Starting IIS Express before running Selenium tests on ASP.NET 5 / MVC 6

Question

I have a VS solution with a "web" project (ASP.NET v5) and a "web.Tests" project (xunit.net 2.1beta) -- one of the tests is checking the rendered pages, and I'm trying to have the test bring up the site automatically, so I don't need to have it running separately/manually.

namespace web.Tests
{
  public abstract class BrowserTest : IDisposable
  {
    protected readonly IisExpress server;
    protected readonly IWebDriver driver;

    protected BrowserTest()
    {
      var project = ProjectLocation.FromPath(Path.Combine(SolutionRoot, "src", "web", "wwwroot"));
      var app = new WebApplication(project, 8080);
      server = new IisExpress(app);
      server.Start();
      driver = new PhantomJSDriver();
    }

    public void Dispose()
    {
      server.Stop();
    }
  }
}

The server starts and stops fine, but I get an HTTP 500 when I hit a page, with a System.InvalidOperationException:
A type named 'StartupProduction' or 'Startup' could not be found in assembly 'web.Tests'.

How do I specify that I want to run Startup.cs from the "web" project, not the "web.Tests" project?

woo, this question just got me the tumbleweed badge -- apparently it's that awesome! — Steve Desmond, Aug 11 '15 at 17:30

Steve Desmond · Accepted Answer · 2015-11-19T17:02:57.770

This was fixed by switching to Kestrel as the host -- especially since Kestrel is now the only supported host in ASP.NET 5

using System;
using System.Diagnostics;
using System.IO;
using OpenQA.Selenium;
using OpenQA.Selenium.PhantomJS;

namespace Test
{
    public abstract class PhantomFixture : IDisposable
    {
        public readonly IWebDriver driver;
        private readonly Process server;

        protected PhantomFixture()
        {
            server = Process.Start(new ProcessStartInfo
            {
                FileName = "dnx.exe",
                Arguments = "web",
                WorkingDirectory = Path.Combine(Directory.GetCurrentDirectory(), "..", "Web")
            });
            driver = new PhantomJSDriver();
        }

        public void Dispose()
        {
            server.Kill();
            driver.Dispose();
        }
    }
}

(obviously replacing the arguments in Path.Combine(...) with where your web app is located)

Thanks. How do you stop it though? Just kill the process or do you virtually send a "ctrl+c"? — Dealdiane, Nov 17 '15 at 19:58
yeah, capture the process, then kill it on disposal -- see updated snippet — Steve Desmond, Nov 19 '15 at 17:04

score 2 · Answer 2 · answered Aug 04 '16 at 21:51

After a bit of trail and error with DotNet Core, here is what I came up with. Note that my pathing is a little different to yours as I have my test project separated from my web project.

   private System.Diagnostics.Process _WebServerProcess;

   [OneTimeSetUp]
    public void SetupTest()
    {

       _WebServerProcess = new System.Diagnostics.Process
       {
           EnableRaisingEvents = false,
           StartInfo = {
               WorkingDirectory = Path.Combine(System.AppDomain.CurrentDomain.BaseDirectory, "..", "..", "..", "MyWebProjectName"),
               FileName = $"dotnet.exe",
               Arguments = " run"
           }
       };
    }
    private void KillWebServer()
    {            
        IEnumerable<Process> processes =  Process.GetProcesses()
            .Where(p => p.ProcessName == "MyWebProjectName.exe" && p.HasExited == false)
            .AsEnumerable();

        foreach (Process process in processes)         
            process.Kill();

        if (_WebServerProcess != null)
        {
            if (!_WebServerProcess.HasExited)
                _WebServerProcess.Kill();
            _WebServerProcess = null;
        }
    }

    public void Dispose()
    {
        KillWebServer();            
    }

Killing both the process that was started (eg, DotNet.exe & the webproject exe) seems be be the trick to ensuring that Kestral stopped.

Starting IIS Express before running Selenium tests on ASP.NET 5 / MVC 6

2 Answers2

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