File Coverage

blib/lib/Data/TableReader/Decoder/Mock.pm

Criterion	Covered	Total	%
statement	56	59	94.9
branch	10	14	71.4
condition	2	8	25.0
subroutine	11	12	91.6
pod	1	1	100.0
total	80	94	85.1

package Data::TableReader::Decoder::Mock;
$Data::TableReader::Decoder::Mock::VERSION = '0.010';
use Moo 2;
use Carp 'croak';
use IO::Handle;

extends 'Data::TableReader::Decoder';

# ABSTRACT: Mock decoder for test cases


has data => ( is => 'rw' );

sub iterator {
	my $self= shift;
	my $data= $self->data;
	my $table= $data->[0];
	my $colmax= $table? scalar(@{$table->[0]})-1 : -1;
	my $rowmax= $table? $#$table : -1;
	my $row= -1;
	Data::TableReader::Decoder::Mock::_Iter->new(
		sub {
			my $slice= shift;
			return undef unless $row < $rowmax;
			++$row;
			my $datarow= $table->[$row];
			return [ @{$datarow}[@$slice] ] if $slice;
			return $datarow;
		},
		{
			data => $data,
			table_idx => 0,
			table_ref => \$table,
			row_ref => \$row,
			colmax_ref => \$colmax,
			rowmax_ref => \$rowmax,
			origin => [ $table, $row ],
		}
	);
}

# If you need to subclass this iterator, don't.  Just implement your own.
# i.e. I'm not declaring this implementation stable, yet.
use Data::TableReader::Iterator;
BEGIN { @Data::TableReader::Decoder::Mock::_Iter::ISA= ('Data::TableReader::Iterator'); }

sub Data::TableReader::Decoder::Mock::_Iter::position {
	my $f= shift->_fields;
	'row '.${ $f->{row_ref} };
}

sub Data::TableReader::Decoder::Mock::_Iter::progress {
	my $f= shift->_fields;
	return ${ $f->{row_ref} } / (${ $f->{rowmax_ref} } || 1);
}

sub Data::TableReader::Decoder::Mock::_Iter::tell {
	my $f= shift->_fields;
	return [ $f->{table_idx}, ${$f->{row_ref}} ];
}

sub Data::TableReader::Decoder::Mock::_Iter::seek {
	my ($self, $to)= @_;
	my $f= $self->_fields;
	$to ||= $f->{origin};
	my ($table_idx, $row)= @$to;
	my $table= $f->{data}[$table_idx];
	my $colmax= $table? scalar(@{$table->[0]})-1 : -1;
	my $rowmax= $table? $#$table : -1;
	$row= -1 unless defined $row;
	$f->{table_idx}= $table_idx;
	${$f->{table_ref}}= $table;
	${$f->{row_ref}}= $row;
	${$f->{colmax_ref}}= $colmax;
	${$f->{rowmax_ref}}= $rowmax;
	1;
}

sub Data::TableReader::Decoder::Mock::_Iter::next_dataset {
	my $self= shift;
	my $f= $self->_fields;
	return defined $f->{data}[ $f->{table_idx}+1 ]
		&& $self->seek([ $f->{table_idx}+1 ]);
}

1;

__END__