    test {BGSAVE} {
+        waitForBgsave $r
+        $r flushdb
+        $r save
+        $r set x 10
+        $r bgsave
+        waitForBgsave $r
+        $r debug reload
+        $r get x
+    } {10}
+
+    test {Handle an empty query well} {
+        set fd [$r channel]
+        puts -nonewline $fd "\r\n"
+        flush $fd
+        $r ping
+    } {PONG}
+
+    test {Negative multi bulk command does not create problems} {
+        set fd [$r channel]
+        puts -nonewline $fd "*-10\r\n"
+        flush $fd
+        $r ping
+    } {PONG}
+
+    test {Negative multi bulk payload} {
+        set fd [$r channel]
+        puts -nonewline $fd "SET x -10\r\n"
+        flush $fd
+        gets $fd
+    } {*invalid bulk*}
+
+    test {Too big bulk payload} {
+        set fd [$r channel]
+        puts -nonewline $fd "SET x 2000000000\r\n"
+        flush $fd
+        gets $fd
+    } {*invalid bulk*count*}
+
+    test {Multi bulk request not followed by bulk args} {
+        set fd [$r channel]
+        puts -nonewline $fd "*1\r\nfoo\r\n"
+        flush $fd
+        gets $fd
+    } {*protocol error*}
+
+    test {Generic wrong number of args} {
+        catch {$r ping x y z} err
+        set _ $err
+    } {*wrong*arguments*ping*}
+
+    test {SELECT an out of range DB} {
+        catch {$r select 1000000} err
+        set _ $err
+    } {*invalid*}
+
+    if {![catch {package require sha1}]} {
+        test {Check consistency of different data types after a reload} {
+            $r flushdb
+            createComplexDataset $r 10000
+            set sha1 [datasetDigest $r]
+            $r debug reload
+            set sha1_after [datasetDigest $r]
+            expr {$sha1 eq $sha1_after}
+        } {1}
+
+        test {Same dataset digest if saving/reloading as AOF?} {
+            $r bgrewriteaof
+            waitForBgrewriteaof $r
+            $r debug loadaof
+            set sha1_after [datasetDigest $r]
+            expr {$sha1 eq $sha1_after}
+        } {1}
+    }
+
+    test {EXPIRES after a reload (snapshot + append only file)} {
+        $r flushdb
+        $r set x 10
+        $r expire x 1000
+        $r save
+        $r debug reload
+        set ttl [$r ttl x]
+        set e1 [expr {$ttl > 900 && $ttl <= 1000}]
+        $r bgrewriteaof
+        waitForBgrewriteaof $r
+        set ttl [$r ttl x]
+        set e2 [expr {$ttl > 900 && $ttl <= 1000}]
+        list $e1 $e2
+    } {1 1}
+
+    test {PIPELINING stresser (also a regression for the old epoll bug)} {
+        set fd2 [socket $::host $::port]
+        fconfigure $fd2 -encoding binary -translation binary
+        puts -nonewline $fd2 "SELECT 9\r\n"
+        flush $fd2
+        gets $fd2
+
+        for {set i 0} {$i < 100000} {incr i} {
+            set q {}
+            set val "0000${i}0000"
+            append q "SET key:$i [string length $val]\r\n$val\r\n"
+            puts -nonewline $fd2 $q
+            set q {}
+            append q "GET key:$i\r\n"
+            puts -nonewline $fd2 $q
+        }
+        flush $fd2
+
+        for {set i 0} {$i < 100000} {incr i} {
+            gets $fd2 line
+            gets $fd2 count
+            set count [string range $count 1 end]
+            set val [read $fd2 $count]
+            read $fd2 2
+        }
+        close $fd2
+        set _ 1
+    } {1}
+
+    test {MUTLI / EXEC basics} {
+        $r del mylist
