1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
|
//@ run-pass
//@ ignore-android FIXME #17520
//@ ignore-wasm32 spawning processes is not supported
//@ ignore-openbsd no support for libbacktrace without filename
//@ ignore-sgx no processes
//@ ignore-fuchsia Backtraces not symbolized
//@ compile-flags:-g
//@ compile-flags:-Cstrip=none
use std::env;
use std::process::Command;
use std::str;
fn main() {
let args: Vec<String> = env::args().collect();
if args.len() >= 2 && args[1] == "force" {
println!("stack backtrace:\n{}", std::backtrace::Backtrace::force_capture());
} else if args.len() >= 2 {
println!("stack backtrace:\n{}", std::backtrace::Backtrace::capture());
} else {
runtest(&args[0]);
println!("test ok");
}
}
fn runtest(me: &str) {
env::remove_var("RUST_BACKTRACE");
env::remove_var("RUST_LIB_BACKTRACE");
let p = Command::new(me).arg("a").env("RUST_BACKTRACE", "1").output().unwrap();
assert!(p.status.success());
assert!(String::from_utf8_lossy(&p.stdout).contains("stack backtrace:\n"));
assert!(String::from_utf8_lossy(&p.stdout).contains("backtrace::main"));
let p = Command::new(me).arg("a").env("RUST_BACKTRACE", "0").output().unwrap();
assert!(p.status.success());
assert!(String::from_utf8_lossy(&p.stdout).contains("disabled backtrace\n"));
let p = Command::new(me).arg("a").output().unwrap();
assert!(p.status.success());
assert!(String::from_utf8_lossy(&p.stdout).contains("disabled backtrace\n"));
let p = Command::new(me)
.arg("a")
.env("RUST_LIB_BACKTRACE", "1")
.env("RUST_BACKTRACE", "1")
.output()
.unwrap();
assert!(p.status.success());
assert!(String::from_utf8_lossy(&p.stdout).contains("stack backtrace:\n"));
let p = Command::new(me)
.arg("a")
.env("RUST_LIB_BACKTRACE", "0")
.env("RUST_BACKTRACE", "1")
.output()
.unwrap();
assert!(p.status.success());
assert!(String::from_utf8_lossy(&p.stdout).contains("disabled backtrace\n"));
let p = Command::new(me)
.arg("force")
.env("RUST_LIB_BACKTRACE", "0")
.env("RUST_BACKTRACE", "0")
.output()
.unwrap();
assert!(p.status.success());
assert!(String::from_utf8_lossy(&p.stdout).contains("stack backtrace:\n"));
let p = Command::new(me).arg("force").output().unwrap();
assert!(p.status.success());
assert!(String::from_utf8_lossy(&p.stdout).contains("stack backtrace:\n"));
}
|
