is( $stemma->graph, '1-2,1-A,2-B,2-C', "Got the correct graph" );
# Test for character matrix creation
-my $mstr = character_input( $c->make_alignment_table() );
+my $mstr = character_input( $c->alignment_table() );
## check number of rows
my @mlines = split( "\n", $mstr );
my $msig = shift @mlines;