Examples are a good idea, especially when your class has a complex
API. But examples are only a part of a documentation. Don't create
examples instead of a documentation. You should store the
documentation and the examples in a sub directory 'docs' of the
package directory.
Test scripts are recommended when your class has to be compiled,
requires special extentions/programs or needs correctly installed
additional files (i.e. templates, graphics). Store them in sub
directory called 'tests'.