[Piglit] [RFC] One enum coverage test or many?

[Ian Romanick]

I'm working on some generated "coverage" tests.  For each extension (or 
core GL version), these tests try every possible pname enum to the 
various get commands.  The tests just verify that no error is generated 
if the extension is supported or that INVALID_ENUM is generated if the 
extension is not supported.

Right now, a separate test is generated for each extension.  As a 
result, there are a bunch of ext_foo-get-enum-coverage tests.  I'm a bit 
torn between this implementation and one giant test that just pokes at 
everything.

Opinions?