What s the best way to generate a base64 token with Arb kotlinlang #kotest

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Title

d

dave08

05/18/2021, 1:31 PM

What's the best way to generate a base64 token with Arb?

s

sam

05/18/2021, 1:31 PM

You just want a random base 64 string ?

d

dave08

05/18/2021, 1:31 PM

Yeah, with a certain range of lengths

I don't see a base64 codepoint, which I would assume to be what I need?

s

sam

05/18/2021, 1:33 PM

Yes was just typing that

you need a base 64 codepoint arb (please contribute?) and then feed that into the string arb

Arb.string(0, 128, Arb.base64())

d

dave08

05/18/2021, 1:42 PM

I guess the naive implementation would be:

fun Arb.Companion.base64(): Arb<Codepoint> =
    Arb.element((('a'..'z') + ('A'..'Z') + ('0'..'9') + '+' + '/').toList()).map { Codepoint(it.code) }

But that ignores the

padding...

It doesn't really matter in my case for now... but a real implementation wouldn't just be codepoints.

s

sam

05/18/2021, 1:44 PM

yeah it would be codepoints + padding

still feel free to contribute one 🙂

d

dave08

05/18/2021, 1:52 PM

If I have a chance to make a more complete Arb for this, I surely will!

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