ProtractorHelper: Run Protractor on multiple environments from a .NET Integration test

ProtractorHelper.cs

using System;
using System.ComponentModel;
using System.Diagnostics;

// Put this in whatever namespace you want, then construct and run it in an Integration test.
//  The Run() method returns an exit code where 0 means the test was successful and anything else means it wasn't.
//  So just assert that the result of Run() is 0, like so: `Assert.AreEqual(0, resultOfProtractorHelperDotRun);`
public class ProtractorHelper
  {
      private readonly string _configPath;
      private readonly string _environment;
      private readonly int _timeout;

      public ProtractorHelper(string relativePath, string environment = null, int timeout = 60000)
      {
          _configPath = AppDomain.CurrentDomain.BaseDirectory + "../../../" + relativePath;
          // In your CI server, set an environment variable "IntegrationTestEnvironment" before each run.
          //  Then use browser.params.environment in Protractor to compose the baseUrl for your test.
          _environment = environment ?? Environment.GetEnvironmentVariable("IntegrationTestEnvironment");
          _timeout = timeout;
      }

      public int Run()
      {
          // Kill any leftover console processes from previous runs
          foreach (Process p in Process.GetProcessesByName("cmd"))
          {
              try
              {
                  p.Kill();
                  p.WaitForExit(5000);
              }
              catch (Win32Exception)
              {
                  // process was terminating or can't be terminated
              }
              catch (InvalidOperationException)
              {
                  // process has already exited
              }
          }

          // Run "protractor path/to/protractor.conf.js --params.environment=local|dev|stage|live"
          var protractorInfo = new ProcessStartInfo("cmd.exe")
          {
              Arguments = string.Format("/C protractor {0} --params.environment={1}", _configPath, _environment),
              CreateNoWindow = true,
              RedirectStandardInput = true,
              RedirectStandardOutput = true,
              RedirectStandardError = true,
              UseShellExecute = false
          };

          var protractor = Process.Start(protractorInfo);

          // Wait for protractor tests to end, then get the output and errors
          protractor.WaitForExit(_timeout);
          string output = protractor.StandardOutput.ReadToEnd();
          string errors = protractor.StandardError.ReadToEnd();
          int exitCode = protractor.ExitCode;
          
          protractor.Close();

          Console.WriteLine("[Protractor Output:] " + output);
          if (errors.Length > 0)
          {
              Console.Error.WriteLine("[Protractor Errors:] " + errors);
          }

          return exitCode;
      }
  }