1 files changed, 458 insertions, 0 deletions
diff --git a/library/std/src/process/tests.rs b/library/std/src/process/tests.rs
new file mode 100644
index 000000000..955ad6891
--- /dev/null
+++ b/library/std/src/process/tests.rs
@@ -0,0 +1,458 @@
+use crate::io::prelude::*;
+
+use super::{Command, Output, Stdio};
+use crate::io::ErrorKind;
+use crate::str;
+
+fn known_command() -> Command {
+    if cfg!(windows) { Command::new("help") } else { Command::new("echo") }
+}
+
+#[cfg(target_os = "android")]
+fn shell_cmd() -> Command {
+    Command::new("/system/bin/sh")
+}
+
+#[cfg(not(target_os = "android"))]
+fn shell_cmd() -> Command {
+    Command::new("/bin/sh")
+}
+
+#[test]
+#[cfg_attr(any(target_os = "vxworks"), ignore)]
+fn smoke() {
+    let p = if cfg!(target_os = "windows") {
+        Command::new("cmd").args(&["/C", "exit 0"]).spawn()
+    } else {
+        shell_cmd().arg("-c").arg("true").spawn()
+    };
+    assert!(p.is_ok());
+    let mut p = p.unwrap();
+    assert!(p.wait().unwrap().success());
+}
+
+#[test]
+#[cfg_attr(target_os = "android", ignore)]
+fn smoke_failure() {
+    match Command::new("if-this-is-a-binary-then-the-world-has-ended").spawn() {
+        Ok(..) => panic!(),
+        Err(..) => {}
+    }
+}
+
+#[test]
+#[cfg_attr(any(target_os = "vxworks"), ignore)]
+fn exit_reported_right() {
+    let p = if cfg!(target_os = "windows") {
+        Command::new("cmd").args(&["/C", "exit 1"]).spawn()
+    } else {
+        shell_cmd().arg("-c").arg("false").spawn()
+    };
+    assert!(p.is_ok());
+    let mut p = p.unwrap();
+    assert!(p.wait().unwrap().code() == Some(1));
+    drop(p.wait());
+}
+
+#[test]
+#[cfg(unix)]
+#[cfg_attr(any(target_os = "vxworks"), ignore)]
+fn signal_reported_right() {
+    use crate::os::unix::process::ExitStatusExt;
+
+    let mut p = shell_cmd().arg("-c").arg("read a").stdin(Stdio::piped()).spawn().unwrap();
+    p.kill().unwrap();
+    match p.wait().unwrap().signal() {
+        Some(9) => {}
+        result => panic!("not terminated by signal 9 (instead, {result:?})"),
+    }
+}
+
+pub 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).unwrap();
+    assert!(p.wait().unwrap().success());
+    return ret;
+}
+
+#[test]
+#[cfg_attr(any(target_os = "vxworks"), ignore)]
+fn stdout_works() {
+    if cfg!(target_os = "windows") {
+        let mut cmd = Command::new("cmd");
+        cmd.args(&["/C", "echo foobar"]).stdout(Stdio::piped());
+        assert_eq!(run_output(cmd), "foobar\r\n");
+    } else {
+        let mut cmd = shell_cmd();
+        cmd.arg("-c").arg("echo foobar").stdout(Stdio::piped());
+        assert_eq!(run_output(cmd), "foobar\n");
+    }
+}
+
+#[test]
+#[cfg_attr(any(windows, target_os = "vxworks"), ignore)]
+fn set_current_dir_works() {
+    let mut cmd = shell_cmd();
+    cmd.arg("-c").arg("pwd").current_dir("/").stdout(Stdio::piped());
+    assert_eq!(run_output(cmd), "/\n");
+}
+
+#[test]
+#[cfg_attr(any(windows, target_os = "vxworks"), ignore)]
+fn stdin_works() {
+    let mut p = shell_cmd()
+        .arg("-c")
+        .arg("read line; echo $line")
+        .stdin(Stdio::piped())
+        .stdout(Stdio::piped())
+        .spawn()
+        .unwrap();
+    p.stdin.as_mut().unwrap().write("foobar".as_bytes()).unwrap();
+    drop(p.stdin.take());
+    let mut out = String::new();
+    p.stdout.as_mut().unwrap().read_to_string(&mut out).unwrap();
+    assert!(p.wait().unwrap().success());
+    assert_eq!(out, "foobar\n");
+}
+
+#[test]
+#[cfg_attr(any(target_os = "vxworks"), ignore)]
+fn test_process_status() {
+    let mut status = if cfg!(target_os = "windows") {
+        Command::new("cmd").args(&["/C", "exit 1"]).status().unwrap()
+    } else {
+        shell_cmd().arg("-c").arg("false").status().unwrap()
+    };
+    assert!(status.code() == Some(1));
+
+    status = if cfg!(target_os = "windows") {
+        Command::new("cmd").args(&["/C", "exit 0"]).status().unwrap()
+    } else {
+        shell_cmd().arg("-c").arg("true").status().unwrap()
