Prevent clients from making too large multibulk requests

[redis.git] / tests / unit / type / set.tcl

diff --git a/tests/unit/type/set.tcl b/tests/unit/type/set.tcl
index 056ed27c824ce888cec0952693e2ed0f0384707b..5608a6480546676c1e29a90b16debb8b7bd4de34 100644 (file)
--- a/tests/unit/type/set.tcl
+++ b/tests/unit/type/set.tcl
@@ -106,14 +106,17 @@ start_server {
         }
         r sadd set5 0
 
-        # it is possible that a hashtable encoded only contains integers,
-        # because it is converted from an intset to a hashtable when a
-        # non-integer element is added and then removed.
+        # To make sure the sets are encoded as the type we are testing -- also
+        # when the VM is enabled and the values may be swapped in and out
+        # while the tests are running -- an extra element is added to every
+        # set that determines its encoding.
+        set large 200
         if {$type eq "hashtable"} {
-            for {set i 1} {$i <= 5} {incr i} {
-                r sadd [format "set%d" $i] foo
-                r srem [format "set%d" $i] foo
-            }
+            set large foo
+        }
+
+        for {set i 1} {$i <= 5} {incr i} {
+            r sadd [format "set%d" $i] $large
         }
 
         test "Generated sets must be encoded as $type" {
@@ -123,20 +126,20 @@ start_server {
         }
 
         test "SINTER with two sets - $type" {
-            assert_equal {195 196 197 198 199} [lsort [r sinter set1 set2]]
+            assert_equal [list 195 196 197 198 199 $large] [lsort [r sinter set1 set2]]
         }
 
         test "SINTERSTORE with two sets - $type" {
             r sinterstore setres set1 set2
-            assert_encoding intset setres
-            assert_equal {195 196 197 198 199} [lsort [r smembers setres]]
+            assert_encoding $type setres
+            assert_equal [list 195 196 197 198 199 $large] [lsort [r smembers setres]]
         }
 
         test "SINTERSTORE with two sets, after a DEBUG RELOAD - $type" {
             r debug reload
             r sinterstore setres set1 set2
-            assert_encoding intset setres
-            assert_equal {195 196 197 198 199} [lsort [r smembers setres]]
+            assert_encoding $type setres
+            assert_equal [list 195 196 197 198 199 $large] [lsort [r smembers setres]]
         }
 
         test "SUNION with two sets - $type" {
@@ -146,18 +149,18 @@ start_server {
 
         test "SUNIONSTORE with two sets - $type" {
             r sunionstore setres set1 set2
-            assert_encoding intset setres
+            assert_encoding $type setres
             set expected [lsort -uniq "[r smembers set1] [r smembers set2]"]
             assert_equal $expected [lsort [r smembers setres]]
         }
 
         test "SINTER against three sets - $type" {
-            assert_equal {195 199} [lsort [r sinter set1 set2 set3]]
+            assert_equal [list 195 199 $large] [lsort [r sinter set1 set2 set3]]
         }
 
         test "SINTERSTORE with three sets - $type" {
             r sinterstore setres set1 set2 set3
-            assert_equal {195 199} [r smembers setres]
+            assert_equal [list 195 199 $large] [lsort [r smembers setres]]
         }
 
         test "SUNION with non existing keys - $type" {
@@ -175,7 +178,9 @@ start_server {
 
         test "SDIFFSTORE with three sets - $type" {
             r sdiffstore setres set1 set4 set5
-            assert_encoding intset setres
+            # The type is determined by type of the first key to diff against.
+            # See the implementation for more information.
+            assert_encoding $type setres
             assert_equal {1 2 3 4} [lsort [r smembers setres]]
         }
     }
@@ -290,4 +295,40 @@ start_server {
         r set x 10
         assert_error "ERR*wrong kind*" {r smove myset2 x foo}
     }
+
+    tags {slow} {
+        test {intsets implementation stress testing} {
+            for {set j 0} {$j < 20} {incr j} {
+                unset -nocomplain s
+                array set s {}
+                r del s
+                set len [randomInt 1024]
+                for {set i 0} {$i < $len} {incr i} {
+                    randpath {
+                        set data [randomInt 65536]
+                    } {
+                        set data [randomInt 4294967296]
+                    } {
+                        set data [randomInt 18446744073709551616]
+                    }
+                    set s($data) {}
+                    r sadd s $data
+                }
+                assert_equal [lsort [r smembers s]] [lsort [array names s]]
+                set len [array size s]
+                for {set i 0} {$i < $len} {incr i} {
+                    set e [r spop s]
+                    if {![info exists s($e)]} {
+                        puts "Can't find '$e' on local array"
+                        puts "Local array: [lsort [r smembers s]]"
+                        puts "Remote array: [lsort [array names s]]"
+                        error "exception"
+                    }
+                    array unset s $e
+                }
+                assert_equal [r scard s] 0
+                assert_equal [array size s] 0
+            }
+        }
+    }
 }