--- /dev/null
+#!perl
+use strict;
+use warnings FATAL => 'all';
+use Test::More
+ eval { require Moose; require MooseX::Types }
+ ? (tests => 4)
+ : (skip_all => "Moose, MooseX::Types required for testing types")
+;
+use Test::Fatal;
+
+{
+ package MyTypes;
+ use MooseX::Types::Moose qw/Str/;
+ use Moose::Util::TypeConstraints;
+ use MooseX::Types -declare => [qw/CustomType/];
+
+ BEGIN {
+ subtype CustomType,
+ as Str,
+ where { length($_) == 2 };
+ }
+}
+
+{
+ package TestClass;
+ use Function::Parameters qw(:strict);
+ BEGIN { MyTypes->import('CustomType') };
+ use MooseX::Types::Moose qw/ArrayRef/;
+ #use namespace::clean;
+
+ method foo ((CustomType) $bar) { }
+
+ method bar ((ArrayRef[CustomType]) $baz) { }
+}
+
+my $o = bless {} => 'TestClass';
+
+is(exception { $o->foo('42') }, undef);
+ok(exception { $o->foo('bar') });
+
+is(exception { $o->bar(['42', '23']) }, undef);
+ok(exception { $o->bar(['foo', 'bar']) });