293 lines
7.3 KiB
Rust
293 lines
7.3 KiB
Rust
use super::*;
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use pretty_assertions::assert_eq;
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macro_rules! test {
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{
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name: $name:ident,
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$(justfile: $justfile:expr,)?
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$(args: ($($arg:tt),*),)?
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$(env: { $($env_key:literal : $env_value:literal,)* },)?
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$(stdin: $stdin:expr,)?
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$(stdout: $stdout:expr,)?
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$(stdout_regex: $stdout_regex:expr,)?
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$(stderr: $stderr:expr,)?
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$(stderr_regex: $stderr_regex:expr,)?
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$(status: $status:expr,)?
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$(shell: $shell:expr,)?
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} => {
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#[test]
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fn $name() {
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let test = crate::test::Test::new();
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$($(let test = test.arg($arg);)*)?
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$($(let test = test.env($env_key, $env_value);)*)?
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$(let test = test.justfile($justfile);)?
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$(let test = test.shell($shell);)?
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$(let test = test.status($status);)?
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$(let test = test.stderr($stderr);)?
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$(let test = test.stderr_regex($stderr_regex);)?
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$(let test = test.stdin($stdin);)?
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$(let test = test.stdout($stdout);)?
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$(let test = test.stdout_regex($stdout_regex);)?
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test.run();
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}
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}
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}
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pub(crate) struct Test {
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pub(crate) args: Vec<String>,
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pub(crate) current_dir: PathBuf,
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pub(crate) env: BTreeMap<String, String>,
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pub(crate) justfile: Option<String>,
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pub(crate) shell: bool,
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pub(crate) status: i32,
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pub(crate) stderr: String,
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pub(crate) stderr_regex: Option<Regex>,
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pub(crate) stdin: String,
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pub(crate) stdout: String,
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pub(crate) stdout_regex: Option<Regex>,
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pub(crate) tempdir: TempDir,
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pub(crate) unindent_stdout: bool,
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}
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impl Test {
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pub(crate) fn new() -> Self {
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Self::with_tempdir(tempdir())
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}
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pub(crate) fn with_tempdir(tempdir: TempDir) -> Self {
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Self {
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args: Vec::new(),
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current_dir: PathBuf::new(),
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env: BTreeMap::new(),
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justfile: Some(String::new()),
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shell: true,
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status: EXIT_SUCCESS,
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stderr: String::new(),
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stderr_regex: None,
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stdin: String::new(),
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stdout: String::new(),
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stdout_regex: None,
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tempdir,
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unindent_stdout: true,
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}
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}
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pub(crate) fn arg(mut self, val: &str) -> Self {
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self.args.push(val.to_owned());
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self
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}
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pub(crate) fn args(mut self, args: &[&str]) -> Self {
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for arg in args {
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self = self.arg(arg);
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}
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self
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}
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pub(crate) fn current_dir(mut self, path: impl AsRef<Path>) -> Self {
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self.current_dir = path.as_ref().to_owned();
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self
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}
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pub(crate) fn env(mut self, key: &str, val: &str) -> Self {
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self.env.insert(key.to_string(), val.to_string());
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self
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}
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pub(crate) fn justfile(mut self, justfile: impl Into<String>) -> Self {
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self.justfile = Some(justfile.into());
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self
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}
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pub(crate) fn justfile_path(&self) -> PathBuf {
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self.tempdir.path().join("justfile")
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}
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pub(crate) fn no_justfile(mut self) -> Self {
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self.justfile = None;
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self
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}
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pub(crate) fn shell(mut self, shell: bool) -> Self {
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self.shell = shell;
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self
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}
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pub(crate) fn status(mut self, exit_status: i32) -> Self {
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self.status = exit_status;
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self
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}
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pub(crate) fn stderr(mut self, stderr: impl Into<String>) -> Self {
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self.stderr = stderr.into();
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self
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}
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pub(crate) fn stderr_regex(mut self, stderr_regex: impl AsRef<str>) -> Self {
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self.stderr_regex = Some(Regex::new(&format!("(?m)^{}$", stderr_regex.as_ref())).unwrap());
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self
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}
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pub(crate) fn stdin(mut self, stdin: impl Into<String>) -> Self {
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self.stdin = stdin.into();
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self
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}
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pub(crate) fn stdout(mut self, stdout: impl Into<String>) -> Self {
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self.stdout = stdout.into();
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self
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}
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pub(crate) fn stdout_regex(mut self, stdout_regex: impl AsRef<str>) -> Self {
