1 #![cfg(feature = "std")]
2 
3 use tracing_mock::subscriber;
4 
5 #[cfg_attr(target_arch = "wasm32", wasm_bindgen_test::wasm_bindgen_test)]
6 #[test]
no_subscriber_disables_global()7 fn no_subscriber_disables_global() {
8     // Reproduces https://github.com/tokio-rs/tracing/issues/1999
9     let (subscriber, handle) = subscriber::mock().only().run_with_handle();
10     tracing::subscriber::set_global_default(subscriber)
11         .expect("setting global default must succeed");
12     tracing::subscriber::with_default(tracing::subscriber::NoSubscriber::default(), || {
13         tracing::info!("this should not be recorded");
14     });
15     handle.assert_finished();
16 }
17