linux 中的 F# 单元测试项目与单声道（FAKE，NUnit 3）

Question

我正在尝试使用 Forge to set up the project and install nuget packages. Forge creates a build.fsx file which uses FAKE. I've tried to adjust this build file (in order to add tests) with inspiration from this tutorial http://fsharp.github.io/FAKE/gettingstarted.html 在 linux 中使用单声道设置一个非常简单的测试 F# 项目。然而，本教程使用 C# 进行测试，并假设 Windows 以 .Net 作为环境。我想使用 F# 进行测试，linux 使用单声道作为环境。

我想我几乎可以正常工作了，但是我从 NUnit 收到了一些神秘的错误消息。当运行连接 build.fsx 文件时，我在最后得到以下错误：

...
Invalid argument: -nologo
The value '/home/michel/Documents/FSHARP/UnitTests/test/NUnit.Test.MyTests.dll' is not valid for option '--labels'.
Invalid argument: -xml:./test/TestResults.xml
Running build failed.
Error:
NUnit test failed (255).

---------------------------------------------------------------------
Build Time Report
---------------------------------------------------------------------
Target      Duration
------      --------
Clean       00:00:00.0036366
Build       00:00:00.0402828
BuildTest   00:00:00.4911710
Total:      00:00:00.7494956
Status:     Failure
---------------------------------------------------------------------
  1) Fake.UnitTestCommon+FailedTestsException: NUnit test failed (255).
  at Fake.NUnitSequential.NUnit (Microsoft.FSharp.Core.FSharpFunc`2 setParams, IEnumerable`1 assemblies) <0x41d27e50 + 0x0039f> in <filename unknown>:0 
  at FSI_0001+clo@32-4.Invoke (Microsoft.FSharp.Core.Unit _arg4) <0x41d27dc0 + 0x0006f> in <filename unknown>:0 
  at Fake.TargetHelper+targetFromTemplate@195[a].Invoke (Microsoft.FSharp.Core.Unit unitVar0) <0x41cd59b0 + 0x00023> in <filename unknown>:0 
  at Fake.TargetHelper.runSingleTarget (Fake.TargetTemplate`1 target) <0x41ccb490 + 0x000ca> in <filename unknown>:0

我的 build.fsx 文件看起来像这样

// include Fake libs
#r "./packages/FAKE/tools/FakeLib.dll"

open Fake


// Directories
let buildDir  = "./build/"
let testDir = "./test/"

// version info
let version = "0.1"  // or retrieve from CI server

// Targets
Target "Clean" (fun _ ->
    CleanDirs [buildDir; testDir]
)

Target "Build" (fun _ ->
    //MSBuildDebug buildDir "Build" appReferences
    !! "/UnitTesting/*.fsproj"
    |> MSBuildRelease buildDir "Build"
    |> Log "AppBuild-Output: "
)

Target "BuildTest" (fun _ ->
                    !! "src/NUnit.Test.MyTests/*.fsproj"
                    |> MSBuildDebug testDir "Build"
                    |> Log "TestBuild-Output: "
)

Target "Test" (fun _ ->
               !! (testDir + "/NUnit.Test.MyTests.dll")
               |> NUnit (fun p ->
                         { p with
                               ToolPath = "packages/NUnit.ConsoleRunner/tools"
                               //DisableShadowCopy = true;
                               OutputFile = testDir + "TestResults.xml" })
)

Target "Default" (fun _ -> trace "HEEEELLOOOOOO world from FAKE!!!")

"Clean" ==> "Build" ==> "BuildTest" ==> "Test" ==> "Default"

RunTargetOrDefault "Default"

FAKE好像在packages/NUnit.ConsoleRunner/tools目录下找文件nunit-console.exe，但是没有这个文件。但是，有一个 nunit3-console.exe 文件，所以我只复制了一个名为 nunit-console.exe.

的文件

我的简单测试文件 NUnit.Test.MyTests.fs 如下所示：

namespace NUnit.Test.MyTests

module testmodule =

    open NUnit.Framework

    let SayHello name = "Hello"

    [<TestFixture>]
    type myFixture() =

        [<Test>]
        member self.myTest() =
            Assert.AreEqual("Hello World!", SayHello "World")

并且文件 test/NUnit.Test.MyTests.dll 似乎生成得很好。

神秘的错误消息是什么意思，我该如何修复它以便我可以运行我的测试？

Answer 1

正如 rmunn 在评论中提到的，我需要使用函数 NUnit3 因为我使用的是 NUnit 3.4.1 版。该函数驻留在 FAKE.Testing 模块 http://fsharp.github.io/FAKE/apidocs/fake-testing-nunit3.html 中。我修改了我的 build.fsx 文件，现在它看起来像下面这样：

// include Fake libs
#r "./packages/FAKE/tools/FakeLib.dll"

open Fake
open Fake.Testing // NUnit3 is in here


// Directories
let buildDir  = "./build/"
let testDir = "./test/"

// version info
let version = "0.1"  // or retrieve from CI server
// Targets
Target "Clean" (fun _ ->
    CleanDirs [buildDir; testDir]
)

Target "Build" (fun _ ->
    !! "/UnitTesting/*.fsproj"
    |> MSBuildRelease buildDir "Build"
    |> Log "AppBuild-Output: "
)

Target "BuildTest" (fun _ ->
                    !! "src/NUnit.Test.MyTests/*.fsproj"
                    |> MSBuildDebug testDir "Build"
                    |> Log "TestBuild-Output: "
)

Target "Test" (fun _ ->
               !! (testDir + "/NUnit.Test.*.dll")
               |> NUnit3 (fun p ->
                         { p with
                               ToolPath = "packages/NUnit.ConsoleRunner/tools/nunit3-console.exe" })
)


Target "Default" (fun _ -> trace "HEEEELLOOOOOO world from FAKE!!!")

"Clean" ==> "Build" ==> "BuildTest" ==> "Test" ==> "Default"

RunTargetOrDefault "Default"

请注意，您必须指定 ToolPath 一直到 nunit3-console.exe 文件，而不仅仅是它所在的目录。

现在一切似乎都正常了，当我运行 build.fsx 时，我在控制台输出中得到了一个简单明了的 'test-summary'。 :)

linux 中的 F# 单元测试项目与单声道（FAKE，NUnit 3）

F# unit test projects in linux with mono (FAKE, NUnit 3)

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nunit

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