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self.stdout_regex = Some(Regex::new(&format!("(?m)^{}$", stdout_regex.as_ref())).unwrap());
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self
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}
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pub(crate) fn tree(self, mut tree: Tree) -> Self {
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tree.map(|_name, content| unindent(content));
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tree.instantiate(self.tempdir.path()).unwrap();
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self
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}
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pub(crate) fn unindent_stdout(mut self, unindent_stdout: bool) -> Self {
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self.unindent_stdout = unindent_stdout;
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self
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}
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}
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impl Test {
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pub(crate) fn run(self) -> TempDir {
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if let Some(justfile) = &self.justfile {
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let justfile = unindent(justfile);
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fs::write(self.justfile_path(), justfile).unwrap();
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}
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let stdout = if self.unindent_stdout {
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unindent(&self.stdout)
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} else {
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self.stdout
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};
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let stderr = unindent(&self.stderr);
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let mut dotenv_path = self.tempdir.path().to_path_buf();
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dotenv_path.push(".env");
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fs::write(dotenv_path, "DOTENV_KEY=dotenv-value").unwrap();
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let mut command = Command::new(executable_path("just"));
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if self.shell {
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command.args(["--shell", "bash"]);
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}
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let mut child = command
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.args(self.args)
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.envs(&self.env)
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.current_dir(self.tempdir.path().join(self.current_dir))
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.stdin(Stdio::piped())
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.stdout(Stdio::piped())
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.stderr(Stdio::piped())
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.spawn()
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.expect("just invocation failed");
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{
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let mut stdin_handle = child.stdin.take().expect("failed to unwrap stdin handle");
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stdin_handle
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.write_all(self.stdin.as_bytes())
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.expect("failed to write stdin to just process");
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}
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let output = child
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.wait_with_output()
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.expect("failed to wait for just process");
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fn compare<T: PartialEq + Debug>(name: &str, have: T, want: T) -> bool {
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let equal = have == want;
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if !equal {
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eprintln!("Bad {}: {}", name, Comparison::new(&have, &want));
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}
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equal
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}
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let output_stdout = str::from_utf8(&output.stdout).unwrap();
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let output_stderr = str::from_utf8(&output.stderr).unwrap();
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if let Some(ref stdout_regex) = self.stdout_regex {
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if !stdout_regex.is_match(output_stdout) {
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panic!(
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"Stdout regex mismatch:\n{:?}\n!~=\n/{:?}/",
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output_stderr, stdout_regex
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);
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}
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}
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if let Some(ref stderr_regex) = self.stderr_regex {
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if !stderr_regex.is_match(output_stderr) {
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panic!(
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"Stderr regex mismatch:\n{:?}\n!~=\n/{:?}/",
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output_stderr, stderr_regex
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);
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}
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}
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if !compare("status", output.status.code().unwrap(), self.status)
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| (self.stdout_regex.is_none() && !compare("stdout", output_stdout, &stdout))
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| (self.stderr_regex.is_none() && !compare("stderr", output_stderr, &stderr))
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{
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panic!("Output mismatch.");
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}
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if self.status == EXIT_SUCCESS {
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test_round_trip(self.tempdir.path());
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}
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self.tempdir
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}
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}
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#[derive(PartialEq, Debug)]
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struct Output<'a> {
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stdout: &'a str,
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stderr: &'a str,
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status: i32,
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}
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fn test_round_trip(tmpdir: &Path) {
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println!("Reparsing...");
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let output = Command::new(executable_path("just"))
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.current_dir(tmpdir)
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.arg("--dump")
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.output()
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.expect("just invocation failed");
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if !output.status.success() {
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panic!("dump failed: {}", output.status);
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}
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let dumped = String::from_utf8(output.stdout).unwrap();
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let reparsed_path = tmpdir.join("reparsed.just");
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fs::write(&reparsed_path, &dumped).unwrap();
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let output = Command::new(executable_path("just"))
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.current_dir(tmpdir)
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.arg("--justfile")
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.arg(&reparsed_path)
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.arg("--dump")
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.output()
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.expect("just invocation failed");
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if !output.status.success() {
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panic!("reparse failed: {}", output.status);
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}
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let reparsed = String::from_utf8(output.stdout).unwrap();
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assert_eq!(reparsed, dumped, "reparse mismatch");
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}
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