天河区门户网站教育局,东莞seoseo关键词排名优化,深圳建设工程交易宝安,开展我国电子网站建设刚看到这个Namespace的时候还以为是.Net Framework里自带的包#xff0c;结果查了一圈无任何结果。果断上Github搜索#xff0c;一击即中 https://github.com/tathamoddie/System.IO.Abstractions先翻译下开发者给出的简单说明#xff0c;今后再慢慢使用类似于System.Web.Ab… 刚看到这个Namespace的时候还以为是.Net Framework里自带的包结果查了一圈无任何结果。果断上Github搜索一击即中 https://github.com/tathamoddie/System.IO.Abstractions先翻译下开发者给出的简单说明今后再慢慢使用类似于System.Web.Abstractions的用法System.IO也被扩展了它能针对可测的IO进行访问Just like System.Web.Abstractions, but for System.IO. Yay for testable IO access!只能用NuGet方式下载NuGet only:1 Install-Package System.IO.Abstractions如果有需要可以下载测试帮助包and/or:1 Install-Package System.IO.Abstractions.TestingHelpers本库最核心的2个文件是IFileSystem和FileSystem。使用IFileSystem.File.ReadAllText等方法替换掉之前的File.ReadAllText等方法。除了一些我们扩展和进行测试的方法外其他API也基本完全相同。At the core of the library is IFileSystem and FileSystem. Instead of calling methods like File.ReadAllText directly, use IFileSystem.File.ReadAllText. We have exactly the same API, except that ours is injectable and testable.1 public class MyComponent 2 { 3 readonly IFileSystem fileSystem; 4 5 // summaryCreate MyComponent with the given fileSystem implementation/summary 6 public MyComponent(IFileSystem fileSystem) 7 { 8 this.fileSystem fileSystem; 9 }
10 /// summaryCreate MyComponent/summary 11 public MyComponent() : this(
12 fileSystem: new FileSystem() //use default implementation which calls System.IO 13 )
14 {
15 }
16 17 public void Validate()
18 {
19 foreach (var textFile in fileSystem.Directory.GetFiles(c:\, *.txt, SearchOption.TopDirectoryOnly))
20 {
21 var text fileSystem.File.ReadAllText(textFile);
22 if (text ! Testing is awesome.)
23 throw new NotSupportedException(We cant go on together. Its not me, its you.);
24 }
25 }
26 }这个库中还包含了一系列测试程序来帮助你熟悉它。虽然它不是一个成熟的文件系统但是它一定会给你带来帮助的。The library also ships with a series of test helpers to save you from having to mock out every call, for basic scenarios. They are not a complete copy of a real-life file system, but theyll get you most of the way there. 1 [Test] 2 public void MyComponent_Validate_ShouldThrowNotSupportedExceptionIfTestingIsNotAwesome() 3 { 4 // Arrange 5 var fileSystem new MockFileSystem(new Dictionarystring, MockFileData 6 { 7 { c:\myfile.txt, new MockFileData(Testing is meh.) }, 8 { c:\demo\jQuery.js, new MockFileData(some js) }, 9 { c:\demo\image.gif, new MockFileData(new byte[] { 0x12, 0x34, 0x56, 0xd2 }) }
10 });
11 var component new MyComponent(fileSystem);
12 13 try 14 {
15 // Act 16 component.Validate();
17 }
18 catch (NotSupportedException ex)
19 {
20 // Assert 21 Assert.AreEqual(We cant go on together. Its not me, its you., ex.Message);
22 return;
23 }
24 25 Assert.Fail(The expected exception was not thrown.);
26 }我们甚至支持把.NET框架里不可测试的类型加入到测试程序里We even support casting from the .NET Frameworks untestable types to our testable wrappers: 1 FileInfo SomeBadApiMethodThatReturnsFileInfo() 2 { 3 return new FileInfo(a); 4 } 5 6 void MyFancyMethod() 7 { 8 var testableFileInfo (FileInfoBase)SomeBadApiMethodThatReturnsFileInfo(); 9 //... 10 }
