use crank_observability::{
    ObservabilityConfig, ObservabilityInitError, RedactionLimits, ServiceIdentity, init,
};

fn config() -> ObservabilityConfig {
    ObservabilityConfig::new(
        ServiceIdentity::try_new("admin-api", "0.3.1", "test").expect("valid test identity"),
        "info",
        RedactionLimits::default(),
    )
}

#[test]
fn repeated_global_initialization_returns_typed_error() {
    let _lifecycle = init(config()).expect("first initialization must succeed");
    let error = init(config()).expect_err("second initialization must fail");

    assert!(matches!(
        error,
        ObservabilityInitError::SubscriberAlreadyInitialized
    ));
}