thin-provisioning-tools/tests/common/process.rs

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Rust
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use anyhow::Result;
use std::ffi::{OsStr, OsString};
//------------------------------------------
#[macro_export]
macro_rules! args {
( $( $arg: expr ),* ) => {
{
use std::ffi::OsStr;
let args = [$( OsStr::new($arg) ),*];
args
}
};
}
// Returns stdout. The command must return zero.
pub fn run_ok<S, I>(program: S, args: I) -> Result<String>
where
S: AsRef<OsStr>,
I: IntoIterator,
I::Item: Into<OsString>,
{
let command = duct::cmd(program.as_ref(), args)
.stdout_capture()
.stderr_capture();
let output = command.run()?;
assert!(output.status.success());
let stdout = std::str::from_utf8(&output.stdout[..])
.unwrap()
.trim_end_matches(|c| c == '\n' || c == '\r')
.to_string();
Ok(stdout)
}
// Returns the entire output. The command must return zero.
pub fn run_ok_raw<S, I>(program: S, args: I) -> Result<std::process::Output>
where
S: AsRef<OsStr>,
I: IntoIterator,
I::Item: Into<OsString>,
{
let command = duct::cmd(program.as_ref(), args)
.stdout_capture()
.stderr_capture();
let output = command.run()?;
assert!(output.status.success());
Ok(output)
}
// Returns stderr, a non zero status must be returned
pub fn run_fail<S, I>(program: S, args: I) -> Result<String>
where
S: AsRef<OsStr>,
I: IntoIterator,
I::Item: Into<OsString>,
{
let command = duct::cmd(program.as_ref(), args)
.stdout_capture()
.stderr_capture();
let output = command.unchecked().run()?;
assert!(!output.status.success());
let stderr = std::str::from_utf8(&output.stderr[..]).unwrap().to_string();
Ok(stderr)
}
// Returns the entire output, a non zero status must be returned
pub fn run_fail_raw<S, I>(program: S, args: I) -> Result<std::process::Output>
where
S: AsRef<OsStr>,
I: IntoIterator,
I::Item: Into<OsString>,
{
let command = duct::cmd(program.as_ref(), args)
.stdout_capture()
.stderr_capture();
let output = command.unchecked().run()?;
assert!(!output.status.success());
Ok(output)
}
//------------------------------------------