35 lines
1.1 KiB
Rust
35 lines
1.1 KiB
Rust
#![cfg(feature = "std")]
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use tracing_mock::*;
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#[test]
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fn scoped_clobbers_global() {
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// Reproduces https://github.com/tokio-rs/tracing/issues/2050
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let (scoped, scoped_handle) = subscriber::mock()
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.event(event::msg("before global"))
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.event(event::msg("before drop"))
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.done()
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.run_with_handle();
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let (global, global_handle) = subscriber::mock()
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.event(event::msg("after drop"))
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.done()
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.run_with_handle();
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// Set a scoped default subscriber, returning a guard.
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let guard = tracing::subscriber::set_default(scoped);
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tracing::info!("before global");
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// Now, set the global default.
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tracing::subscriber::set_global_default(global)
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.expect("global default should not already be set");
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// This event should still be collected by the scoped default.
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tracing::info!("before drop");
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// Drop the guard. Now, the global default subscriber should be used.
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drop(guard);
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tracing::info!("after drop");
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scoped_handle.assert_finished();
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global_handle.assert_finished();
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}
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