..self
    }
  }

  pub(crate) fn expected_exit_code(self, expected_exit_code: i32) -> Self {
    Self {
      expected_exit_code,
      ..self
    }
  }

  pub(crate) fn temp_dir(self, tempdir: TempDir) -> Self {
    Self { tempdir, ..self }
  }

  pub(crate) fn command(&self) -> Command {
    let mut command = Command::new(executable_path("ord"));

    if let Some(rpc_server_url) = &self.rpc_server_url {
      let cookiefile = self.tempdir.path().join("cookie");
      fs::write(&cookiefile, "username:password").unwrap();
      command.args([
        "--rpc-url",
        rpc_server_url,
        "--cookie-file",
        cookiefile.to_str().unwrap(),
      ]);
    }

    command
      .env("ORD_INTEGRATION_TEST", "1")
      .stdin(Stdio::piped())
      .stdout(Stdio::piped())
      .stderr(Stdio::piped())
      .current_dir(&self.tempdir)
      .arg("--data-dir")
      .arg(self.tempdir.path())
      .args(&self.args);

    command
  }

  fn run(self) -> (TempDir, String) {
    let child = self.command().spawn().unwrap();