为什么在此 MSpec 测试中出现 NullReferenceException？

Question

所以我安装了这些 nuget 包：

在这些参考文献中达到顶峰：

我使用 NCrunch。我有这个规格：

namespace GlobPatternMatching.Tests
{
    using FluentAssertions;

    using Machine.Fakes;
    using Machine.Specifications;

    [Subject(typeof(GlobMatching))]
    public class When_Given_Literal : WithSubject<GlobMatching>
    {
        private static string pattern = "path";

        private static string[] result;

        private Establish context => () =>
            {
                pattern = "path";
            };

        private Because of => () => result = Subject.GetGlobs(pattern);

        private It should_return_path_in_the_array = () =>
            {
                result[0].Should().Be("path");
            };
    }
}

为此class：

namespace GlobPatternMatching
{
    using System;

    public class GlobMatching
    {
        public string[] GetGlobs(string pattern)
        {
            return pattern.Split(new[] { '/' }, StringSplitOptions.RemoveEmptyEntries);
        }
    }
}

直接进行 TDD，我得到空引用异常。当我调试时，我无法逐步执行该方法，并且所有规范 class 字段均为空.....

我不觉得我遗漏了什么，但如果你不介意看一看并弄清楚我在这里做错了什么，那会很好。我正在使用最新的 VS2015、NCrunch 等...

Answer 1

你不会相信这是什么问题...

private Establish context => () =>
{
    pattern = "path";
};

private Because of => () => result = Subject.GetGlobs(pattern);

我用 => 代替了 =.....

// ----------------------\/-------
private Establish context = () =>
{
    pattern = "path";
};

// ----------------\/------------    
private Because of = () => result = Subject.GetGlobs(pattern);

为什么在此 MSpec 测试中出现 NullReferenceException？

Why do I get a NullReferenceException in this MSpec test?

c#

mspec

ncrunch