Duplicated test results in src when modules are added to lib.cairo

[cptartur]

With the project structure like

/src/fib.rs

fn fib(a: felt252, b: felt252, n: felt252) -> felt252 {
    match n {
        0 => a,
        _ => fib(b, a + b, n - 1),
    }
}

#[test]
fn test_fib() {
    assert(fib(0, 1, 10) == 55, fib(0, 1, 10));
}

/src/lib.rs

mod fib;

Test results are duplicated in the output

Collected 2 test(s) and 2 test file(s)
Running 1 test(s) from src/fib.cairo
[PASS] fib::fib::test_fib
Running 1 test(s) from src/lib.cairo
[PASS] src::fib::test_fib
Tests: 2 passed, 0 failed, 0 skipped

Most likely the tests from fib.rs get collected when running collect_tests on lib.rs since they are reachable from there. Then we collect them again from fib.rs directly, causing the duplication. This should be fixed, so we do not collect test duplicates.

[MaksymilianDemitraszek]

This actually sounds like a pretty important problem. Maybe worth moving it up to backlog?

[cptartur]

We can discuss tomorrow, when exactly we want to resolve it. I agree it's a problem, though it's not breaking any runner functionality, "just" duplicating tests.