"Code Contracts provide a language-agnostic way to express coding assumptions in .NET programs. The contracts take the form of preconditions, postconditions, and object invariants. Contracts act as checked documentation of your external and internal APIs. The contracts are used to improve testing via runtime checking, enable static contract verification, and documentation generation."
Important note for use: "Our tools can be installed in any Visual Studio edition (except Express). The license does allow commercial use. It is available on the Visual Studio Gallery."
Last modified 10 May 2020