+        $r rpush mylist a
+        $r rpush mylist b
+        $r rpush mylist c
+        $r multi
+        set v1 [$r lrange mylist 0 -1]
+        set v2 [$r ping]
+        set v3 [$r exec]
+        list $v1 $v2 $v3
+    } {QUEUED QUEUED {{a b c} PONG}}
+
+    test {DISCARD} {
+        $r del mylist
+        $r rpush mylist a
+        $r rpush mylist b
+        $r rpush mylist c
+        $r multi
+        set v1 [$r del mylist]
+        set v2 [$r discard]
+        set v3 [$r lrange mylist 0 -1]
+        list $v1 $v2 $v3
+    } {QUEUED OK {a b c}}
+
+    test {APPEND basics} {
+        list [$r append foo bar] [$r get foo] \
+             [$r append foo 100] [$r get foo]
+    } {3 bar 6 bar100}
+
+    test {APPEND basics, integer encoded values} {
+        set res {}
+        $r del foo
+        $r append foo 1
+        $r append foo 2
+        lappend res [$r get foo]
+        $r set foo 1
+        $r append foo 2
+        lappend res [$r get foo]
+    } {12 12}
+
+    test {APPEND fuzzing} {
+        set err {}
+        foreach type {binary alpha compr} {
+            set buf {}
+            $r del x
+            for {set i 0} {$i < 1000} {incr i} {
+                set bin [randstring 0 10 $type]
+                append buf $bin
+                $r append x $bin
+            }
+            if {$buf != [$r get x]} {
+                set err "Expected '$buf' found '[$r get x]'"
+                break
+            }
+        }
+        set _ $err
+    } {}
+
+    test {SUBSTR basics} {
+        set res {}
+        $r set foo "Hello World"
+        lappend res [$r substr foo 0 3]
+        lappend res [$r substr foo 0 -1]
+        lappend res [$r substr foo -4 -1]
+        lappend res [$r substr foo 5 3]
+        lappend res [$r substr foo 5 5000]
+        lappend res [$r substr foo -5000 10000]
+        set _ $res
+    } {Hell {Hello World} orld {} { World} {Hello World}}
+
+    test {SUBSTR against integer encoded values} {
+        $r set foo 123
+        $r substr foo 0 -2
+    } {12}
+
+    test {SUBSTR fuzzing} {
+        set err {}
+        for {set i 0} {$i < 1000} {incr i} {
+            set bin [randstring 0 1024 binary]
+            set _start [set start [randomInt 1500]]
+            set _end [set end [randomInt 1500]]
+            if {$_start < 0} {set _start "end-[abs($_start)-1]"}
+            if {$_end < 0} {set _end "end-[abs($_end)-1]"}
+            set s1 [string range $bin $_start $_end]
+            $r set bin $bin
+            set s2 [$r substr bin $start $end]
+            if {$s1 != $s2} {
+                set err "String mismatch"
+                break
+            }
+        }
+        set _ $err
+    } {}
+
     # Leave the user with a clean DB before to exit
-    test {FLUSHALL} {
-        $r flushall
-        $r dbsize
-    } {0}
+    test {FLUSHDB} {
+        set aux {}
+        $r select 9
+        $r flushdb
+        lappend aux [$r dbsize]
+        $r select 10
+        $r flushdb
+        lappend aux [$r dbsize]
+    } {0 0}
+
+    test {Perform a final SAVE to leave a clean DB on disk} {
+        $r save
+    } {OK}
+
+    catch {
+        if {[string match {*Darwin*} [exec uname -a]]} {
+            test {Check for memory leaks} {
+                exec leaks redis-server
+            } {*0 leaks*}
+        }
+    }
 
     puts "\n[expr $::passed+$::failed] tests, $::passed passed, $::failed failed"
