public function execute($i, $maxProcesses, $suite, $currentProcessCounter, $isFirstOnItsThread = false)
    {
        return array_change_key_case(static::cleanEnvVariables($_SERVER) + $_ENV + [
            self::ENV_TEST_CHANNEL => (int) $i,
            self::ENV_TEST_CHANNEL_READABLE => 'test_'.$i,
            self::ENV_TEST_CHANNELS_NUMBER => (int) $maxProcesses,
            self::ENV_TEST_ARGUMENT => (string) $suite,
            self::ENV_TEST_INCREMENTAL_NUMBER => (int) $currentProcessCounter,
            self::ENV_TEST_IS_FIRST_ON_CHANNEL => (int) $isFirstOnItsThread,
        ], CASE_UPPER);
    }