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use backtrace::Backtrace;
use core::ffi::c_void;
// This test only works on platforms which have a working `symbol_address`
// function for frames which reports the starting address of a symbol. As a
// result it's only enabled on a few platforms.
const ENABLED: bool = cfg!(all(
// Windows hasn't really been tested, and macOS doesn't support actually
// finding an enclosing frame, so disable this
target_os = "linux",
// On ARM finding the enclosing function is simply returning the ip itself.
not(target_arch = "arm"),
));
#[test]
#[inline(never)]
fn backtrace_new_unresolved_should_start_with_call_site_trace() {
if !ENABLED {
return;
}
let mut b = Backtrace::new_unresolved();
b.resolve();
println!("{b:?}");
assert!(!b.frames().is_empty());
let this_ip = backtrace_new_unresolved_should_start_with_call_site_trace as *mut c_void;
println!("this_ip: {:p}", this_ip);
let frame_ip = b.frames().first().unwrap().symbol_address();
assert_eq!(this_ip, frame_ip);
}
#[test]
#[inline(never)]
fn backtrace_new_should_start_with_call_site_trace() {
if !ENABLED {
return;
}
let b = Backtrace::new();
println!("{b:?}");
assert!(!b.frames().is_empty());
let this_ip = backtrace_new_should_start_with_call_site_trace as *mut c_void;
let frame_ip = b.frames().first().unwrap().symbol_address();
assert_eq!(this_ip, frame_ip);
let trace = format!("{b:?}");
// FIXME: need more stacktrace content tests
assert!(trace.ends_with("\n"));
}
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