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use v6;
sub fac(Int $n) {
[*] 1..$n
use Test;
plan 6;
is fac(0), 1, 'fac(0) works';
is fac(1), 1, 'fac(1) works';
is fac(2), 2, 'fac(2) works';
is fac(3), 6, 'fac(3) works';
is fac(4), 24, 'fac(4) works';
#?pugs todo
dies_ok { eval(q[ fac('oh noes i am a string')]) }, 'Can only call it with ints';
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