#!/usr/bin/perl
use strict;
use warnings;
use Test::More;
use Test::Exception;
{
# test no conflicts here
package Role::A;
use Moose::Role;
sub bar { 'Role::A::bar' }
package Role::B;
use Moose::Role;
sub xxy { 'Role::B::xxy' }
package Role::C;
use Moose::Role;
::lives_ok {
with qw(Role::A Role::B); # no conflict here
} "define role C";
sub foo { 'Role::C::foo' }
sub zot { 'Role::C::zot' }
package Class::A;
use Moose;
::lives_ok {
with qw(Role::C);
} "define class A";
sub zot { 'Class::A::zot' }
}
can_ok( Class::A->new, qw(foo bar xxy zot) );
is( Class::A->new->foo, "Role::C::foo", "... got the right foo method" );
is( Class::A->new->zot, "Class::A::zot", "... got the right zot method" );
is( Class::A->new->bar, "Role::A::bar", "... got the right bar method" );
is( Class::A->new->xxy, "Role::B::xxy", "... got the right xxy method" );
{
# check that when a role is added to another role
# and they conflict and the method they conflict
# with is then required.
package Role::A::Conflict;
use Moose::Role;
with 'Role::A';
sub bar { 'Role::A::Conflict::bar' }
package Class::A::Conflict;
use Moose;
::throws_ok {
with 'Role::A::Conflict';
} qr/Due to a method name conflict in roles 'Role::A' and 'Role::A::Conflict', the method 'bar' must be implemented or excluded by 'Class::A::Conflict'/, '... did not fufill the requirement of &bar method';
package Class::A::Resolved;
use Moose;
::lives_ok {
with 'Role::A::Conflict';
} '... did fufill the requirement of &bar method';
sub bar { 'Class::A::Resolved::bar' }
}
ok(Role::A::Conflict->meta->requires_method('bar'), '... Role::A::Conflict created the bar requirement');
can_ok( Class::A::Resolved->new, qw(bar) );
is( Class::A::Resolved->new->bar, 'Class::A::Resolved::bar', "... got the right bar method" );
{
# check that when two roles are composed, they conflict
# but the composing role can resolve that conflict
package Role::D;
use Moose::Role;
sub foo { 'Role::D::foo' }
sub bar { 'Role::D::bar' }
package Role::E;
use Moose::Role;
sub foo { 'Role::E::foo' }
sub xxy { 'Role::E::xxy' }
package Role::F;
use Moose::Role;
::lives_ok {
with qw(Role::D Role::E); # conflict between 'foo's here
} "define role Role::F";
sub foo { 'Role::F::foo' }
sub zot { 'Role::F::zot' }
package Class::B;
use Moose;
::lives_ok {
with qw(Role::F);
} "define class Class::B";
sub zot { 'Class::B::zot' }
}
can_ok( Class::B->new, qw(foo bar xxy zot) );
is( Class::B->new->foo, "Role::F::foo", "... got the &foo method okay" );
is( Class::B->new->zot, "Class::B::zot", "... got the &zot method okay" );
is( Class::B->new->bar, "Role::D::bar", "... got the &bar method okay" );
is( Class::B->new->xxy, "Role::E::xxy", "... got the &xxy method okay" );
ok(!Role::F->meta->requires_method('foo'), '... Role::F fufilled the &foo requirement');
{
# check that a conflict can be resolved
# by a role, but also new ones can be
# created just as easily ...
package Role::D::And::E::Conflict;
use Moose::Role;
::lives_ok {
with qw(Role::D Role::E); # conflict between 'foo's here
} "... define role Role::D::And::E::Conflict";
sub foo { 'Role::D::And::E::Conflict::foo' } # this overrides ...
# but these conflict
sub xxy { 'Role::D::And::E::Conflict::xxy' }
sub bar { 'Role::D::And::E::Conflict::bar' }
}
ok(!Role::D::And::E::Conflict->meta->requires_method('foo'), '... Role::D::And::E::Conflict fufilled the &foo requirement');
ok(Role::D::And::E::Conflict->meta->requires_method('xxy'), '... Role::D::And::E::Conflict adds the &xxy requirement');
ok(Role::D::And::E::Conflict->meta->requires_method('bar'), '... Role::D::And::E::Conflict adds the &bar requirement');
{
# conflict propagation
package Role::H;
use Moose::Role;
sub foo { 'Role::H::foo' }
sub bar { 'Role::H::bar' }
package Role::J;
use Moose::Role;
sub foo { 'Role::J::foo' }
sub xxy { 'Role::J::xxy' }
package Role::I;
use Moose::Role;
::lives_ok {
with qw(Role::J Role::H); # conflict between 'foo's here
} "define role Role::I";
sub zot { 'Role::I::zot' }
sub zzy { 'Role::I::zzy' }
package Class::C;
use Moose;
::throws_ok {
with qw(Role::I);
} qr/Due to a method name conflict in roles 'Role::H' and 'Role::J', the method 'foo' must be implemented or excluded by 'Class::C'/, "defining class Class::C fails";
sub zot { 'Class::C::zot' }
package Class::E;
use Moose;
::lives_ok {
with qw(Role::I);
} "resolved with method";
sub foo { 'Class::E::foo' }
sub zot { 'Class::E::zot' }
}
can_ok( Class::E->new, qw(foo bar xxy zot) );
is( Class::E->new->foo, "Class::E::foo", "... got the right &foo method" );
is( Class::E->new->zot, "Class::E::zot", "... got the right &zot method" );
is( Class::E->new->bar, "Role::H::bar", "... got the right &bar method" );
is( Class::E->new->xxy, "Role::J::xxy", "... got the right &xxy method" );
ok(Role::I->meta->requires_method('foo'), '... Role::I still have the &foo requirement');
{
lives_ok {
package Class::D;
use Moose;
has foo => ( default => __PACKAGE__ . "::foo", is => "rw" );
sub zot { 'Class::D::zot' }
with qw(Role::I);
} "resolved with attr";
can_ok( Class::D->new, qw(foo bar xxy zot) );
is( eval { Class::D->new->bar }, "Role::H::bar", "bar" );
is( eval { Class::D->new->zzy }, "Role::I::zzy", "zzy" );
is( eval { Class::D->new->foo }, "Class::D::foo", "foo" );
is( eval { Class::D->new->zot }, "Class::D::zot", "zot" );
}
done_testing;