public function testSaveLoad()
{
$zmsg = new Zmsg();
$zmsg->body_set("Hello");
$zmsg->wrap("address1", "");
$zmsg->wrap("address2");
$this->assertEquals($zmsg->parts(), 4);
$fh = fopen(sys_get_temp_dir() . "/zmsgtest.zmsg", 'w');
$zmsg->save($fh);
fclose($fh);
$fh = fopen(sys_get_temp_dir() . "/zmsgtest.zmsg", 'r');
$zmsg2 = new Zmsg();
$zmsg2->load($fh);
$this->assertEquals($zmsg2->last(), $zmsg->last());
fclose($fh);
$this->assertEquals($zmsg2->parts(), 4);
}
