Hi :wave: If I’ve got a String Arb and I set the ...

# kotest

[Adam S]

Hi 👋 If I’ve got a String Arb and I set the minimum size to 1, how can I stop it shrinking to size 0?

In this example, authKey shrinks to 0, and so gives an invalid reason for failure.

test("expect 'actual code is failing', _not_ authKey length error") {
    checkAll(
      Arb.string(1..10, Arb.alphanumeric()),
    ) {
        authKey,
      ->
      withClue("authKey must have length > 0") {
        authKey shouldHaveMinLength 1
      }
      fail("actual code is failing")
    }
  }

I’ve tried using Arb.string(1..10, Arb.alphanumeric()).filter { it.isEmpty() }, but then the test loops endlessly

[sam]

the shrinker doesn't take into account sizes

[sam]

Can you file a bug on github and we'll push out a fix

[Adam S]

done, thanks https://github.com/kotest/kotest/issues/2213