https://www.developerfusion.com/t/tdd/code/ TDD Sample code from Developer Fusion 2001-07-14T14:48:00.00Z http://www.developerfusion.com/code/110/testing-visual-basic-class-interfaces/ Testing Visual Basic class interfaces 2001-07-14T14:48:00.00Z A more efficient way to test whether an object supports a particular interface ElementK Journals