Initial Commit

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

@@ -0,0 +1,43 @@
+use strict;
+use warnings;
+
+package Test::Deep::Isa;
+
+use Test::Deep::Cmp;
+use Scalar::Util;
+
+sub init
+{
+  my $self = shift;
+
+  my $val = shift;
+  $self->{val} = $val;
+}
+
+sub descend
+{
+  my $self = shift;
+  my $got = shift;
+
+  return Scalar::Util::blessed($got)
+    ? $got->isa($self->{val})
+    : ref($got) eq $self->{val};
+}
+
+sub diag_message
+{
+  my $self = shift;
+
+  my $where = shift;
+
+  return "Checking class of $where with isa()";
+}
+
+sub renderExp
+{
+  my $self = shift;
+
+  return "blessed into or ref of type '$self->{val}'";
+}
+
+1;