exception - F# 单元测试错误 : xUnit.net/TestDriven.Net

Question

因此，我从 Pluralsight 获得了以下内容，并且介绍该类(class)的小伙伴显然可以顺利运行代码，但是，当我运行它时，我收到错误消息:

"Test failed ‘T:Messaging’ : Couldn’t find type with name ‘Messaging’"

Test failed 'T: Couldn't find type with name

任何想法(赞赏)？

namespace Ploeh.Samples

open System

module Messaging =    
    type Envelope<'a> = {
        Id      : Guid
        Created : DateTimeOffset
        Item    : 'a }

    let envelop getId getTime item = {
        Id = Guid "1CF889F8-201F-44DF-BC86-77227651D3EE"
        Created = DateTimeOffset.MinValue
        Item = item }

module MessagingTests =
    open Xunit

    type Foo = { Text : string; Number : int }

    [<Fact>]
    let ``enevelope returns correct results`` () =
        let getId _ = Guid "1CF889F8-201F-44DF-BC86-77227651D3EE"
        let getTime _ = DateTimeOffset( 636322011751405346L, 
                                        TimeSpan.FromHours(-4.0) )
        let item = { Text = "Bar"; Number = 42 }

        let actual = Messaging.envelop getId getTime item

        Assert.Equal ( Guid "1CF889F8-201F-44DF-BC86-77227651D3EE",
                       actual.Id )
        Assert.Equal ( DateTimeOffset( 636322011751405346L, 
                                       TimeSpan.FromHours(-4.0) ),
                       actual.Created )
        Assert.Equal ( item, actual.Item )  

Answer 1

我设法通过将测试分成单独的文件和顶级模块来让它工作。出于某种原因，除了这个“设置”之外的任何东西都不起作用，例如，单独的文件但在较低级别的模块中，或者 namespace 和模块声明分别......我不确定这是否是我的目标的具体说明.Net 4.7 而不是教师使用的任何东西或 Visual Studio 2017 的问题或其他问题。似乎 TestDriven.Net 对命名空间/模块系统提出了质疑，并被它们弄糊涂了……

在第一个文件中:

namespace Ploeh.Samples

open System

module Messaging =    
    type Envelope<'a> = {
        Id      : Guid
        Created : DateTimeOffset
        Item    : 'a }

    let envelop getId getTime item = {
        Id = Guid "1CF889F8-201F-44DF-BC86-77227651D3EE"
        Created = DateTimeOffset.MinValue
        Item = item }

在第二个文件中:

module Ploeh.Samples.MessagingTests 

open System
open Messaging
open Xunit

type Foo = { Text : string; Number : int }

[<Fact>]
let ``enevelope returns correct results`` () =
let getId _ = Guid "1CF889F8-201F-44DF-BC86-77227651D3EE"
let getTime _ = DateTimeOffset( 636322011751405346L, 
                                TimeSpan.FromHours(-4.0) )
let item = { Text = "Bar"; Number = 42 }

let actual = Messaging.envelop getId getTime item

Assert.Equal ( Guid "1CF889F8-201F-44DF-BC86-77227651D3EE",
               actual.Id )
Assert.Equal ( DateTimeOffset( 636322011751405346L, 
                               TimeSpan.FromHours(-4.0) ),
               actual.Created )
Assert.Equal ( item, actual.Item )