c# - 使用 SpecFlow 测试引用我项目中的文件夹

Question

我正在尝试编写一个 SpecFlow 测试，测试当我的应用程序读取文件夹和文件的特定结构时会发生什么。我想在我的项目中包含这些文件夹和文件，这样测试就不会只在我自己的计算机上运行。

例如，我的 Specs 项目中有两个文件夹。一个称为“SimpleTestModel”，另一个称为“ComplexTestModel”。如何在我的 SpecFlow 测试中引用这些文件夹？

Answer 1

你想要一个 Test Fixture .

来自 Wikipedia :

In software testing, a test fixture is a fixed state of the software under test used as a baseline for running tests; also known as the test context. It may also refer to the actions performed in order to bring the system into such a state.

Examples of fixtures:

• Loading a database with a specific, known set of data
• Erasing a hard disk and installing a known clean operating system installation
• Copying a specific known set of files
• Preparation of input data and set-up/creation of fake or mock objects

Software used to systematically run reproducible tests on a piece of software under test is known as a test harness; part of its job is to set up suitable test fixtures.

针对您的具体问题:

1. 创建 Fixtures SpecFlow 测试项目中的目录。在其中根据您的测试创建任意数量的子目录，以设置您需要的目录和文件结构。

2. 添加 <appSettings>在 App.config 条目中定义所有测试装置的根文件夹

   <configuration>
     ...
     <appSettings>
       <!-- Path relative to the build output directory -->
       <add name="FixturesRootDirectory" value="..\..\Fixtures" />
     </appSettings>
     ...
   </configuration>
   

3. 在 [BeforeScenario] 中hook，设置当前场景上下文中fixtures目录的绝对路径(引用:How do I get the path of the assembly the code is in?)

   using System.Configuration;
   using System.IO;
   using TechTalk.SpecFlow;
   
   namespace Foo
   {
       [Binding]
       public class CommonHooks
       {
           [BeforeScenario]
           public void BeforeScenario()
           {
               InitFixturesPath();
           }
   
           private void InitFixturesPath()
           {
               if (ScenarioContext.Current.ContainsKey("FixturesPath"))
                   return;
   
               string codeBase = Path.GetDirectoryName(Assembly.GetExecutingAssembly().CodeBase)
                               + Path.DirectorySeparatorChar
                               + ConfigurationManager.AppSettings["FixturesRootDirectory"];
               UriBuilder uri = new UriBuilder(codeBase);
               string path = Uri.UnescapeDataString(uri.Path);
   
               ScenarioContext.Current.Set<string>("FixturesPath", Path.GetDirectoryName(path));
           }
       }
   }
   

4. 现在您可以使用 ScenarioContext.Current.Get<string>("FixturesPath")获取所有灯具的根目录。您甚至可以编写自己的 Fixtures 辅助类:

   public static class FixturesHelper
   {
       public static string Path { get; set; }
   
       // other methods and properties making it easier to use fixtures
   }