Guardian. Mostly of null values.
An unobtrusive, lightweight, guard clause source code package: less than 300 lines of code.
Should be used like this:
Guard.Against.Null(() => parameter);
May be extended like this:
Guard.Against.Empty(() => collection);
Possibly the best...
A lightweight and extensible guard clause library.
The library is easily extensible through the use of extension methods. Even the main Ensure.Arg(...) call can be overridden to whatever you prefer e.g. Verify.That(...)
See the project site for...