How do I use a module from multiple unit test modules? - testing

Question

I have two modules with unit tests and I want to access constants/variables with expected test results from both of those modules.
File: src/lib.rs
mod other;
#[cfg( test )]
mod tests {
mod expected;
use crate::tests::expected::FOUR;
#[test]
fn it_works() {
let result = 2 + 2;
assert_eq!( result, FOUR );
}
}
File: src/other.rs
#[cfg( test )]
mod tests {
use crate::tests::expected::EIGHT;
#[test]
fn it_works() {
let result = 4 + 4;
assert_eq!( result, EIGHT );
}
}
File src/tests/expected.rs
pub const FOUR: i32 = 4;
pub const EIGHT: i32 = 8;
From src/lib.rs I can access the constants within expected.rs. But this is not true from src/other.rs. I get the follwing error:
error[E0603]: module `expected` is private
--> src/other.rs:3:20
|
3 | use crate::tests::expected::EIGHT;
| ^^^^^^^^ private module
|
note: the module `expected` is defined here
--> src/lib.rs:5:2
|
5 | mod expected;
| ^^^^^^^^^^^^^
I have no idea how to make expected public. Where would I place expected.rs or how would I make it accessible from the test code of other modules of the library?