perl t/02_simple.t

        $ perl t/02_simple.t 
        1..2
        ok 1 - '1' evaluates to true in Perl
        not ok 2 - '0' evaluates to false in Perl
        #   Failed test ''0' evaluates to false in Perl'
        #   at t/02_simple.t line 11.
        # Looks like you failed 1 test of 2.

• What happened?