CIPHPUnitTestCase::assertResponseCookie PHP Method

    public function assertResponseCookie($name, $value, $allow_duplicate = false)
    {
        $CI =& get_instance();
        $cookies = isset($CI->output->_cookies[$name]) ? $CI->output->_cookies[$name] : null;
        if ($cookies === null) {
            $this->fail("The cookie '{$name}' is not set.\nNote that `assertResponseCookie()` can only assert cookies set by `\$this->input->set_cookie()`");
        }
        $count = count($cookies);
        if ($count > 1 && !$allow_duplicate) {
            $values = [];
            foreach ($cookies as $key => $val) {
                $values[] = "'{$val['value']}'";
            }
            $values = implode(' and ', $values);
            $this->fail("You have more than one cookie '{$name}'. The values are {$values}.\nIf it is okay, please set `true` as the 3rd argument of `assertResponseCookie()`");
        }
        // Get the last cookie
        $cookie = $cookies[$count - 1];
        if (is_string($value)) {
            $this->assertEquals($value, $cookie['value'], "The cookie '{$name}' value is not '{$value}' but '{$cookie['value']}'.");
            return;
        }
        foreach ($value as $key => $val) {
            $this->assertEquals($value[$key], $cookie[$key], "The cookie '{$name}' {$key} is not '{$value[$key]}' but '{$cookie[$key]}'.");
        }
    }