Moose-2.1405HEADMoose-2.1405master

1 files changed, 136 insertions, 0 deletions

diff --git a/t/basics/rebless.t b/t/basics/rebless.t
new file mode 100644
index 0000000..db08d6b
--- /dev/null
+++ b/t/basics/rebless.t
@@ -0,0 +1,136 @@
+use strict;
+use warnings;
+
+use Test::More;
+use Test::Fatal;
+use Test::Moose qw(with_immutable);
+use Scalar::Util 'blessed';
+
+use Moose::Util::TypeConstraints;
+
+subtype 'Positive'
+     => as 'Num'
+     => where { $_ > 0 };
+
+{
+    package Parent;
+    use Moose;
+
+    has name => (
+        is       => 'rw',
+        isa      => 'Str',
+    );
+
+    has lazy_classname => (
+        is      => 'ro',
+        lazy    => 1,
+        default => sub { "Parent" },
+    );
+
+    has type_constrained => (
+        is      => 'rw',
+        isa     => 'Num',
+        default => 5.5,
+    );
+
+    package Child;
+    use Moose;
+    extends 'Parent';
+
+    has '+name' => (
+        default => 'Junior',
+    );
+
+    has '+lazy_classname' => (
+        default => sub {"Child"},
+    );
+
+    has '+type_constrained' => (
+        isa     => 'Int',
+        default => 100,
+    );
+
+    our %trigger_calls;
+    our %initializer_calls;
+
+    has new_attr => (
+        is      => 'rw',
+        isa     => 'Str',
+        trigger => sub {
+            my ( $self, $val, $attr ) = @_;
+            $trigger_calls{new_attr}++;
+        },
+        initializer => sub {
+            my ( $self, $value, $set, $attr ) = @_;
+            $initializer_calls{new_attr}++;
+            $set->($value);
+        },
+    );
+}
+
+my @classes = qw(Parent Child);
+
+with_immutable {
+    my $foo = Parent->new;
+    my $bar = Parent->new;
+
+    is( blessed($foo),        'Parent', 'Parent->new gives a Parent object' );
+    is( $foo->name,           undef,    'No name yet' );
+    is( $foo->lazy_classname, 'Parent', "lazy attribute initialized" );
+    is(
+        exception { $foo->type_constrained(10.5) }, undef,
+        "Num type constraint for now.."
+    );
+
+    # try to rebless, except it will fail due to Child's stricter type constraint
+    like(
+        exception { Child->meta->rebless_instance($foo) },
+        qr/^Attribute \(type_constrained\) does not pass the type constraint because\: Validation failed for 'Int' with value 10\.5/,
+        '... this failed because of type check'
+    );
+    like(
+        exception { Child->meta->rebless_instance($bar) },
+        qr/^Attribute \(type_constrained\) does not pass the type constraint because\: Validation failed for 'Int' with value 5\.5/,
+        '... this failed because of type check'
+    );
+
+    $foo->type_constrained(10);
+    $bar->type_constrained(5);
+
+    Child->meta->rebless_instance($foo);
+    Child->meta->rebless_instance( $bar, new_attr => 'blah' );
+
+    is( blessed($foo), 'Child',  'successfully reblessed into Child' );
+    is( $foo->name,    'Junior', "Child->name's default came through" );
+
+    is(
+        $foo->lazy_classname, 'Parent',
+        "lazy attribute was already initialized"
+    );
+    is(
+        $bar->lazy_classname, 'Child',
+        "lazy attribute just now initialized"
+    );
+
+    like(
+        exception { $foo->type_constrained(10.5) },
+        qr/^Attribute \(type_constrained\) does not pass the type constraint because\: Validation failed for 'Int' with value 10\.5/,
+        '... this failed because of type check'
+    );
+
+    is_deeply(
+        \%Child::trigger_calls, { new_attr => 1 },
+        'Trigger fired on rebless_instance'
+    );
+    is_deeply(
+        \%Child::initializer_calls, { new_attr => 1 },
+        'Initializer fired on rebless_instance'
+    );
+
+    undef %Child::trigger_calls;
+    undef %Child::initializer_calls;
+
+}
+@classes;
+
+done_testing;