Ticket #12456: redirectPostId.php

<?php

/**
 * @group canonical
 * @group rewrite
 * @ticket 12456
 */
class Tests_Canonical_redirectPostId extends WP_Canonical_UnitTestCase {
        protected $post_id;

        public function setUp() {
                parent::setUp();

                $this->post_id = self::factory()->post->create(
                        array(
                                'post_title' => 'Foo Bar',
                                'post_name'  => 'foo-bar',
                        )
                );

                $this->set_permalink_structure( '/%post_id%/%postname%/' );

                flush_rewrite_rules();
        }

        public function tearDown() {
                $this->post_id = null;

                parent::tearDown();
        }

        public function test_old_slug_redirect() {
                $old_permalink = user_trailingslashit( get_site_url().'/'.$this->post_id );

                $permalink = user_trailingslashit( get_permalink( $this->post_id ) );

                $this->go_to( $old_permalink );
                
                $can_url = $this->get_canonical( $old_permalink );
                
                $this->assertSame( $permalink, $can_url );
        }

        /**
         * Get the canonical URL given a raw URL.
         *
         * @param string $test_url Should be absolute 
         *                         ie http://example.com/category/uncategorized/
         * @return $can_url Returns the original $test_url if no canonical can be generated, otherwise returns
         *                  the fully-qualified URL as generated by redirect_canonical().
         */
        public function get_canonical( $test_url ) {
                $can_url = redirect_canonical( $test_url, false );
                if ( ! $can_url ) {
                        return $test_url; // No redirect will take place for this request.
                }

                return $can_url;
        }
}