+    };
+    assert!(status.success());
+}
+
+#[test]
+fn test_process_output_fail_to_start() {
+    match Command::new("/no-binary-by-this-name-should-exist").output() {
+        Err(e) => assert_eq!(e.kind(), ErrorKind::NotFound),
+        Ok(..) => panic!(),
+    }
+}
+
+#[test]
+#[cfg_attr(any(target_os = "vxworks"), ignore)]
+fn test_process_output_output() {
+    let Output { status, stdout, stderr } = if cfg!(target_os = "windows") {
+        Command::new("cmd").args(&["/C", "echo hello"]).output().unwrap()
+    } else {
+        shell_cmd().arg("-c").arg("echo hello").output().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]
+#[cfg_attr(any(target_os = "vxworks"), ignore)]
+fn test_process_output_error() {
+    let Output { status, stdout, stderr } = if cfg!(target_os = "windows") {
+        Command::new("cmd").args(&["/C", "mkdir ."]).output().unwrap()
+    } else {
+        Command::new("mkdir").arg("./").output().unwrap()
+    };
+
+    assert!(status.code().is_some());
+    assert!(status.code() != Some(0));
+    assert_eq!(stdout, Vec::new());
+    assert!(!stderr.is_empty());
+}
+
+#[test]
+#[cfg_attr(any(target_os = "vxworks"), ignore)]
+fn test_finish_once() {
+    let mut prog = if cfg!(target_os = "windows") {
+        Command::new("cmd").args(&["/C", "exit 1"]).spawn().unwrap()
+    } else {
+        shell_cmd().arg("-c").arg("false").spawn().unwrap()
+    };
+    assert!(prog.wait().unwrap().code() == Some(1));
+}
+
+#[test]
+#[cfg_attr(any(target_os = "vxworks"), ignore)]
+fn test_finish_twice() {
+    let mut prog = if cfg!(target_os = "windows") {
+        Command::new("cmd").args(&["/C", "exit 1"]).spawn().unwrap()
+    } else {
+        shell_cmd().arg("-c").arg("false").spawn().unwrap()
+    };
+    assert!(prog.wait().unwrap().code() == Some(1));
+    assert!(prog.wait().unwrap().code() == Some(1));
+}
+
+#[test]
+#[cfg_attr(any(target_os = "vxworks"), ignore)]
+fn test_wait_with_output_once() {
+    let prog = if cfg!(target_os = "windows") {
+        Command::new("cmd").args(&["/C", "echo hello"]).stdout(Stdio::piped()).spawn().unwrap()
+    } else {
+        shell_cmd().arg("-c").arg("echo hello").stdout(Stdio::piped()).spawn().unwrap()
+    };
+
+    let Output { status, stdout, stderr } = prog.wait_with_output().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]
+#[cfg_attr(target_os = "vxworks", ignore)]
+fn test_override_env() {
+    use crate::env;
+
+    // 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().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]
+#[cfg_attr(target_os = "vxworks", ignore)]
+fn test_add_to_env() {
+    let result = env_cmd().env("RUN_TEST_NEW_ENV", "123").output().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]
+#[cfg_attr(target_os = "vxworks", ignore)]
+fn test_capture_env_at_spawn() {
+    use crate::env;
+
+    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().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}"
+    );
+}
+
+// Regression tests for #30858.
+#[test]
+fn test_interior_nul_in_progname_is_error() {
+    match Command::new("has-some-\0\0s-inside").spawn() {
+        Err(e) => assert_eq!(e.kind(), ErrorKind::InvalidInput),
+        Ok(_) => panic!(),
+    }
+}
+
+#[test]
+fn test_interior_nul_in_arg_is_error() {
+    match known_command().arg("has-some-\0\0s-inside").spawn() {
+        Err(e) => assert_eq!(e.kind(), ErrorKind::InvalidInput),
+        Ok(_) => panic!(),
+    }
+}
+
+#[test]
+fn test_interior_nul_in_args_is_error() {
+    match known_command().args(&["has-some-\0\0s-inside"]).spawn() {
+        Err(e) => assert_eq!(e.kind(), ErrorKind::InvalidInput),
+        Ok(_) => panic!(),
+    }
+}
+
+#[test]
+fn test_interior_nul_in_current_dir_is_error() {
+    match known_command().current_dir("has-some-\0\0s-inside").spawn() {
+        Err(e) => assert_eq!(e.kind(), ErrorKind::InvalidInput),
+        Ok(_) => panic!(),
+    }
+}
+
+// Regression tests for #30862.
