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Capture stdin for roc and roc run tests

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This commit is contained in:
Richard Feldman 2022-05-05 23:30:40 -04:00
parent e7ac4dac96
commit 6f35d1891a
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GPG key ID: 7E4127D1E4241798
5 changed files with 58 additions and 18 deletions
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23
cli_utils/src/helpers.rs
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@ -45,17 +45,34 @@ pub fn path_to_roc_binary() -> PathBuf {
path
}
pub fn run_roc<I: IntoIterator<Item = S>, S: AsRef<OsStr>>(args: I) -> Out {
pub fn run_roc<I: IntoIterator<Item = S>, S: AsRef<OsStr>>(args: I, stdin_vals: &[&str]) -> Out {
let mut cmd = Command::new(path_to_roc_binary());
for arg in args {
cmd.arg(arg);
}
let output = cmd
.output()
let mut child = cmd
.stdin(Stdio::piped())
.stdout(Stdio::piped())
.stderr(Stdio::piped())
.spawn()
.expect("failed to execute compiled `roc` binary in CLI test");
{
let stdin = child.stdin.as_mut().expect("Failed to open stdin");
for stdin_str in stdin_vals.iter() {
stdin
.write_all(stdin_str.as_bytes())
.expect("Failed to write to stdin");
}
}
let output = child
.wait_with_output()
.expect("failed to get output for compiled `roc` binary in CLI test");
Out {
stdout: String::from_utf8(output.stdout).unwrap(),
stderr: String::from_utf8(output.stderr).unwrap(),