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Make the arb.choice function take derived classes

See original GitHub issue

I am using the new Arb.choice function (Kotest version 4.0.5) and when I use derived classes I need to cast them. For example

    Arb.choice(
        Arb.constant(RuntimeException(message)) as Arb<Exception>,
        Arb.constant(Exception(message)),
        Arb.constant(IllegalArgumentException(message)) as Arb<Exception>,
        Arb.constant(IllegalStateException(message)) as Arb<Exception>
    )

I would like to know if it is possible to declare their types internally as anything that derive from T so I won’t need to cast them. Thank you.

Issue Analytics

State:
Created 3 years ago
Reactions:1
Comments:11 (11 by maintainers)

Top GitHub Comments

1reaction

ataronetcommented, May 3, 2020

👍 Thank you, it works!!

1reaction

sksamuelcommented, Apr 30, 2020

If you’re ready with it james make sense to take yours.

On Thu, 30 Apr 2020, 11:18 James Pittendreigh, notifications@github.com wrote:

Ah this is my fault/bug, I prepared a fix, but don’t want to step on any toes if you wanted to raise a PR (master…jaymoid:arbVarianceFix https://github.com/kotest/kotest/compare/master...jaymoid:arbVarianceFix )

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