     if {$::failed > 0} {
         puts "\n*** WARNING!!! $::failed FAILED TESTS ***\n"
     }
-    close $fd
 }
 
 proc stress {} {
-    set r [redis]
-    $r flushall
+    set r [redis $::host $::port]
+    $r select 9
+    $r flushdb
     while 1 {
         set randkey [expr int(rand()*10000)]
         set randval [expr int(rand()*10000)]
         set randidx0 [expr int(rand()*10)]
         set randidx1 [expr int(rand()*10)]
-        set cmd [expr int(rand()*10)]
+        set cmd [expr int(rand()*20)]
         catch {
             if {$cmd == 0} {$r set $randkey $randval}
             if {$cmd == 1} {$r get $randkey}
@@ -795,20 +2248,84 @@ proc stress {} {
             if {$cmd == 3} {$r lpush $randkey $randval}
             if {$cmd == 4} {$r rpop $randkey}
             if {$cmd == 5} {$r del $randkey}
-            if {$cmd == 6} {$r lrange $randkey $randidx0 $randidx1}
-            if {$cmd == 7} {$r ltrim $randkey $randidx0 $randidx1}
-            if {$cmd == 8} {$r lindex $randkey $randidx0}
-            if {$cmd == 9} {$r lset $randkey $randidx0 $randval}
+            if {$cmd == 6} {$r llen $randkey}
+            if {$cmd == 7} {$r lrange $randkey $randidx0 $randidx1}
+            if {$cmd == 8} {$r ltrim $randkey $randidx0 $randidx1}
+            if {$cmd == 9} {$r lindex $randkey $randidx0}
+            if {$cmd == 10} {$r lset $randkey $randidx0 $randval}
+            if {$cmd == 11} {$r sadd $randkey $randval}
+            if {$cmd == 12} {$r srem $randkey $randval}
+            if {$cmd == 13} {$r smove $randkey $randval}
+            if {$cmd == 14} {$r scard $randkey}
+            if {$cmd == 15} {$r expire $randkey [expr $randval%60]}
         }
         flush stdout
     }
+    $r flushdb
     $r close
 }
 
-if {[llength $argv] == 0} {
-    main 127.0.0.1 6379
-} elseif {[llength $argv] == 1 && [lindex $argv 0] eq {stress}} {
+# Set a few configuration defaults
+set ::host 127.0.0.1
+set ::port 6379
+set ::stress 0
+set ::traceleaks 0
+set ::flush 0
+set ::first 0
+set ::last 1000000
+
+# Parse arguments
+for {set j 0} {$j < [llength $argv]} {incr j} {
+    set opt [lindex $argv $j]
+    set arg [lindex $argv [expr $j+1]]
+    set lastarg [expr {$arg eq {}}]
+    if {$opt eq {-h} && !$lastarg} {
+        set ::host $arg
+        incr j
+    } elseif {$opt eq {-p} && !$lastarg} {
+        set ::port $arg
+        incr j
+    } elseif {$opt eq {--stress}} {
+        set ::stress 1
+    } elseif {$opt eq {--trace-leaks}} {
+        set ::traceleaks 1
+    } elseif {$opt eq {--flush}} {
+        set ::flush 1
+    } elseif {$opt eq {--first} && !$lastarg} {
+        set ::first $arg
+        incr j
+    } elseif {$opt eq {--last} && !$lastarg} {
+        set ::last $arg
+        incr j
+    } else {
+        puts "Wrong argument: $opt"
+        exit 1
+    }
+}
+
+# Before to run the test check if DB 9 and DB 10 are empty
+set r [redis $::host $::port]
+
+if {$::flush} {
+    $r flushall
+}
+
+$r select 9
+set db9size [$r dbsize]
+$r select 10
+set db10size [$r dbsize]
+if {$db9size != 0 || $db10size != 0} {
+    puts "Can't run the tests against DB 9 and 10: DBs are not empty."
+    exit 1
+}
+$r close
+unset r
+unset db9size
+unset db10size
+
+puts "Testing Redis, host $::host, port $::port"
+if {$::stress} {
     stress
 } else {
-    main [lindex $argv 0] [lindex $argv 1]
+    main
 }