A model-based test automation framework for GUI applications
This framework supports a wide variety of model-based GUI testing techniques. The innovation lies in the architecture of GUITAR, which uses plug-ins to support flexibility and extensibility. Software developers and quality assurance engineers may use this architecture to create new toolchains, new workflows based on the toolchains, and plug in a variety of measurement tools to conduct GUI testing.
More detail is presented in this publication:
GUITAR: An Innovative Tool for Automated...
NUnitWeb is a DOT NET test framework for use in conjunction with NUnit. It's similiar to NUnitASP, but more complete. Javascript, ASPNET 2.0, file controls (multipart form data), and ordinary HTML are all supported.