/**
* Test get_preview_url()/set_preview_url methods.
*
* @see WP_Customize_Manager::get_preview_url()
* @see WP_Customize_Manager::set_preview_url()
*/
function test_preview_url() {
$this->assertEquals( home_url( '/' ), $this->manager->get_preview_url() );
$preview_url = home_url( '/foo/bar/baz/' );
$this->manager->set_preview_url( $preview_url );
$this->assertEquals( $preview_url, $this->manager->get_preview_url() );
$this->manager->set_preview_url( 'http://illegalsite.example.com/food/' );
$this->assertEquals( home_url( '/' ), $this->manager->get_preview_url() );
}