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54cc45d5b4
The `Display` implementation for `Backtrace` used to print
stack backtrace:
but that print was later removed. To make the existing test pass, the
print was added to the existing test. But it doesn't make sense to check
for something that the test itself does since that will not detect any
regressions in the implementation of `Backtrace`. Fully remove the
checks.
69 lines
2.0 KiB
Rust
69 lines
2.0 KiB
Rust
//@ run-pass
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//@ ignore-android FIXME #17520
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//@ needs-subprocess
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//@ ignore-openbsd no support for libbacktrace without filename
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//@ ignore-fuchsia Backtraces not symbolized
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//@ compile-flags:-g
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//@ compile-flags:-Cstrip=none
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use std::env;
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use std::process::Command;
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use std::str;
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fn main() {
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let args: Vec<String> = env::args().collect();
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if args.len() >= 2 && args[1] == "force" {
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println!("{}", std::backtrace::Backtrace::force_capture());
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} else if args.len() >= 2 {
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println!("{}", std::backtrace::Backtrace::capture());
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} else {
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runtest(&args[0]);
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println!("test ok");
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}
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}
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fn runtest(me: &str) {
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env::remove_var("RUST_BACKTRACE");
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env::remove_var("RUST_LIB_BACKTRACE");
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let p = Command::new(me).arg("a").env("RUST_BACKTRACE", "1").output().unwrap();
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assert!(p.status.success());
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assert!(String::from_utf8_lossy(&p.stdout).contains("backtrace::main"));
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let p = Command::new(me).arg("a").env("RUST_BACKTRACE", "0").output().unwrap();
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assert!(p.status.success());
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assert!(String::from_utf8_lossy(&p.stdout).contains("disabled backtrace\n"));
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let p = Command::new(me).arg("a").output().unwrap();
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assert!(p.status.success());
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assert!(String::from_utf8_lossy(&p.stdout).contains("disabled backtrace\n"));
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let p = Command::new(me)
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.arg("a")
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.env("RUST_LIB_BACKTRACE", "1")
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.env("RUST_BACKTRACE", "1")
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.output()
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.unwrap();
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assert!(p.status.success());
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let p = Command::new(me)
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.arg("a")
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.env("RUST_LIB_BACKTRACE", "0")
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.env("RUST_BACKTRACE", "1")
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.output()
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.unwrap();
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assert!(p.status.success());
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assert!(String::from_utf8_lossy(&p.stdout).contains("disabled backtrace\n"));
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let p = Command::new(me)
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.arg("force")
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.env("RUST_LIB_BACKTRACE", "0")
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.env("RUST_BACKTRACE", "0")
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.output()
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.unwrap();
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assert!(p.status.success());
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let p = Command::new(me).arg("force").output().unwrap();
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assert!(p.status.success());
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}
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