Function setup 

pub fn setup()

Set up a simple logger for tests.

This function ensures the logger is initialized exactly once using LazyLock, making it safe to use with both cargo test and cargo nextest run.

Recommendation

While this works with regular cargo test, we recommend using cargo nextest run for:

• Process-per-test isolation
• Faster parallel test execution
• Better test output and reporting

Install nextest with: cargo install cargo-nextest

For more information, visit: https://nexte.st