まず、.NET 4.5 / C# 5 / Visual Studio 2012 の "Fakes and Stubs" と呼ばれる Moles のリリース バージョンに移行することを強くお勧めします。
System.Configurations 名前空間は Mole/Fake 型と互換性がないため、スタブ化する必要があります。Moles フレームワークを使用してスタブを作成するには、System.Configuration.AppSettingsReader 型のインターフェイスを作成するだけです。Moles コンパイラは、インターフェイスを自動的にスタブ型に変換します。
プロジェクトに追加できるインターフェイスは次のとおりです。
using System;
namespace YOUR_NAMESPACE_HERE
{
/// <summary>
/// IOC object for stubbing System.Configuration.AppSettingsReader.
/// Provides a method for reading values of a particular type from
/// the configuration.
/// </summary>
interface IAppSettingsReader
{
/// <summary>
/// Gets the value for a specified key from the
/// System.Configuration.ConfigurationSettings.AppSettings property
/// and returns an object of the specified type containing the
/// value from the configuration.
/// </summary>
/// <param name="key">The key for which to get the value.</param>
/// <param name="type">The type of the object to return.</param>
/// <returns>The value of the specified key</returns>
/// <exception cref="System.ArgumentNullException">key is null.
/// - or -
/// type is null.</exception>
/// <exception cref="System.InvalidOperationException">key does
/// not exist in the <appSettings> configuration section.
/// - or -
/// The value in the <appSettings> configuration section
/// for key is not of type type.</exception>
public object GetValue(string key, Type type);
}
}
ここにもスタブクラスがあります:
using System;
using System.Configuration;
namespace YOUR_NAMESPACE_HERE
{
/// <summary>
/// Production stub for System.Configuration.AppSettingsReader.
/// Provides a method for reading values of a particular type from
/// the configuration.
/// </summary>
public class AppSettingsReaderStub : IAppSettingsReader
{
/// <summary>
/// Gets the value for a specified key from the
/// System.Configuration.ConfigurationSettings.AppSettings property
/// and returns an object of the specified type containing the value
/// from the configuration.
/// </summary>
/// <param name="key">The key for which to get the value.</param>
/// <param name="type">The type of the object to return.</param>
/// <returns>The value of the specified key</returns>
/// <exception cref="System.ArgumentNullException">key is null.
/// - or -
/// type is null.</exception>
/// <exception cref="System.InvalidOperationException">key does not
/// exist in the <appSettings> configuration section.
/// - or -
/// The value in the <appSettings> configuration section for
/// key is not of type type.</exception>
public object GetValue(string key, Type type)
{
var reader = new AppSettingsReader();
object result = reader.GetValue(key, type);
return result;
}
}
}