+#[test]
+#[cfg_attr(target_os = "vxworks", ignore)]
+fn test_interior_nul_in_env_key_is_error() {
+    match env_cmd().env("has-some-\0\0s-inside", "value").spawn() {
+        Err(e) => assert_eq!(e.kind(), ErrorKind::InvalidInput),
+        Ok(_) => panic!(),
+    }
+}
+
+#[test]
+#[cfg_attr(target_os = "vxworks", ignore)]
+fn test_interior_nul_in_env_value_is_error() {
+    match env_cmd().env("key", "has-some-\0\0s-inside").spawn() {
+        Err(e) => assert_eq!(e.kind(), ErrorKind::InvalidInput),
+        Ok(_) => panic!(),
+    }
+}
+
+/// Tests that process creation flags work by debugging a process.
+/// Other creation flags make it hard or impossible to detect
+/// behavioral changes in the process.
+#[test]
+#[cfg(windows)]
+fn test_creation_flags() {
+    use crate::os::windows::process::CommandExt;
+    use crate::sys::c::{BOOL, DWORD, INFINITE};
+    #[repr(C, packed)]
+    struct DEBUG_EVENT {
+        pub event_code: DWORD,
+        pub process_id: DWORD,
+        pub thread_id: DWORD,
+        // This is a union in the real struct, but we don't
+        // need this data for the purposes of this test.
+        pub _junk: [u8; 164],
+    }
+
+    extern "system" {
+        fn WaitForDebugEvent(lpDebugEvent: *mut DEBUG_EVENT, dwMilliseconds: DWORD) -> BOOL;
+        fn ContinueDebugEvent(
+            dwProcessId: DWORD,
+            dwThreadId: DWORD,
+            dwContinueStatus: DWORD,
+        ) -> BOOL;
+    }
+
+    const DEBUG_PROCESS: DWORD = 1;
+    const EXIT_PROCESS_DEBUG_EVENT: DWORD = 5;
+    const DBG_EXCEPTION_NOT_HANDLED: DWORD = 0x80010001;
+
+    let mut child =
+        Command::new("cmd").creation_flags(DEBUG_PROCESS).stdin(Stdio::piped()).spawn().unwrap();
+    child.stdin.take().unwrap().write_all(b"exit\r\n").unwrap();
+    let mut events = 0;
+    let mut event = DEBUG_EVENT { event_code: 0, process_id: 0, thread_id: 0, _junk: [0; 164] };
+    loop {
+        if unsafe { WaitForDebugEvent(&mut event as *mut DEBUG_EVENT, INFINITE) } == 0 {
+            panic!("WaitForDebugEvent failed!");
+        }
+        events += 1;
+
+        if event.event_code == EXIT_PROCESS_DEBUG_EVENT {
+            break;
+        }
+
+        if unsafe {
+            ContinueDebugEvent(event.process_id, event.thread_id, DBG_EXCEPTION_NOT_HANDLED)
+        } == 0
+        {
+            panic!("ContinueDebugEvent failed!");
+        }
+    }
+    assert!(events > 0);
+}
+
+#[test]
+fn test_command_implements_send_sync() {
+    fn take_send_sync_type<T: Send + Sync>(_: T) {}
+    take_send_sync_type(Command::new(""))
+}
+
+// Ensure that starting a process with no environment variables works on Windows.
+// This will fail if the environment block is ill-formed.
+#[test]
+#[cfg(windows)]
+fn env_empty() {
+    let p = Command::new("cmd").args(&["/C", "exit 0"]).env_clear().spawn();
+    assert!(p.is_ok());
+}
+
+// See issue #91991
+#[test]
+#[cfg(windows)]
+fn run_bat_script() {
+    let tempdir = crate::sys_common::io::test::tmpdir();
+    let script_path = tempdir.join("hello.cmd");
+
+    crate::fs::write(&script_path, "@echo Hello, %~1!").unwrap();
+    let output = Command::new(&script_path)
+        .arg("fellow Rustaceans")
+        .stdout(crate::process::Stdio::piped())
+        .spawn()
+        .unwrap()
+        .wait_with_output()
+        .unwrap();
+    assert!(output.status.success());
+    assert_eq!(String::from_utf8_lossy(&output.stdout).trim(), "Hello, fellow Rustaceans!");
+}
+
+// See issue #95178
+#[test]
+#[cfg(windows)]
+fn run_canonical_bat_script() {
+    let tempdir = crate::sys_common::io::test::tmpdir();
+    let script_path = tempdir.join("hello.cmd");
+
+    crate::fs::write(&script_path, "@echo Hello, %~1!").unwrap();
+
+    // Try using a canonical path
+    let output = Command::new(&script_path.canonicalize().unwrap())
+        .arg("fellow Rustaceans")
+        .stdout(crate::process::Stdio::piped())
+        .spawn()
+        .unwrap()
+        .wait_with_output()
+        .unwrap();
+    assert!(output.status.success());
+    assert_eq!(String::from_utf8_lossy(&output.stdout).trim(), "Hello, fellow Rustaceans!");
+}