gistfile1.txt

    if (my $files = $tester_arg->{add_files}) {
      while (my ($name, $content) = each %$files) {
        my $fn = $tempdir->child($name);
        $fn->parent->mkpath;
        $fn->spew_utf8($content);
        warn "making $fn"; # <-- does in fact say its making the file
      }
    }

    local $arg->{dist_root} = "$root";
    local $arg->{chrome} = Dist::Zilla::Chrome::Test->new;

    local @INC = map {; ref($_) ? $_ : File::Spec->rel2abs($_) } @INC;

    my $zilla = $self->$orig($arg);

    $zilla->_set_tempdir($tempdir);
    warn "Created Tempdir at $tempdir";
    system("find","$tempdir"); # <-- absolutely no files