Scripting: require at least one argument for redis.call().

[redis.git] / tests / unit / scripting.tcl

diff --git a/tests/unit/scripting.tcl b/tests/unit/scripting.tcl
index 091b4c430df2959fedb9fb5dee8277c749c06fe8..6d60e419871117dd5e9a414ecf517fe924b3cda7 100644 (file)
--- a/tests/unit/scripting.tcl
+++ b/tests/unit/scripting.tcl
@@ -145,6 +145,12 @@ start_server {tags {"scripting"}} {
         set e
     } {*not allowed after*}
 
+    test {EVAL - No arguments to redis.call/pcall is considered an error} {
+        set e {}
+        catch {r eval {return redis.call()} 0} e
+        set e
+    } {*one argument*}
+
     test {EVAL - redis.call variant raises a Lua error on Redis cmd error (1)} {
         set e {}
         catch {
@@ -223,39 +229,92 @@ start_server {tags {"scripting"}} {
     test {Globals protection reading an undeclared global variable} {
         catch {r eval {return a} 0} e
         set e
-    } {*ERR*global variable*not declared*}
+    } {*ERR*attempted to access unexisting global*}
 
-    test {Globals protection setting an undeclared global variable} {
+    test {Globals protection setting an undeclared global*} {
         catch {r eval {a=10} 0} e
         set e
-    } {*ERR*assignment to undeclared*}
+    } {*ERR*attempted to create global*}
+
+    test {Test an example script DECR_IF_GT} {
+        set decr_if_gt {
+            local current
+
+            current = redis.call('get',KEYS[1])
+            if not current then return nil end
+            if current > ARGV[1] then
+                return redis.call('decr',KEYS[1])
+            else
+                return redis.call('get',KEYS[1])
+            end
+        }
+        r set foo 5
+        set res {}
+        lappend res [r eval $decr_if_gt 1 foo 2]
+        lappend res [r eval $decr_if_gt 1 foo 2]
+        lappend res [r eval $decr_if_gt 1 foo 2]
+        lappend res [r eval $decr_if_gt 1 foo 2]
+        lappend res [r eval $decr_if_gt 1 foo 2]
+        set res
+    } {4 3 2 2 2}
+
+    test {Scripting engine resets PRNG at every script execution} {
+        set rand1 [r eval {return tostring(math.random())} 0]
+        set rand2 [r eval {return tostring(math.random())} 0]
+        assert_equal $rand1 $rand2
+    }
 
-    test {Globals protection bypassed using 'global' function} {
-        catch {r eval {global("a"); a=10; return a} 0} e
-        set e
-    } {10}
+    test {Scripting engine PRNG can be seeded correctly} {
+        set rand1 [r eval {
+            math.randomseed(ARGV[1]); return tostring(math.random())
+        } 0 10]
+        set rand2 [r eval {
+            math.randomseed(ARGV[1]); return tostring(math.random())
+        } 0 10]
+        set rand3 [r eval {
+            math.randomseed(ARGV[1]); return tostring(math.random())
+        } 0 20]
+        assert_equal $rand1 $rand2
+        assert {$rand2 ne $rand3}
+    }
+}
 
-    test {Globals protection can be disabled} {
-        r config set lua-protect-globals no
-        catch {r eval {b=20; return b} 0} e
-        set e
-    } {20}
+# Start a new server since the last test in this stanza will kill the
+# instance at all.
+start_server {tags {"scripting"}} {
+    test {Timedout read-only scripts can be killed by SCRIPT KILL} {
+        set rd [redis_deferring_client]
+        r config set lua-time-limit 10
+        $rd eval {while true do end} 0
+        after 200
+        catch {r ping} e
+        assert_match {BUSY*} $e
+        r script kill
+        assert_equal [r ping] "PONG"
+    }
 
-    test {Globals protection can be re-enabled} {
-        r config set lua-protect-globals yes
-        catch {r eval {c=30; return c} 0} e
-        set e
-    } {*ERR*assignment to undeclared*}
-
-    test {Globals protection 'global' function works with mutliple args} {
-        catch {r eval {
-            global("var1","var2")
-            var1=10
-            var2=20
-            return {var1,var2}
-        } 0 } e
-        set e
-    } {10 20}
+    test {Timedout scripts that modified data can't be killed by SCRIPT KILL} {
+        set rd [redis_deferring_client]
+        r config set lua-time-limit 10
+        $rd eval {redis.call('set','x','y'); while true do end} 0
+        after 200
+        catch {r ping} e
+        assert_match {BUSY*} $e
+        catch {r script kill} e
+        assert_match {ERR*} $e
+        catch {r ping} e
+        assert_match {BUSY*} $e
+    }
+
+    test {SHUTDOWN NOSAVE can kill a timedout script anyway} {
+        # The server sould be still unresponding to normal commands.
+        catch {r ping} e
+        assert_match {BUSY*} $e
+        catch {r shutdown nosave}
+        # Make sure the server was killed
+        catch {set rd [redis_deferring_client]} e
+        assert_match {*connection refused*} $e
+    }
 }
 
 start_server {tags {"scripting repl"}} {
@@ -266,18 +325,24 @@ start_server {tags {"scripting repl"}} {
 
         test {Connect a slave to the main instance} {
             r -1 slaveof [srv 0 host] [srv 0 port]
-            after 1000
-            s -1 role
-        } {slave}
+            wait_for_condition 50 100 {
+                [s -1 role] eq {slave} &&
+                [string match {*master_link_status:up*} [r -1 info replication]]
+            } else {
+                fail "Can't turn the instance into a slave"
+            }
+        }
 
         test {Now use EVALSHA against the master} {
             r evalsha ae3477e27be955de7e1bc9adfdca626b478d3cb2 0
         } {2}
 
-        if {$::valgrind} {after 2000} else {after 100}
-
         test {If EVALSHA was replicated as EVAL the slave should be ok} {
-            r -1 get x
-        } {2}
+            wait_for_condition 50 100 {
+                [r -1 get x] eq {2}
+            } else {
+                fail "Expected 2 in x, but value is '[r -1 get x]'"
+            }
+        }
     }
 }