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我正在研究 NSpec 框架。

这是我的例子。我为一个简单的 HttpRequester 类编写了规范：

using Moq;
using NSpec;

namespace FooBrowser.UnitTests.BDD
{
    class HttpRequester_specification : nspec
    {
        private HttpRequester requester;

        private string sentData;
        private int sendTimes;

        private readonly Mock<IConnection> connectionMock;
        private string resource;

        public HttpRequester_specification()
        {
            connectionMock = new Mock<IConnection>();

            connectionMock
                .Setup(x => x.Send(It.IsAny<string>()))
                .Callback<string>(data =>
                {
                    sendTimes++;
                    sentData = data;
                });
        }

        void given_opened_connection_with_no_recent_sends()
        {
            before = () =>
            {
                sendTimes = 0;
            };

            context["when HttpRequester is constructed"] = () =>
            {
                before = () => requester = new HttpRequester(connectionMock.Object);

                it["should not do any request"] = () => sendTimes.should_be(0);

                context["when performing request"] = () =>
                {
                    act = () => requester.Request(resource);

                    context["when resource is not specified"] = () =>
                    {
                        it["should do 1 request"] = () => sendTimes.should_be(1);
                        it["should send HTTP GET / HTTP/1.0"] = () => sentData.should_be("GET / HTTP/1.0");
                    };

                    context["when resource is index.html"] = () =>
                    {
                        before = () => resource = "index.html";

                        it["should do 1 request"] = () => sendTimes.should_be(1);
                        it["should send HTTP GET /index.html HTTP/1.0"] = () => sentData.should_be("GET /index.html HTTP/1.0");
                    };
                };
            };
        }
    }
}

如您所见[“应该做 1 个请求”] = () => sendTimes.should_be(1); 写了两次。

我尝试将其移至外部上下文，如下所示：

context["when performing request"] = () =>
{
    act = () => requester.Request(resource);

    context["when resource is not specified"] = () =>
    {
        it["should send HTTP GET / HTTP/1.0"] = () => sentData.should_be("GET / HTTP/1.0");
    };

    context["when resource is index.html"] = () =>
    {
        before = () => resource = "index.html";

        it["should send HTTP GET /index.html HTTP/1.0"] = () => sentData.should_be("GET /index.html HTTP/1.0");
    };

    it["should do 1 request"] = () => sendTimes.should_be(1);
};

但这会导致它[“应该做 1 个请求”] = () => sendTimes.should_be(1); 检查一次外部上下文，而不是我想要的内部上下文。

那么，我可以以某种方式将其移至外部上下文吗？

还是更容易向 NSpec 贡献一些代码来启用这种行为？

我在这里找到了类似的问题重用 NSpec 规范，但我想保留 lambda 表达式语法（没有继承）以在 1 个地方查看所有规范。

4

1 回答 1

2

很抱歉看到这两个星期都没有得到答复，但我只是通过提取类似的方法来解决它

void ItShouldRequestExactly(int n)
{
    it["should do " + n + " request"] = () => sendTimes.should_be(n);
}

在大多数情况下，这对我来说已经足够干燥了。但是，当您传入在规范执行时实际初始化的对象时，您会遇到一些微妙的问题，但是对于这个简单的示例，它非常适合。遗憾的是，我没有看到另一种将此类 mixin 断言注入上下文的方法。

于 2013-01-31T10:14:07.887 回答