Initial Commit

database/perl/lib/Test/Deep/Shallow.pm

@@ -0,0 +1,51 @@
+use strict;
+use warnings;
+
+package Test::Deep::Shallow;
+
+use Test::Deep::Cmp;
+
+use Scalar::Util qw( refaddr );
+
+sub init
+{
+  my $self = shift;
+
+  my $val = shift;
+  $self->{val} = $val;
+}
+
+sub descend
+{
+  my $self = shift;
+
+  my $got = shift;
+  my $exp = $self->{val};
+
+  my $ok;
+
+  if (!defined $got and !defined $exp)
+  {
+    $ok = 1;
+  }
+  elsif (defined $got xor defined $exp)
+  {
+    $ok = 0;
+  }
+  elsif (ref $got and ref $exp)
+  {
+    $ok = refaddr($got) == refaddr($exp);
+  }
+  elsif (ref $got xor ref $exp)
+  {
+    $ok = 0;
+  }
+  else
+  {
+    $ok = $got eq $exp;
+  }
+
+  return $ok;
+}
+
+1;