zach-klippenstein / goregen Goto Github PK

generator.Generate() returns the same string when run multiple times. Is this the expected behaviour?

package main

import (
        "math/rand"
        "fmt"
        regen "github.com/zach-klippenstein/goregen"
)

func main() {
        pattern := `^[a-z0-9._%+\-]+@[a-z0-9.\-]+\.[a-z]{2,4}$`
        generator, _ := regen.NewGenerator(pattern, &regen.GeneratorArgs{
                RngSource: rand.NewSource(0),
        })

//      for i := 0; i < 10; i++ {
                fmt.Printf("email is %s\n", generator.Generate())
//      }
}

GoConvey makes tests more readable and descriptive, and has more flexible assertions.

error parsing regexp: invalid escape sequence: \s

Hey,

First of all, I want to appreciate the author of this project. This library is super useful for testing. Sadly, the repo is abandoned, so I had to fork it to drop unnecessary dependencies.

My fork is here: https://github.com/AnatolyRugalev/goregen. Changelog:

• added go mod support
• dropped convey and gxui dependencies
• tagged it with v0.1.0

Cheers.

consider regex 0{1,10}, https://goregen-demo.herokuapp.com/?Regex=0%7B1%2C10%7D&Count=10

after performing this query 10 times it appears that the results are skewed towards the lower lengths, with a majority of the results being 0 and 00. wondering if you have any insights into this or its just my imagination? perhaps it is related to how the value is generated in the case of this regex?

in contrast, a regex like this https://goregen-demo.herokuapp.com/?Regex=0%7C%5B1-9%5D&Count=10 appears to consistently distribute randomly across the domain.

There is a dependency on (unmaintained) gxui, just to get math.Max from gxui in tests.