Enum-Derived

Enum-Derived is a collection of derive macros that extend the functionality of enums

Rand

Rand allows for a random variant of an enum to be generated. This can be particularly useful when testing and the specific variant isn't important.

The rand crates rand::random method must have an implementation for each type used in a variant to be able to generate the enum.

```rust use enum_derived::Rand;

[derive(Rand)]

pub enum Example { Empty, Integers(u8, u16, u32, u64, usize, i8, i16, i32, i64, isize), Character(char), Boolean(bool), FloatingPoint(f32, f64), MaximumArrayLength([u8; 32]), LongTuple((u8, u16, u32, u64, usize, i8, i16, i32, i64, isize, f32, f64)), Options(Option), NamedFields { hello: u8, world: bool, }, #[customrand(randstring)] RandString(String), #[customrand(randvec)] RandVec(Vec), }

fn randstring() -> Example { let uniquestr = format!("{:?}", std::time::SystemTime::now()); Example::RandString(unique_str) }

fn rand_vec() -> Example { Example::RandVec(vec![1,2,3,4,5]) }

fn main() { let example = Example::rand(); } ```

Two examples where the rand method is only available in tests.

Vehicle::rand() is not available in main()

```rust compile_fail

[cfg(test)]

use enum_derived::Rand;

[cfg_attr(test, Rand)]

[derive(Debug)]

pub enum Vehicle { Car, Truck, Motorbike, }

fn main() { let vehicle = Vehicle::rand(); }

```

Vehicle::rand() is available in the tests module

```rust

[cfg(test)]

use enum_derived::Rand;

[cfg_attr(test, Rand)]

[derive(Debug)]

pub enum Vehicle { Car, Truck, Motorbike, }

[cfg(test)]

mod tests { use super::*;

#[test]
fn random_vehicle() {
    let vehicle = Vehicle::rand();
}

} ```