你如何使用 Moq 模拟会话对象集合 [英] How do you mock the session object collection using Moq

问题描述

我正在使用 shanselmann 的 MvcMockHelper 类来模拟一些使用 Moq 的 HttpContext 内容，但是我遇到的问题是能够在我的 MVC 控制器中为我的模拟会话对象分配一些东西，然后能够在我的单元测试中读取相同的值以进行验证.

I am using shanselmann's MvcMockHelper class to mock up some HttpContext stuff using Moq but the issue I am having is being able to assign something to my mocked session object in my MVC controller and then being able to read that same value in my unit test for verification purposes.

我的问题是如何将存储集合分配给模拟的会话对象，以允许诸如 session["UserName"] = "foo" 之类的代码保留foo"值并使其在单元测试中可用.

My question is how do you assign a storage collection to the mocked session object to allow code such as session["UserName"] = "foo" to retain the "foo" value and have it be available in the unit test.

推荐答案

我从 Scott Hanselman 的 MVCMockHelper 开始，添加一个小类并进行如下所示的修改，以允许控制器正常使用Session，并通过单元测试来验证控制器设置的值.

I started with Scott Hanselman's MVCMockHelper, added a small class and made the modifications shown below to allow the controller to use Session normally and the unit test to verify the values that were set by the controller.

/// <summary>
/// A Class to allow simulation of SessionObject
/// </summary>
public class MockHttpSession : HttpSessionStateBase
{
    Dictionary<string, object> m_SessionStorage = new Dictionary<string, object>();

    public override object this[string name]
    {
        get { return m_SessionStorage[name]; }
        set { m_SessionStorage[name] = value; }
    }
}

//In the MVCMockHelpers I modified the FakeHttpContext() method as shown below
public static HttpContextBase FakeHttpContext()
{
    var context = new Mock<HttpContextBase>();
    var request = new Mock<HttpRequestBase>();
    var response = new Mock<HttpResponseBase>();
    var session = new MockHttpSession();
    var server = new Mock<HttpServerUtilityBase>();

    context.Setup(ctx => ctx.Request).Returns(request.Object);
    context.Setup(ctx => ctx.Response).Returns(response.Object);
    context.Setup(ctx => ctx.Session).Returns(session);
    context.Setup(ctx => ctx.Server).Returns(server.Object);

    return context.Object;
}

//Now in the unit test i can do
AccountController acct = new AccountController();
acct.SetFakeControllerContext();
acct.SetBusinessObject(mockBO.Object);

RedirectResult results = (RedirectResult)acct.LogOn(userName, password, rememberMe, returnUrl);
Assert.AreEqual(returnUrl, results.Url);
Assert.AreEqual(userName, acct.Session["txtUserName"]);
Assert.IsNotNull(acct.Session["SessionGUID"]);

它并不完美，但足以进行测试.

It's not perfect but it works enough for testing.

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