Re: [Haskell-cafe] Hedgehog: returning a list from `commandExecute` and getting to the items in an update function

Magnus Therning writes:

I found an open issue for what I've run into (I think): https://github.com/hedgehogqa/haskell-hedgehog/issues/113

My copy-pasting skills need work! The issue is this: https://github.com/hedgehogqa/haskell-hedgehog/issues/126 /M

Magnus Therning writes:

...

Hello,

I'm trying to use Hedgehog to test a web app at work. Yesterday I ran into an issue with getting to the value returned from my `commandExecute` in an `Update` `Callback`.

Basically my model looks like this

~~~ newtype State (v :: * -> *) = State (M.Map (Var UUID v) DataPerItem) deriving (Eq, Show) ~~~

and I have an action, `Command gen exec [Update update]` where

~~~ exec :: action -> m [UUID] ~~~

which results in

~~~ update :: State v -> action -> Var [UUID] v -> State v ~~~

AFAICS I need to, in order to actually update my model, turn that `Var [UUID] v` into `[Var UUID v]`. I've been staring at the functions in Hedgehog for a while now but nothing jumps out... or am I, once again, thinking about it all wrong? :)

/M

I also asked at stackoverflow: https://stackoverflow.com/questions/58157292/returning-a-list-and-getting-to... This is just to widen the net a bit...

-- Magnus Therning OpenPGP: 0x927912051716CE39 email: magnus@therning.org twitter: magthe http://magnus.therning.org/ Every act of creation is first an act of destruction. — Pablo Picasso