45 lines
1.4 KiB
Rust
45 lines
1.4 KiB
Rust
#![feature(option_expect_none, option_unwrap_none)]
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//! Test that panic locations for `#[track_caller]` functions in std have the correct
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//! location reported.
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use std::sync::atomic::{AtomicUsize, Ordering};
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static HOOK_COUNT: AtomicUsize = AtomicUsize::new(0);
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fn main() {
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// inspect the `PanicInfo` we receive to ensure the right file is the source
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std::panic::set_hook(Box::new(|info| {
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HOOK_COUNT.fetch_add(1, Ordering::Relaxed);
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let actual = info.location().unwrap();
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if actual.file() != file!() {
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eprintln!("expected a location in the test file, found {:?}", actual);
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panic!();
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}
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}));
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fn assert_panicked(f: impl FnOnce() + std::panic::UnwindSafe) {
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std::panic::catch_unwind(f).unwrap_err();
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}
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let nope: Option<()> = None;
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assert_panicked(|| nope.unwrap());
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assert_panicked(|| nope.expect(""));
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let yep: Option<()> = Some(());
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assert_panicked(|| yep.unwrap_none());
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assert_panicked(|| yep.expect_none(""));
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let oops: Result<(), ()> = Err(());
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assert_panicked(|| oops.unwrap());
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assert_panicked(|| oops.expect(""));
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let fine: Result<(), ()> = Ok(());
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assert_panicked(|| fine.unwrap_err());
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assert_panicked(|| fine.expect_err(""));
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// Cleanup: reset to default hook.
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drop(std::panic::take_hook());
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assert_eq!(HOOK_COUNT.load(Ordering::Relaxed), 8);
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}
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