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########################################################################
PRNG Lua API tests
########################################################################
$ SB_ARGS="--verbosity=0 --events=1"
$ cat >$CRAMTMP/api_rand.lua <<EOF
> function event()
> print("sb_rand(0, 9) = " .. sb_rand(0, 9))
> print("sb_rand_uniq(0, 4294967295) = " .. sb_rand_uniq(0, 4294967295))
> print("sb_rnd() = " .. sb_rnd())
> print([[sb_rand_str("abc-###-@@@-xyz") = ]] .. sb_rand_str("abc-###-@@@-xyz"))
> print("sb_rand_uniform(0, 9) = " .. sb_rand_uniform(0, 9))
> print("sb_rand_gaussian(0, 9) = " .. sb_rand_gaussian(0, 9))
> print("sb_rand_special(0, 9) = " .. sb_rand_special(0, 9))
> end
> EOF
$ sysbench $SB_ARGS $CRAMTMP/api_rand.lua run
sb_rand\(0, 9\) = [0-9]{1} (re)
sb_rand_uniq\(0, 4294967295\) = [0-9]{1,10} (re)
sb_rnd\(\) = [0-9]+ (re)
sb_rand_str\(".*"\) = abc-[0-9]{3}-[a-z]{3}-xyz (re)
sb_rand_uniform\(0, 9\) = [0-9]{1} (re)
sb_rand_gaussian\(0, 9\) = [0-9]{1} (re)
sb_rand_special\(0, 9\) = [0-9]{1} (re)
########################################################################
issue #96: sb_rand_uniq(1, oltp_table_size) generate duplicate value
########################################################################
$ cat >$CRAMTMP/api_rand_uniq.lua <<EOF
> function event()
> local max = 1000000000
> local n = sb_rand_uniq(1, max)
> if n > max then
> error("n is out of range")
> end
> print(n)
> end
> EOF
$ sysbench $SB_ARGS --events=100000 $CRAMTMP/api_rand_uniq.lua run |
> sort -n | uniq | wc -l | sed -e 's/ //g'
100000
|
