this post was submitted on 04 Aug 2023
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I know there's mockall which seems to be geared towards implementation methods and traits, but I'm wondering about just structs with non-function properties.

In my tests, I want to define initialized structs with values. It works fine to just do it like I normally would in code, but I'm wondering if there's more to it than that. Like if I have a cat struct:

struct Cat { name : String } `

#[cfg(test)] pub mod test { use super::Cat; fn test_create_cat() -> Cat { Cat { name. : String::from("Fred") }; }

That's fine, but should I be doing it differently? What about mockall, is it not meant for structs with properties?

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[–] hatchet@sh.itjust.works 3 points 1 year ago (2 children)

I'm not quite sure I fully understand the question, but would implementing the Default trait work?

Otherwise, I've used Arbitrary in tests before, maybe that's what you're looking for?

[–] nerdblood@programming.dev 1 points 1 year ago

Default could be useful here, thanks!

[–] nerdblood@programming.dev 1 points 1 year ago

Oh wow, default is so nice. I wasn't exactly looking for this when I asked the question, but I'm glad you tipped me off to it.