Test::More, BEGIN use_ok, plan, what?

[Adriano Ferreira]

If I run this script

   use Test::More;

   plan tests => 2;

   BEGIN { use_ok( 'My', 'foo' ); }

   ok(1);
   is(foo, 1);

I got the output, which says nothing about the use_ok. It is not
counted as a test, it does not ruin the plan, it does its job
(requiring and importing a &foo subroutine).

   $ perl use_ok_ok.t
   1..2
   ok 1
   ok 2

Is this expected?

###

   # a source file for My.pm goes as follows
   package My;

   require Exporter;
   our @ISA = qw(Exporter);
   our @EXPORT = qw(foo bar);

   sub foo { 1 }

   1;