New -- should be part of the test suite but this is better than nothing.

diff --git a/lib/ZOOM/IRSpy/x.pl b/lib/ZOOM/IRSpy/x.pl
new file mode 100644 (file)
index 0000000..20b2d97
--- /dev/null
+++ b/lib/ZOOM/IRSpy/x.pl
@@ -0,0 +1,69 @@
+#!/usr/bin/perl -w
+
+# $Id: x.pl,v 1.1 2007-02-28 16:52:34 mike Exp $
+
+### This should be massaged into a test-suite script in ../../../t
+
+use strict;
+use warnings;
+use lib '../..';
+use ZOOM::IRSpy::Node;
+
+#my $phylogeny = <<__EOT__;
+#Dinosauria
+# Saurischia
+#  Theropoda
+#  Sauropoda
+# Ornithischia
+#  Thyreophora
+#   Stegosauria
+#   Ankylosauria
+#  Cerapoda
+#   Marginocephalia
+#    Ceratopsia
+#    Pachycephalosauria
+#   Ornithopoda
+#    Hadrosauria
+#__EOT__
+#
+#my @stack;
+#foreach my $line (reverse split /\n/, $phylogeny) {
+#    $line =~ s/( *)//;
+#    my $level = length($1);
+#    print "level $level: $line\n";
+#}
+
+    my $n1 = new ZOOM::IRSpy::Node("Hadrosauria");
+   my $n2 = new ZOOM::IRSpy::Node("Ornithopoda", $n1);
+    my $n3 = new ZOOM::IRSpy::Node("Pachycephalosauria");
+    my $n4 = new ZOOM::IRSpy::Node("Ceratopsia");
+   my $n5 = new ZOOM::IRSpy::Node("Marginocephalia", $n3, $n4);
+  my $n6 = new ZOOM::IRSpy::Node("Cerapoda", $n2, $n5);
+   my $n7 = new ZOOM::IRSpy::Node("Ankylosauria");
+   my $n8 = new ZOOM::IRSpy::Node("Stegosauria");
+  my $n9 = new ZOOM::IRSpy::Node("Thyreophora", $n7, $n8);
+ my $n10 = new ZOOM::IRSpy::Node("Ornithischia", $n6, $n9);
+  my $n11 = new ZOOM::IRSpy::Node("Sauropoda");
+  my $n12 = new ZOOM::IRSpy::Node("Theropoda");
+ my $n13 = new ZOOM::IRSpy::Node("Saurischia", $n11, $n12);
+my $root = new ZOOM::IRSpy::Node("Dinosauria", $n10, $n13);
+
+$root->resolve();
+assert(!defined $root->parent());
+
+my $count = 0;
+for (my $node = $root; defined $node; $node = $node->{next}) {
+    print "'", $node->address(), "' = ", $node->name(), "\n";
+    assert($node eq $root->select($node->address()));
+    assert($node eq $node->next()->previous())
+       if defined $node->next();
+    assert($node eq $node->previous()->next())
+       if defined $node->previous();
+    $count++;
+}
+assert($count == 14);
+
+sub assert {
+    my($ok) = @_;
+    die "assert failed" if !$ok;
+}