For unit tests that need to load a file. Locating the file is always a problem, instead make it a resource and then call SerializedResource() to write the files to disk. To locate the file just call GetFullname("file1.txt") to get the true name. #nunit #mstest

embedded-resource-for-unit-tests.cs

private string BasePath
{
    get
    {
        return Path.GetDirectoryName(Assembly.GetExecutingAssembly().Location);
    }
}

private void SerializeResources()
{
    foreach (var s in Assembly.GetExecutingAssembly().GetManifestResourceNames())
    {
        string filename = BasePath + "\\" + s;
        using (StreamWriter writer = new StreamWriter(filename))
        using (var reader = new StreamReader(Assembly.GetExecutingAssembly().GetManifestResourceStream(s)))
        {
            writer.Write(reader.ReadToEnd());
        }
    }
}

private string GetFullname(string filename)
{
    return BasePath + "\\" + GetType().Namespace + "." + filename;
}

Add a default constructor to the unit test class. Inside the constructor, call SerializedResources() to write the resources to disk. This will work in NUnit and MsTest