Wordpress/tests/phpunit/tests/rewrite.php

<?php

/**
 * A set of unit tests for functions in wp-includes/rewrite.php
 *
 * @group rewrite
 */
class Tests_Rewrite extends WP_UnitTestCase {

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

		// Need rewrite rules in place to use url_to_postid
		global $wp_rewrite;
		update_option( 'permalink_structure', '/%year%/%monthnum%/%day%/%postname%/' );
		create_initial_taxonomies();
		$GLOBALS['wp_rewrite']->init();
		flush_rewrite_rules();
	}

	function tearDown() {
		parent::tearDown();
		$GLOBALS['wp_rewrite']->init();
	}

	function test_url_to_postid() {

		$id = $this->factory->post->create();
		$this->assertEquals( $id, url_to_postid( get_permalink( $id ) ) );

		$id = $this->factory->post->create( array( 'post_type' => 'page' ) );
		$this->assertEquals( $id, url_to_postid( get_permalink( $id ) ) );
	}

	function test_url_to_postid_custom_post_type() {
		delete_option( 'rewrite_rules' );
		
		$post_type = rand_str( 12 );
		register_post_type( $post_type, array( 'public' => true ) );
		
		$id = $this->factory->post->create( array( 'post_type' => $post_type ) );
		$this->assertEquals( $id, url_to_postid( get_permalink( $id ) ) );		
		
		_unregister_post_type( $post_type );		
	}
	
	function test_url_to_postid_hierarchical() {

		$parent_id = $this->factory->post->create( array( 'post_title' => 'Parent', 'post_type' => 'page' ) );
		$child_id = $this->factory->post->create( array( 'post_title' => 'Child', 'post_type' => 'page', 'post_parent' => $parent_id ) );

		$this->assertEquals( $parent_id, url_to_postid( get_permalink( $parent_id ) ) );
		$this->assertEquals( $child_id, url_to_postid( get_permalink( $child_id ) ) );
	}

	function test_url_to_postid_home_has_path() {

		update_option( 'home', home_url( '/example/' ) );

		$id = $this->factory->post->create( array( 'post_title' => 'Hi', 'post_type' => 'page', 'post_name' => 'examp' ) );
		$this->assertEquals( $id, url_to_postid( get_permalink( $id ) ) );
		$this->assertEquals( $id, url_to_postid( site_url('/example/examp' ) ) );
		$this->assertEquals( $id, url_to_postid( '/example/examp/' ) );
		$this->assertEquals( $id, url_to_postid( '/example/examp' ) );

		$this->assertEquals( 0, url_to_postid( site_url( '/example/ex' ) ) );
		$this->assertEquals( 0, url_to_postid( '/example/ex' ) );
		$this->assertEquals( 0, url_to_postid( '/example/ex/' ) );
		$this->assertEquals( 0, url_to_postid( '/example-page/example/' ) );
		$this->assertEquals( 0, url_to_postid( '/example-page/ex/' ) );
	}

	function test_url_to_postid_dupe_path() {
		update_option( 'home', home_url('/example/') );

		$id = $this->factory->post->create( array( 'post_title' => 'Hi', 'post_type' => 'page', 'post_name' => 'example' ) );

		$this->assertEquals( $id, url_to_postid( get_permalink( $id ) ) );
		$this->assertEquals( $id, url_to_postid( site_url( '/example/example/' ) ) );
		$this->assertEquals( $id, url_to_postid( '/example/example/' ) );
		$this->assertEquals( $id, url_to_postid( '/example/example' ) );
	}

	/**
	 * Reveals bug introduced in WP 3.0
	 */
	function test_url_to_postid_home_url_collision() {
		update_option( 'home', home_url( '/example' ) );

		$this->factory->post->create( array( 'post_title' => 'Collision', 'post_type' => 'page', 'post_name' => 'collision' ) );

		// This url should NOT return a post ID
		$badurl = site_url( '/example-collision' );
		$this->assertEquals( 0, url_to_postid( $badurl ) );
	}

	/**
	 * Reveals bug introduced in WP 3.0
	 *
	 * Run tests using multisite `phpunit -c multisite`
	 */
	function test_url_to_postid_ms_home_url_collision() {

		if ( ! is_multisite() ) {
			$this->markTestSkipped( 'test_url_to_postid_ms_home_url_collision requires multisite' );
			return false;
		}

		$blog_id = $this->factory->blog->create( array( 'path' => '/example' ) );
		switch_to_blog( $blog_id );

		$this->factory->post->create( array( 'post_title' => 'Collision ', 'post_type' => 'page' ) );

		// This url should NOT return a post ID
		$badurl = network_home_url( '/example-collision' );
		$this->assertEquals( 0, url_to_postid( $badurl ) );

		restore_current_blog();
	}
}