Ryan Davis wrote in post #1031481:
> On Nov 11, 2011, at 08:35 , François Boone wrote:
>
> I usually look at the tests. A quick glance at tests/parser_spec.rb
> seems to have some usable examples.

Thank you Ryan for your hint.
However, it doesn't work

What I did:
I installed gedcom gem with: gem install gedcom
All seems ok

I use Ruby:
$ruby --version
ruby 1.9.1p376 (2009-12-07 revision 26041) [i386-darwin10.2.0]

I try date_spec.rb: (from tests/date_spec.rb)
$ ruby date_spec.rb

and I get
date_spec.rb:2:in `<main>': uninitialized constant GEDCOM (NameError)

Do I miss something? What don't I understand?
I am sorry if these questions are too basic.

Thank you for replies.
François