55 lines
1.2 KiB
Go
55 lines
1.2 KiB
Go
package main
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import (
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"log"
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"sync"
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"git.staur.ca/stobbsm/tind"
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)
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var (
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RuneSet = []rune("0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz!@#$%^&*()_+-=[]{}/';:.>,<`~")
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)
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const runs uint64 = 10000
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// CollisionChecks runs different tests to check for collisions, and get's the average
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func CollisionChecks() {
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wg := new(sync.WaitGroup)
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log.Println("Using multiple configurations, test for collisions multiple times")
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sizes := []int{4,5,6,7,8,9,10,11,12,13,14,15,16}
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end := len(RuneSet)
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for i := 4; i < end; i++ {
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for _, v := range sizes {
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v := v
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rs :=RuneSet[:i]
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wg.Add(1)
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go collisionCheck(v, rs, wg, len(rs))
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}
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}
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wg.Wait()
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}
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func collisionCheck(size int, runeset []rune, wg *sync.WaitGroup, runesize int) {
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defer wg.Done()
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var total uint64
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for i := uint64(0); i < runs; i++ {
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total += runCheck(tind.New().WithSize(size).WithRuneset(runeset))
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}
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log.Printf("runset size: %d, id size: %d, average iterations before collision: %d", runesize, size, total/runs)
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}
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func runCheck(tconfig *tind.Config) uint64 {
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var i uint64
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tmap := make(map[string]struct{})
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for {
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i++
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t := tconfig.Gen()
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if _, ok := tmap[t.String()]; ok {
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return i
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}
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tmap[t.String()] = struct{}{}
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}
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}
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