<?php eq(time() + 1, \org\rhaco\lang\Date::add(time(), 1, 0)); eq(time() + 60, \org\rhaco\lang\Date::add(time(), 0, 1)); eq(time() + 3600, \org\rhaco\lang\Date::add(time(), 0, 0, 1)); eq(time() - 1, \org\rhaco\lang\Date::add(time(), -1, 0)); eq(time() - 60, \org\rhaco\lang\Date::add(time(), 0, -1)); eq(time() - 3600, \org\rhaco\lang\Date::add(time(), 0, 0, -1));