How To Read UnitTest Project's App.Config From Test With HostType("Moles")

I have the folowing tests:

[TestClass]
public class GeneralTest
{
    [TestMethod]
    public void VerifyAppDomainHasConfigurationSettings()
    {
        string value = ConfigurationManager.AppSettings["TestValue"];
        Assert.IsFalse(String.IsNullOrEmpty(value), "No App.Config found.");
    }

    [TestMethod]
    [HostType("Moles")]
    public void VerifyAppDomainHasConfigurationSettingsMoles()
    {
        string value = ConfigurationManager.AppSettings["TestValue"];
        Assert.IsFalse(String.IsNullOrEmpty(value), "No App.Config found.");
    }
}

The only difference between them is [HostType("Moles")]. But the first passes and the second fails. How can I read App.config from the second test?

Or 开发者_如何学Cmay be I can add some another config file in other place?

Assuming you are trying to access values in appSettings, how about just adding the configuration at the beginning of your test. Something like:

ConfigurationManager.AppSettings["Key"] = "Value";

Then when your test tries to read the AppSettings "Key", "Value" will be returned.

You just add your "App.Config" file to the unit test project . It will read automatically.

See http://social.msdn.microsoft.com/Forums/en/pex/thread/9b4b9ec5-582c-41e8-8b9c-1bb9457ba3f6

In the mean time, as a work around, you could try adding the configuration settings to Microsoft.Moles.VsHost.x86.exe.config

    [ClassInitialize]
    public static void MyClassInitialize(TestContext testContext)
    {
        System.Configuration.Moles.MConfigurationManager.GetSectionString =
            (string configurationName) =>
                {
                    ExeConfigurationFileMap fileMap = new ExeConfigurationFileMap();
                    Assembly assembly = Assembly.GetExecutingAssembly();
                    fileMap.ExeConfigFilename = assembly.Location + ".config";
                    Configuration config = ConfigurationManager.OpenMappedExeConfiguration(fileMap, ConfigurationUserLevel.None);
                    object section = config.GetSection(configurationName);
                    if (section is DefaultSection)
                    {
                        ConfigurationSection configurationSection = (ConfigurationSection) section;
                        Type sectionType = Type.GetType(configurationSection.SectionInformation.Type);
                        if (sectionType != null)
                        {
                            IConfigurationSectionHandler sectionHandler =
                                (IConfigurationSectionHandler)AppDomain.CurrentDomain.CreateInstanceAndUnwrap(sectionType.Assembly.FullName, sectionType.FullName);
                            section = 
                                sectionHandler.Create(
                                    configurationSection.SectionInformation.GetParentSection(), 
                                    null,
                                    XElement.Parse(configurationSection.SectionInformation.GetRawXml()).ToXmlNode());
                        }
                    }

                    return section;
                };
    }

I ran across this issue at work and didn't like any of these answers. I also have the problem that the configuration file is being read in a static constructor which means I can't Mole ConfigurationManager before the static constructor is executed.

I tried this on my home computer and found that the configuration file was being read correctly. It turns out I was using Pex 0.94.51006.1 at home. This is slightly older than the current one. I was able to find a download for the older academic version: http://research.microsoft.com/en-us/downloads/d2279651-851f-4d7a-bf05-16fd7eb26559/default.aspx

I installed this on my work computer and everything is working perfectly. At this point, I'm downgrading to the older version until a newer working version is released.

This is what I am using to get the correct AppConfig and ConnectionString sections:

var config = System.Configuration.ConfigurationManager.OpenExeConfiguration(Reflection.Assembly.GetExecutingAssembly().Location);

typeof(Configuration.ConfigurationElementCollection).GetField("bReadOnly", Reflection.BindingFlags.Instance | Reflection.BindingFlags.NonPublic).SetValue(System.Configuration.ConfigurationManager.ConnectionStrings, false);
foreach (Configuration.ConnectionStringSettings conn in config.ConnectionStrings.ConnectionStrings)
    System.Configuration.ConfigurationManager.ConnectionStrings.Add(conn);

foreach (Configuration.KeyValueConfigurationElement conf in config.AppSettings.Settings)
    System.Configuration.ConfigurationManager.AppSettings(conf.Key) = conf.Value;

Saw the ConnectionString part here