tests/unit/sort.tcl

   1 start_server {
   2     tags {"sort"}
   3     overrides {
   4         "list-max-ziplist-value" 16
   5         "list-max-ziplist-entries" 32
   6         "set-max-intset-entries" 32
   7     }
   8 } {
   9     proc create_random_dataset {num cmd} {
  10         set tosort {}
  11         set result {}
  12         array set seenrand {}
  13         r del tosort
  14         for {set i 0} {$i < $num} {incr i} {
  15             # Make sure all the weights are different because
  16             # Redis does not use a stable sort but Tcl does.
  17             while 1 {
  18                 randpath {
  19                     set rint [expr int(rand()*1000000)]
  20                 } {
  21                     set rint [expr rand()]
  22                 }
  23                 if {![info exists seenrand($rint)]} break
  24             }
  25             set seenrand($rint) x
  26             r $cmd tosort $i
  27             r set weight_$i $rint
  28             r hset wobj_$i weight $rint
  29             lappend tosort [list $i $rint]
  30         }
  31         set sorted [lsort -index 1 -real $tosort]
  32         for {set i 0} {$i < $num} {incr i} {
  33             lappend result [lindex $sorted $i 0]
  34         }
  35         set _ $result
  36     }
  37
  38     foreach {num cmd enc title} {
  39         16 lpush ziplist "Ziplist"
  40         1000 lpush linkedlist "Linked list"
  41         10000 lpush linkedlist "Big Linked list"
  42         16 sadd intset "Intset"
  43         1000 sadd hashtable "Hash table"
  44         10000 sadd hashtable "Big Hash table"
  45     } {
  46         set result [create_random_dataset $num $cmd]
  47         assert_encoding $enc tosort
  48
  49         test "$title: SORT BY key" {
  50             assert_equal $result [r sort tosort {BY weight_*}]
  51         }
  52
  53         test "$title: SORT BY hash field" {
  54             assert_equal $result [r sort tosort {BY wobj_*->weight}]
  55         }
  56     }
  57
  58     set result [create_random_dataset 16 lpush]
  59     test "SORT GET #" {
  60         assert_equal [lsort -integer $result] [r sort tosort GET #]
  61     }
  62
  63     test "SORT GET <const>" {
  64         r del foo
  65         set res [r sort tosort GET foo]
  66         assert_equal 16 [llength $res]
  67         foreach item $res { assert_equal {} $item }
  68     }
  69
  70     test "SORT GET (key and hash) with sanity check" {
  71         set l1 [r sort tosort GET # GET weight_*]
  72         set l2 [r sort tosort GET # GET wobj_*->weight]
  73         foreach {id1 w1} $l1 {id2 w2} $l2 {
  74             assert_equal $id1 $id2
  75             assert_equal $w1 [r get weight_$id1]
  76             assert_equal $w2 [r get weight_$id1]
  77         }
  78     }
  79
  80     test "SORT BY key STORE" {
  81         r sort tosort {BY weight_*} store sort-res
  82         assert_equal $result [r lrange sort-res 0 -1]
  83         assert_equal 16 [r llen sort-res]
  84         assert_encoding ziplist sort-res
  85     }
  86
  87     test "SORT BY hash field STORE" {
  88         r sort tosort {BY wobj_*->weight} store sort-res
  89         assert_equal $result [r lrange sort-res 0 -1]
  90         assert_equal 16 [r llen sort-res]
  91         assert_encoding ziplist sort-res
  92     }
  93
  94     test "SORT DESC" {
  95         assert_equal [lsort -decreasing -integer $result] [r sort tosort {DESC}]
  96     }
  97
  98     test "SORT ALPHA against integer encoded strings" {
  99         r del mylist
 100         r lpush mylist 2
 101         r lpush mylist 1
 102         r lpush mylist 3
 103         r lpush mylist 10
 104         r sort mylist alpha
 105     } {1 10 2 3}
 106
 107     test "SORT sorted set" {
 108         r del zset
 109         r zadd zset 1 a
 110         r zadd zset 5 b
 111         r zadd zset 2 c
 112         r zadd zset 10 d
 113         r zadd zset 3 e
 114         r sort zset alpha desc
 115     } {e d c b a}
 116
 117     test "SORT sorted set: +inf and -inf handling" {
 118         r del zset
 119         r zadd zset -100 a
 120         r zadd zset 200 b
 121         r zadd zset -300 c
 122         r zadd zset 1000000 d
 123         r zadd zset +inf max
 124         r zadd zset -inf min
 125         r zrange zset 0 -1
 126     } {min c a b d max}
 127
 128     test "SORT regression for issue #19, sorting floats" {
 129         r flushdb
 130         set floats {1.1 5.10 3.10 7.44 2.1 5.75 6.12 0.25 1.15}
 131         foreach x $floats {
 132             r lpush mylist $x
 133         }
 134         assert_equal [lsort -real $floats] [r sort mylist]
 135     }
 136
 137     tags {"slow"} {
 138         set num 100
 139         set res [create_random_dataset $num lpush]
 140
 141         test "SORT speed, $num element list BY key, 100 times" {
 142             set start [clock clicks -milliseconds]
 143             for {set i 0} {$i < 100} {incr i} {
 144                 set sorted [r sort tosort {BY weight_* LIMIT 0 10}]
 145             }
 146             set elapsed [expr [clock clicks -milliseconds]-$start]
 147             puts -nonewline "\n  Average time to sort: [expr double($elapsed)/100] milliseconds "
 148             flush stdout
 149         }
 150
 151         test "SORT speed, $num element list BY hash field, 100 times" {
 152             set start [clock clicks -milliseconds]
 153             for {set i 0} {$i < 100} {incr i} {
 154                 set sorted [r sort tosort {BY wobj_*->weight LIMIT 0 10}]
 155             }
 156             set elapsed [expr [clock clicks -milliseconds]-$start]
 157             puts -nonewline "\n  Average time to sort: [expr double($elapsed)/100] milliseconds "
 158             flush stdout
 159         }
 160
 161         test "SORT speed, $num element list directly, 100 times" {
 162             set start [clock clicks -milliseconds]
 163             for {set i 0} {$i < 100} {incr i} {
 164                 set sorted [r sort tosort {LIMIT 0 10}]
 165             }
 166             set elapsed [expr [clock clicks -milliseconds]-$start]
 167             puts -nonewline "\n  Average time to sort: [expr double($elapsed)/100] milliseconds "
 168             flush stdout
 169         }
 170
 171         test "SORT speed, $num element list BY <const>, 100 times" {
 172             set start [clock clicks -milliseconds]
 173             for {set i 0} {$i < 100} {incr i} {
 174                 set sorted [r sort tosort {BY nokey LIMIT 0 10}]
 175             }
 176             set elapsed [expr [clock clicks -milliseconds]-$start]
 177             puts -nonewline "\n  Average time to sort: [expr double($elapsed)/100] milliseconds "
 178             flush stdout
 179         }
 180     }
 181 }