这是Moq的正确用法吗？

我有以下界面，为我提供了使用Cookie的方法：

/// <summary>
/// Provides an interface that makes it easy to work with cookies.
/// </summary>
public interface ICookies
{
    #region Properties

    /// <summary>
    /// Gets or sets the value of the <see cref="ICookies"/>.
    /// </summary>
    /// <param name="name">The name of the cookie.</param>
    /// <returns>A string that represents the value in this cookie.</returns>
    string this[string name] { get; set; }

    #endregion

    #region Methods

    /// <summary>
    /// Writes a new cookie.
    /// </summary>
    /// <param name="name">The name of the cookie.</param>
    /// <param name="expiration">The <see cref="DateTime"/> when this cookie expires.</param>
    /// <param name="value">The value that the cookie should have.</param>
    void Create(string name, string value, DateTime expiration);

    /// <summary>
    /// Checks wether a cookie with a specific name does exist.
    /// </summary>
    /// <param name="name">The name of the cookie.</param>
    /// <returns><see langword="true"/> if the cookie does exists, otherwise, <see langword="false"/>.</returns>
    bool DoesExist(string name);

    #endregion
}

我有一个以下经理，该经理从上面使用ICookie界面来创建cookie。该类如下所示：

/// <summary>
///     Provides an easy way to work with cookies on the server.
/// </summary>
public static class CookieManager
{
    #region Methods

    /// <summary>
    ///     Writes a new cookie on the.
    /// </summary>
    /// <param name="cookies">The <see cref="ICookies" /> that is responsible for working with cookies.</param>
    /// <param name="name">The name of the cookie.</param>
    /// <param name="value">The value of the cookie.</param>
    public static void Write(ICookies cookies, string name, string value)
    {
        if (!Exists(cookies, name))
        {
            cookies.Create(name, value, DateTime.Now.AddYears(1));
        }

        cookies[name] = value;
    }

    /// <summary>
    ///     Reads a cookie.
    /// </summary>
    /// <param name="cookies">The <see cref="ICookies" /> that is responsible for working with cookies.</param>
    /// <param name="name">The name of the cookie to read.</param>
    /// <returns>The value of the cookie.</returns>
    /// <exception cref="KeyNotFoundException">The cookie is not existing.</exception>
    public static string Read(ICookies cookies, string name)
    {
        return cookies[name];
    }

    /// <summary>
    ///     Check if a cookie does exists.
    /// </summary>
    /// <param name="cookies">The <see cref="ICookies" /> that is responsible for working with cookies.</param>
    /// <param name="name">The name of the cookie.</param>
    /// <returns><see langword="true" /> when the cookie does exists, otherwise <see langword="false" />.</returns>
    public static bool Exists(ICookies cookies, string name)
    {
        return cookies.DoesExist(name);
    }

    #endregion
}

现在，我想编写一个模拟cookie接口以确保其通过的单元测试。

我想检查以下内容：

• 当我调用CookieManager.Write时，应该编写一个cookie，并且应该能够使用CookieManager.Read函数读取它。正确的方法是什么，因为我已经尝试了所有方法（使用Verifyable，Setup，SetupGet，SetupSet）。

非常重要的一点是，我正在与Moq合作。

这是我目前所拥有的：

我有一个不变的第一：

protected const string CookieReturnValue = "ReturnValue";

然后，我得到了ICookie的模拟：

protected override void Arrange()
   {
       cookies = new Mock<ICookies>();

       cookies.Setup(c => c.Create(It.IsAny<string>(), It.IsAny<string>(), It.IsAny<DateTime>()));
       cookies.SetupGet(c => c[It.IsAny<string>()]).Returns(CookieReturnValue).Verifiable();
   }

然后执行测试：

protected override void Act()
{
    CookieManager.Write(cookies.Object, "MyCookie", "MyValue");
    CookieManager.Read(cookies.Object, "MyCookie");
}

最后，测试已通过验证：

cookies.Verify();

现在，该测试通过了，但是我不太确定这是否是正确的测试方法，因为在我的模拟中，我将返回常量“ CookieReturnValue”。我应该能够将其设置为在cookies.Setup（）方法中作为第二个参数输入的值，其中第二个参数保存cookie的值。

这里的主要问题是，如果我没有编写cookie，测试也会通过。我需要确保只有在编写cookie并再次读取相同的cookie时，测试才能通过。

如果这是正确的测试方法，或者应该在哪里进行调整以确保其正常工作，可以有人吗？