You can get an overview over number of pugs tests at the smoke server.

The numbers vary, because some commits break parsing of some test files, but you can extract a rough number of about 19k tests that are in the repository atm, and can be parsed by pugs. (Look at "repository snapshot / linux", which should contain the most up to date smoke reports).

Note that these tests are being transformed into the "official" Perl 6 test suite. And TimToady wants twice as many -)