EmptyFiles

A collection of minimal binary files.

See Milestones for release notes.

NuGet package

• https://nuget.org/packages/EmptyFiles/
• https://nuget.org/packages/EmptyFiles.Tool/

Files

All files: https://github.com/VerifyTests/EmptyFiles/tree/main/files

Archive

• .7z (32 bytes)
• .7zip (32 bytes)
• .bz2 (14 bytes)
• .bzip2 (14 bytes)
• .gz (29 bytes)
• .gzip (29 bytes)
• .tar (1.5 KB)
• .xz (32 bytes)
• .zip (22 bytes)

Document

• .docx (1.9 KB)
• .odt (2.2 KB)
• .pdf (280 bytes)
• .rtf (6 bytes)

Image

• .avif (298 bytes)
• .bmp (58 bytes)
• .dds (136 bytes)
• .dib (58 bytes)
• .emf (620 bytes)
• .exif (734 bytes)
• .gif (799 bytes)
• .heic (3.2 KB)
• .heif (209 bytes)
• .ico (70 bytes)
• .j2c (270 bytes)
• .jfif (734 bytes)
• .jp2 (354 bytes)
• .jpc (270 bytes)
• .jpe (734 bytes)
• .jpeg (734 bytes)
• .jpg (734 bytes)
• .jxr (300 bytes)
• .pbm (8 bytes)
• .pcx (131 bytes)
• .pgm (12 bytes)
• .png (119 bytes)
• .ppm (14 bytes)
• .rle (58 bytes)
• .tga (543 bytes)
• .tif (250 bytes)
• .tiff (250 bytes)
• .wdp (300 bytes)
• .webp (228 bytes)
• .wmp (300 bytes)

Sheet

• .ods (2.7 KB)
• .xlsx (4.5 KB)

Slide

• .odp (7.8 KB)
• .pptx (13.3 KB)

Consuming files as a web resource

Files can be consumed as a web resource using the following url:

https://github.com/VerifyTests/EmptyFiles/raw/main/index/empty.{extension}

So for example to consume a jpg use

https://github.com/VerifyTests/EmptyFiles/raw/main/index/empty.jpg

A 404 will result for non-existent files.

Tool Usage

Installation

Ensure dotnet CLI is installed.

Install EmptyFiles.Tool

dotnet tool install -g EmptyFiles.Tool

Extension only Usage

emptyfile bmp

Creates {CurrentDirectory}/empty.bmp

File Usage

emptyfile myfile.bmp

Creates {CurrentDirectory}/myfile.bmp

Path Usage

emptyfile path/myfile.bmp

Creates path/myfile.bmp

Library Usage

CreateFile

Creates a new empty file

AllFiles.CreateFile(pathOfFileToCreate);

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Throws an exception if the extension is not known. There is also a TryCreateFile that will return false if the extension is not known.

Use the optional useEmptyStringForTextFiles to create a empty text file if the extension is text. The file will be UTF8 no BOM as per https://www.unicode.org/versions/Unicode5.0.0/ch02.pdf "Use of a BOM is neither required nor recommended for UTF-8".

GetPathFor

Gets the path to an empty file for a given extension

var path = AllFiles.GetPathFor(".jpg");

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Throws an exception if the extension is not known. There is also a TryGetPathFor that will return false if the extension is not known.

IsEmptyFile

Returns true if the target file is an empty file.

var path = AllFiles.GetPathFor(".jpg");
True(AllFiles.IsEmptyFile(path));
var temp = Path.GetTempFileName();
False(AllFiles.IsEmptyFile(temp));

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AllPaths

Enumerates all empty files

foreach (var path in AllFiles.AllPaths)
{
    Trace.WriteLine(path);
}

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UseFile

Use or replace a file

AllFiles.UseFile(Category.Document, pathToFile);
IsTrue(AllFiles.DocumentPaths.Contains(pathToFile));

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Extensions helper

IsText

https://github.com/sindresorhus/text-extensions/blob/master/text-extensions.json

True(FileExtensions.IsTextFile("file.txt"));
False(FileExtensions.IsTextFile("file.bin"));
True(FileExtensions.IsTextExtension(".txt"));
False(FileExtensions.IsTextExtension(".bin"));
True(FileExtensions.IsTextExtension("txt"));
False(FileExtensions.IsTextExtension("bin"));

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AddTextExtension

FileExtensions.AddTextExtension(".ext1");
True(FileExtensions.IsTextExtension(".ext1"));
True(FileExtensions.IsTextFile("file.ext1"));

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RemoveTextExtension

FileExtensions.AddTextExtension(".ext1");
True(FileExtensions.IsTextExtension(".ext1"));
FileExtensions.RemoveTextExtension(".ext1");
False(FileExtensions.IsTextExtension(".ext1"));

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Icon

Hollow designed by Michael Senkow from The Noun Project.