49 lines
1.6 KiB
Rust
49 lines
1.6 KiB
Rust
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use backtrace::Backtrace;
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// 50-character module name
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mod _234567890_234567890_234567890_234567890_234567890 {
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// 50-character struct name
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#[allow(non_camel_case_types)]
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pub struct _234567890_234567890_234567890_234567890_234567890<T>(T);
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impl<T> _234567890_234567890_234567890_234567890_234567890<T> {
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#[allow(dead_code)]
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pub fn new() -> crate::Backtrace {
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crate::Backtrace::new()
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}
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}
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}
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// Long function names must be truncated to (MAX_SYM_NAME - 1) characters.
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// Only run this test for msvc, since gnu prints "<no info>" for all frames.
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#[test]
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#[cfg(all(windows, target_env = "msvc"))]
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fn test_long_fn_name() {
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use _234567890_234567890_234567890_234567890_234567890::_234567890_234567890_234567890_234567890_234567890 as S;
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// 10 repetitions of struct name, so fully qualified function name is
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// atleast 10 * (50 + 50) * 2 = 2000 characters long.
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// It's actually longer since it also includes `::`, `<>` and the
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// name of the current module
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let bt = S::<S<S<S<S<S<S<S<S<S<i32>>>>>>>>>>::new();
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println!("{:?}", bt);
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let mut found_long_name_frame = false;
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for frame in bt.frames() {
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let symbols = frame.symbols();
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if symbols.is_empty() {
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continue;
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}
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if let Some(function_name) = symbols[0].name() {
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let function_name = function_name.as_str().unwrap();
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if function_name.contains("::_234567890_234567890_234567890_234567890_234567890") {
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found_long_name_frame = true;
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assert!(function_name.len() > 200);
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}
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}
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}
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assert!(found_long_name_frame);
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}
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