Re: Add regression tests for COLLATE

> Fabien pointed out that currently does not check for non-trivial locales.

Indeed, but although it was not very from my point (my wish), and as 
pointed out by Tom, it is not quite possible to test non trivial locales 
because you cannot assume that a given locale is available on any test 
machine.

Maybe some tests could be applied under some condition, say a given locale 
is indeed available, but ISTM that it would require to change the test 
infrastructure in a portable way to add such feature.

-- 
Fabien.