PhpSpec\Process\Context\ExecutionContext::asEnv PHP Method

    public function asEnv();

 private function buildArgString()
 {
     $argstring = '';
     foreach ($this->executionContext->asEnv() as $key => $value) {
         $argstring .= 'SET ' . $key . '=' . $value . ' && ';
     }
     return $argstring;
 }