simoncropp 

Launches diff tools based on file extensions. Designed to be consumed by snapshot testing libraries.

A collection of minimal binary files.

Shouldly - Assertion framework for .NET. The way asserting *Should* be

Extensible tool for weaving .net assemblies.

Enables verification of complex models and documents.

Generates simple names info (types, parameters, properties, fields, and methods).

Json serialization library. Hard fork of Json.net.

Add property notification to all classes that implement INotifyPropertyChanged.

Enables verification of complex models and documents.

A cross platform package to copy text to the clipboard.

Configure async code's ConfigureAwait at a global level.

Common helper classes developed with ApprovalTests

A picture's worth a 1000 tests. Unit testing asserts can be difficult to use. Approval tests simplify this by taking a snapshot of the results, and confirming that they have not changed.

Fody add-in for embedding references as resources.

Enables verification of complex models and documents.

Add support for sending NServiceBus logging through Serilog

Allows cleaner DateTime expressions and operations

Add EntityFramework Core IQueryable support to GraphQL

Extends xUnit to expose extra context and simplify logging.

Source only packages that exposes newer .net and C# features to older runtimes.