async-process/tests/std.rs

431 lines
11 KiB
Rust

//! These tests are borrowed from the `std::process` test suite.
use std::env;
use std::io;
use std::str;
use async_process::{Command, Output, Stdio};
use futures_lite::{future, prelude::*};
#[test]
fn smoke() {
future::block_on(async {
let p = if cfg!(target_os = "windows") {
Command::new("cmd").args(&["/C", "exit 0"]).spawn()
} else {
Command::new("true").spawn()
};
assert!(p.is_ok());
let mut p = p.unwrap();
assert!(p.status().await.unwrap().success());
})
}
#[test]
fn smoke_failure() {
assert!(Command::new("if-this-is-a-binary-then-the-world-has-ended")
.spawn()
.is_err());
}
#[test]
fn exit_reported_right() {
future::block_on(async {
let p = if cfg!(target_os = "windows") {
Command::new("cmd").args(&["/C", "exit 1"]).spawn()
} else {
Command::new("false").spawn()
};
assert!(p.is_ok());
let mut p = p.unwrap();
assert!(p.status().await.unwrap().code() == Some(1));
drop(p.status().await);
})
}
#[test]
#[cfg(unix)]
fn signal_reported_right() {
use std::os::unix::process::ExitStatusExt;
future::block_on(async {
let mut p = Command::new("/bin/sh")
.arg("-c")
.arg("read a")
.stdin(Stdio::piped())
.spawn()
.unwrap();
p.kill().unwrap();
match p.status().await.unwrap().signal() {
Some(9) => {}
result => panic!("not terminated by signal 9 (instead, {:?})", result),
}
})
}
pub async fn run_output(mut cmd: Command) -> String {
let p = cmd.spawn();
assert!(p.is_ok());
let mut p = p.unwrap();
assert!(p.stdout.is_some());
let mut ret = String::new();
p.stdout
.as_mut()
.unwrap()
.read_to_string(&mut ret)
.await
.unwrap();
assert!(p.status().await.unwrap().success());
ret
}
#[test]
fn stdout_works() {
future::block_on(async {
if cfg!(target_os = "windows") {
let mut cmd = Command::new("cmd");
cmd.args(&["/C", "echo foobar"]).stdout(Stdio::piped());
assert_eq!(run_output(cmd).await, "foobar\r\n");
} else {
let mut cmd = Command::new("echo");
cmd.arg("foobar").stdout(Stdio::piped());
assert_eq!(run_output(cmd).await, "foobar\n");
}
})
}
#[test]
#[cfg_attr(windows, ignore)]
fn set_current_dir_works() {
future::block_on(async {
let mut cmd = Command::new("/bin/sh");
cmd.arg("-c")
.arg("pwd")
.current_dir("/")
.stdout(Stdio::piped());
assert_eq!(run_output(cmd).await, "/\n");
})
}
#[test]
#[cfg_attr(windows, ignore)]
fn stdin_works() {
future::block_on(async {
let mut p = Command::new("/bin/sh")
.arg("-c")
.arg("read line; echo $line")
.stdin(Stdio::piped())
.stdout(Stdio::piped())
.spawn()
.unwrap();
p.stdin
.as_mut()
.unwrap()
.write("foobar".as_bytes())
.await
.unwrap();
drop(p.stdin.take());
let mut out = String::new();
p.stdout
.as_mut()
.unwrap()
.read_to_string(&mut out)
.await
.unwrap();
assert!(p.status().await.unwrap().success());
assert_eq!(out, "foobar\n");
})
}
#[test]
fn test_process_status() {
future::block_on(async {
let mut status = if cfg!(target_os = "windows") {
Command::new("cmd")
.args(&["/C", "exit 1"])
.status()
.await
.unwrap()
} else {
Command::new("false").status().await.unwrap()
};
assert!(status.code() == Some(1));
status = if cfg!(target_os = "windows") {
Command::new("cmd")
.args(&["/C", "exit 0"])
.status()
.await
.unwrap()
} else {
Command::new("true").status().await.unwrap()
};
assert!(status.success());
})
}
#[test]
fn test_process_output_fail_to_start() {
future::block_on(async {
match Command::new("/no-binary-by-this-name-should-exist")
.output()
.await
{
Err(e) => assert_eq!(e.kind(), io::ErrorKind::NotFound),
Ok(..) => panic!(),
}
})
}
#[test]
fn test_process_output_output() {
future::block_on(async {
let Output {
status,
stdout,
stderr,
} = if cfg!(target_os = "windows") {
Command::new("cmd")
.args(&["/C", "echo hello"])
.output()
.await
.unwrap()
} else {
Command::new("echo").arg("hello").output().await.unwrap()
};
let output_str = str::from_utf8(&stdout).unwrap();
assert!(status.success());
assert_eq!(output_str.trim().to_string(), "hello");
assert_eq!(stderr, Vec::new());
})
}
#[test]
fn test_process_output_error() {
future::block_on(async {
let Output {
status,
stdout,
stderr,
} = if cfg!(target_os = "windows") {
Command::new("cmd")
.args(&["/C", "mkdir ."])
