有没有一种方法，以有一次，每类，而不是每一次运行空间一SetUpFixture？ [英] Is there a way to have a SetUpFixture that runs once per class instead of once per namespace?

问题描述

场景

：首先，我是新来的测试 - 所以请多多包涵。我里面的测试项目的，有一个控制器文件夹。该控制器文件夹可能包含一个ControllerATest.cs，ControllerBTest.cs和ControllerCTest.cs。因为我的空间我的文件夹结构保持一致，他们都共享命名空间MyProject.Tests.Controllers

Scenario
First of all, I'm new to testing - so please bear with me. Inside of my test project, there is a Controllers folder. The Controllers folder may contain a ControllerATest.cs, ControllerBTest.cs, and ControllerCTest.cs. Because my namespace aligns with my folder structure, they all share the namespace MyProject.Tests.Controllers.

这是我读过的的 NUnit的SetUpFixture文档，一个[SetUpFixture]这个命名空间内运行曾经的整个空间的。也就是说，如果我跑了我所有的控制器测试一次 - 在SetUpFixture将只执行一次。

From what I've read in the NUnit SetUpFixture Documentation, a [SetUpFixture] inside this namespace will run once for the entire namespace. That is, if I run all of my controller tests at once - the SetUpFixture will be executed only once.

问题

以我说的，每个控制器测试共享命名空间。 SetUpFixtures适用于整个名字空间。如果我想每个控制器有自己的的的SetUpFixture？这是一个问题，当SetUpFixtures适用于整个命名空间。我要的是什么，只执行一次，而不是每个测试。一个我我SetUpFixture的设置里面做的事情是实例化一个控制器。当然，我可以实例在SetUpFixture所有3个控制器，但是这似乎难看的时候，也许我只是测试ControllerC。这确实似乎不干净。因此，我想任何应用SetUpFixture的只有的它出现在类，如ControllerCTests。

Problem
As I said, each controller test shares a namespace. SetUpFixtures apply to the entire namespace. What if I want each controller to have their own SetUpFixture? This is a problem when SetUpFixtures apply to entire namespaces. What I want is something that executes once, and not per-test. One of the things I do inside my SetUpFixture's SetUp is instantiate a controller. Sure, I could instantiate all 3 controllers in the SetUpFixture, but this seems ugly when maybe I am only testing ControllerC. That really doesn't seem clean. Therefore, I would like a SetUpFixture that applies only to the class it appears in, such as ControllerCTests.

这是我读过，这种特定的功能似乎是不可能使用Nunit。而如果它是不可能的NUnit的，这让我觉得这不是一个常见的场景。如果它不是一个常见的场景，我做错了什么。我的问题是，是什么？也许我的测试结构是关闭的，它需要改变。或者，也许它的是的可能的NUnit的？

From what I've read, this specific functionality seems to be impossible with NUnit. And if it's not possible with NUnit, that makes me think it's not a common scenario. And if it's not a common scenario, I am doing something wrong. My question is, what? Maybe my testing structure is off and it needs to change. Or maybe it is possible with NUnit?

代码

的例子我所需的结构：

Code
An example of my desired structure:

namespace MyProject.Tests.Controllers
{
public class ControllerATests
{
    private static IMyProjectRepository _fakeRepository;
    private static ControllerA _controllerA;

    [SetUpFixture]
    public class before_tests_run
    {
        [SetUp]
        public void ControllerASetup()
        {
            _fakeRepository = FakeRepository.Create();

            _controllerA = new ControllerA(_fakeRepository);
        }
    }

    [TestFixture]
    public class when_ControllerA_index_get_action_executes
    {
        [Test]
        public void it_does_something()
        {
            //
        }

        [Test]
        public void it_does_something_else()
        {
            //
        }
    }
}

public class ControllerBTests
{
    private static IMyProjectRepository _fakeRepository;
    private static ControllerB _controllerB;

    [SetUpFixture]
    public class before_tests_run
    {
        [SetUp]
        public void ControllerBSetup()
        {
            _fakeRepository = FakeRepository.Create();

            _controllerB = new ControllerB(_fakeRepository);
        }
    }

    [TestFixture]
    public class when_ControllerB_index_get_action_executes
    {
        [Test]
        public void it_does_something()
        {
            //
        }

        [Test]
        public void it_does_something_else()
        {
            //
        }
    }
}
}    

的资料我已经试过

• 移动每个.cs文件到自己的文件夹，所以他们有不同的命名空间。从技术上解决了这一问题，它只是似乎有点丑有一堆的子文件夹中，只有1他们每个人的项目。丑陋，不再符合我的父项目的结构我去了。但是 - 也许这是要走的路


• 未实例化我的控制器在 SetUpFixture 的安装程序，而不是做它在的TestFixture 设置，使一个新的实例得到每次测试（例如：5的测试= 5单独的实例）每班或命名空间，而不是一次。虽然它好像如果我只能与创建1个实例，我应该离开。

• Moving each .cs file into its own folder, so they have different namespaces. Technically this solves the problem, it just seems a little ugly to have a bunch of subfolders with only 1 item in each of them. Ugly, and will no longer match my parent project's structure which I was going for. But - maybe this is the way to go.
• Not instantiating my controller in the SetUpFixture SetUp, and instead doing it in the TestFixture SetUp so that a new one gets instantiated for every test (ex: 5 tests = 5 separate instances) instead of once per class or namespace. Though it seems like if I can get away with only creating 1 instance, I should.

建议？

推荐答案

使用的 TestFixtureSetupAttribute 上的方法在你的控制器类：

Use a TestFixtureSetupAttribute on a method in your Controller class:

[TestFixture]
public class when_ControllerA_index_get_action_executes
{
    [TestFixtureSetup]
    public void FixtureSetup()
    {
        // this code runs once no matter how many tests are in this class
    }

    [Test]
    public void it_does_something()
    {
        // ...
    }
}

从文档：

此属性用于可是TestFixture内，以提供一组功能被执行一次之前执行任何在夹具的测试

This attribute is used inside a TestFixture to provide a single set of functions that are performed once prior to executing any of the tests in the fixture.

下面的TestFixture是类的代名词。

Here, "TestFixture" is synonymous with class.

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