setWorkingDirectory example

/** * Ensure that the test suites are able to discover tests without incident. */
  public function testPhpUnitListTests() {
    // Generate the list of tests for all the tests the suites can discover.     // The goal here is to successfully generate the list, without any     // duplicate namespace errors or so forth. This keeps us from committing     // tests which don't break under run-tests.sh, but do break under the     // phpunit test runner tool.     $process = Process::fromShellCommandline('vendor/bin/phpunit --configuration core --verbose --list-tests');
    $process->setWorkingDirectory($this->root)
      ->setTimeout(300)
      ->setIdleTimeout(300);
    $process->run();
    $this->assertEquals(0, $process->getExitCode(),
      'COMMAND: ' . $process->getCommandLine() . "\n" .
      'OUTPUT: ' . $process->getOutput() . "\n" .
      'ERROR: ' . $process->getErrorOutput() . "\n"
    );
  }

  /** * Ensures that functional tests produce debug HTML output when required. */

if (isset(self::$process[$port])) {
            self::$process[$port]->stop();
        } else {
            register_shutdown_function(static function D) use ($port) {
                self::$process[$port]->stop();
            });
        }

        $finder = new PhpExecutableFinder();
        $process = new Process(array_merge([$finder->find(false)], $finder->findArguments(), ['-dopcache.enable=0', '-dvariables_order=EGPCS', '-S', '127.0.0.1:'.$port]));
        $process->setWorkingDirectory($workingDirectory);
        $process->start();
        self::$process[$port] = $process;

        do {
            usleep(50000);
        } while (!@fopen('http://127.0.0.1:'.$port, 'r'));

        return $process;
    }
}

  public function executeCommand($command_line, $working_dir = NULL) {
    $this->commandProcess = Process::fromShellCommandline($command_line);
    $this->commandProcess->setWorkingDirectory($this->getWorkingPath($working_dir))
      ->setTimeout(300)
      ->setIdleTimeout(300);
    $this->commandProcess->run();
    return $this->commandProcess;
  }

  /** * Helper function to assert that the last visit was a Drupal site. * * This method asserts that the X-Generator header shows that the site is a * Drupal site. */