--- /dev/null
+#!/usr/bin/perl
+
+use strict;
+use warnings;
+use Test::More;
+
+unshift(@INC, './t/lib');
+
+plan tests => 9;
+
+my $warnings;
+eval {
+ local $SIG{__WARN__} = sub { $warnings .= shift };
+ package DBICNSTest;
+ use base qw/DBIx::Class::Schema/;
+ __PACKAGE__->load_namespaces;
+};
+ok(!$@) or diag $@;
+like($warnings, qr/load_namespaces found ResultSet class C with no corresponding source-definition class/);
+like($warnings, qr/load_namespaces found Result class C with no corresponding source-definition class/);
+
+my $source_a = DBICNSTest->source('A');
+isa_ok($source_a, 'DBIx::Class::ResultSource::Table');
+my $rset_a = DBICNSTest->resultset('A');
+isa_ok($rset_a, 'DBICNSTest::ResultSet::A');
+my $resclass_a = DBICNSTest->resultset('A')->result_class;
+is($resclass_a, 'DBICNSTest::Result::A');
+
+my $source_b = DBICNSTest->source('B');
+isa_ok($source_b, 'DBIx::Class::ResultSource::Table');
+my $rset_b = DBICNSTest->resultset('B');
+isa_ok($rset_b, 'DBIx::Class::ResultSet');
+my $resclass_b = DBICNSTest->resultset('B')->result_class;
+is($resclass_b, 'DBICNSTest::Source::B');