.output()
.await
.unwrap()
} else {
Command::new("mkdir").arg("./").output().await.unwrap()
};
assert!(status.code() == Some(1));
assert_eq!(stdout, Vec::new());
assert!(!stderr.is_empty());
})
}
#[test]
fn test_finish_once() {
future::block_on(async {
let mut prog = if cfg!(target_os = "windows") {
Command::new("cmd").args(&["/C", "exit 1"]).spawn().unwrap()
} else {
Command::new("false").spawn().unwrap()
};
assert!(prog.status().await.unwrap().code() == Some(1));
})
}
#[test]
fn test_finish_twice() {
future::block_on(async {
let mut prog = if cfg!(target_os = "windows") {
Command::new("cmd").args(&["/C", "exit 1"]).spawn().unwrap()
} else {
Command::new("false").spawn().unwrap()
};
assert!(prog.status().await.unwrap().code() == Some(1));
assert!(prog.status().await.unwrap().code() == Some(1));
})
}
#[test]
fn test_wait_with_output_once() {
future::block_on(async {
let prog = if cfg!(target_os = "windows") {
Command::new("cmd")
.args(&["/C", "echo hello"])
.stdout(Stdio::piped())
.spawn()
.unwrap()
} else {
Command::new("echo")
.arg("hello")
.stdout(Stdio::piped())
.spawn()
.unwrap()
};
let Output {
status,
stdout,
stderr,
} = prog.output().await.unwrap();
let output_str = str::from_utf8(&stdout).unwrap();
assert!(status.success());
assert_eq!(output_str.trim().to_string(), "hello");
assert_eq!(stderr, Vec::new());
})
}
#[cfg(all(unix, not(target_os = "android")))]
pub fn env_cmd() -> Command {
Command::new("env")
}
#[cfg(target_os = "android")]
pub fn env_cmd() -> Command {
let mut cmd = Command::new("/system/bin/sh");
cmd.arg("-c").arg("set");
cmd
}
#[cfg(windows)]
pub fn env_cmd() -> Command {
let mut cmd = Command::new("cmd");
cmd.arg("/c").arg("set");
cmd
}
#[test]
fn test_override_env() {
future::block_on(async {
// In some build environments (such as chrooted Nix builds), `env` can
// only be found in the explicitly-provided PATH env variable, not in
// default places such as /bin or /usr/bin. So we need to pass through
// PATH to our sub-process.
let mut cmd = env_cmd();
cmd.env_clear().env("RUN_TEST_NEW_ENV", "123");
if let Some(p) = env::var_os("PATH") {
cmd.env("PATH", p);
}
let result = cmd.output().await.unwrap();
let output = String::from_utf8_lossy(&result.stdout).to_string();
assert!(
output.contains("RUN_TEST_NEW_ENV=123"),
"didn't find RUN_TEST_NEW_ENV inside of:\n\n{}",
output
);
})
}
#[test]
fn test_add_to_env() {
future::block_on(async {
let result = env_cmd()
.env("RUN_TEST_NEW_ENV", "123")
.output()
.await
.unwrap();
let output = String::from_utf8_lossy(&result.stdout).to_string();
assert!(
output.contains("RUN_TEST_NEW_ENV=123"),
"didn't find RUN_TEST_NEW_ENV inside of:\n\n{}",
output
);
})
}
#[test]
fn test_capture_env_at_spawn() {
future::block_on(async {
let mut cmd = env_cmd();
cmd.env("RUN_TEST_NEW_ENV1", "123");
// This variable will not be present if the environment has already
// been captured above.
env::set_var("RUN_TEST_NEW_ENV2", "456");
let result = cmd.output().await.unwrap();
env::remove_var("RUN_TEST_NEW_ENV2");
let output = String::from_utf8_lossy(&result.stdout).to_string();
assert!(
output.contains("RUN_TEST_NEW_ENV1=123"),
"didn't find RUN_TEST_NEW_ENV1 inside of:\n\n{}",
output
);
assert!(
output.contains("RUN_TEST_NEW_ENV2=456"),
"didn't find RUN_TEST_NEW_ENV2 inside of:\n\n{}",
output
);
})
}
#[test]
#[cfg(unix)]
fn child_status_preserved_with_kill_on_drop() {
future::block_on(async {
let p = Command::new("true").kill_on_drop(true).spawn().unwrap();
// Calling output, since it takes ownership of the child
// Child::status would work, but without special care,
// dropping p inside of output would kill the subprocess early,
// and report the wrong exit status
let res = p.output().await;
assert!(res.unwrap().status.success());
})
}
#[test]
#[cfg(windows)]
fn child_as_raw_handle() {
use std::os::windows::io::AsRawHandle;
use windows_sys::Win32::System::Threading::GetProcessId;
future::block_on(async {
let p = Command::new("cmd.exe")
.arg("/C")
.arg("pause")
.kill_on_drop(true)
.spawn()
.unwrap();
let std_pid = p.id();
assert!(std_pid > 0);
let handle = p.as_raw_handle();
// We verify that we have the correct handle by obtaining the PID
// with the Windows API rather than via std:
let win_pid = unsafe { GetProcessId(handle as _) };
assert_eq!(win_pid, std_pid);
})
}
#[test]
#[cfg(unix)]
fn test_spawn_multiple_with_stdio() {
let mut cmd = Command::new("/bin/sh");
cmd.arg("-c")
.arg("echo foo; echo bar 1>&2")
.stdout(Stdio::piped())
.stderr(Stdio::piped());
future::block_on(async move {
let p1 = cmd.spawn().unwrap();
let out1 = p1.output().await.unwrap();
assert_eq!(out1.stdout, b"foo\n");
assert_eq!(out1.stderr, b"bar\n");
let p2 = cmd.spawn().unwrap();
let out2 = p2.output().await.unwrap();
assert_eq!(out2.stdout, b"foo\n");
assert_eq!(out2.stderr, b"bar\n");
});
}