--- /dev/null
+#!/usr/bin/env perl
+use strict;
+use warnings;
+use Test::More tests => 12;
+use Test::Exception;
+
+my %triggered;
+do {
+ package Foo;
+ use Mouse;
+
+ has foo => (
+ isa => "Str",
+ is => "rw",
+ default => "foo",
+ );
+
+ has bar => (
+ isa => "ArrayRef",
+ is => "rw",
+ );
+
+ has baz => (
+ is => 'rw',
+ init_arg => undef,
+ );
+
+ has quux => (
+ is => 'rw',
+ init_arg => 'quuux',
+ trigger => sub{
+ my($self, $value) = @_;
+ $triggered{$self} = $value;
+ },
+ );
+
+ sub clone {
+ my ($self, @args) = @_;
+ $self->meta->clone_object($self, @args);
+ }
+};
+
+my $foo = Foo->new(bar => [ 1, 2, 3 ], quuux => "indeed");
+
+is($foo->foo, "foo", "attr 1",);
+is($foo->quux, "indeed", "init_arg respected");
+
+is $triggered{$foo}, "indeed";
+
+is_deeply($foo->bar, [ 1 .. 3 ], "attr 2");
+$foo->baz("foo");
+
+my $clone = $foo->clone(foo => "dancing", baz => "bar", quux => "nope", quuux => "yes");
+
+is $triggered{$foo}, "indeed";
+is $triggered{$clone}, "yes", 'clone_object() invokes triggers';
+
+is($clone->foo, "dancing", "overridden attr");
+is_deeply($clone->bar, [ 1 .. 3 ], "clone attr");
+is($clone->baz, "foo", "init_arg=undef means the attr is ignored");
+is($clone->quux, "yes", "clone uses init_arg and not attribute name");
+
+throws_ok {
+ Foo->meta->clone_object("constant");
+} qr/You must pass an instance of the metaclass \(Foo\), not \(constant\)/;
+
+throws_ok {
+ Foo->meta->clone_object(Foo->meta)
+} qr/You must pass an instance of the metaclass \(Foo\), not \(Mouse::Meta::Class=HASH\(\w+\)\)/;
+
+