Convenience functionality on top of System.IO.Abstractions

dotnet add package TestableIO.System.IO.Abstractions.Extensions

Examples

CurrentDirectory extension

varfs=newFileSystem();//with extensionvarcurrent=fs.CurrentDirectory();//without extensionvarcurrent=fs.DirectoryInfo.FromDirectoryName(fs.Directory.GetCurrentDirectory());

SubDirectory extension

varcurrent=newFileSystem().CurrentDirectory();//create a "temp" subdirectory with extensioncurrent.SubDirectory("temp").Create();//create a "temp" subdirectory without extensioncurrent.FileSystem.DirectoryInfo.FromDirectoryName(current.FileSystem.Path.Combine(current.FullName,"temp")).Create();

File extension

varcurrent=newFileSystem().CurrentDirectory();//create a "test.txt" file with extensionusing(varstream=current.File("test.txt").Create())stream.Dispose();//create a "test.txt" file without extensionusing(varstream=current.FileSystem.FileInfo.FromFileName(current.FileSystem.Path.Combine(current.FullName,"test.txt")).Create())stream.Dispose();

Automatic cleanup with Disposable extensions

Use CreateDisposableDirectory or CreateDisposableFile to create a IDirectoryInfo or IFileInfo that's automatically deleted when the returned IDisposable is disposed.

varfs=newFileSystem();//with extensionusing(fs.CreateDisposableDirectory(outIDirectoryInfodir)){Console.WriteLine($"This directory will be deleted when control leaves the using block: '{dir.FullName}'");}//without extensionvartemp=fs.Path.GetTempPath();varfileName=fs.Path.GetRandomFileName();varpath=fs.Path.Combine(temp,fileName);try{IDirectoryInfodir=fs.Directory.CreateDirectory(path);Console.WriteLine($"This directory will be deleted in the finally block: '{dir.FullName}'");}finally{fs.Directory.Delete(path,recursive:true);}

IDirectoryInfo.CopyTo extension

varfs=newFileSystem();varcurrent=fs.CurrentDirectory();//sourcevarsource=current.SubDirectory("source");source.Create();//make sure the source directory exists//destinationvardest=current.SubDirectory("destination");//copysource.CopyTo(dest,recursive:true);