Altax\Module\Task\Process\ProcessResult::isSuccessful PHP Method

    public function isSuccessful()
    {
        if ($this->returnCode === 0) {
            return true;
        } else {
            return false;
        }
    }

 public function testIsSuccessful()
 {
     $processResult = new ProcessResult(0, "aaaa");
     $this->assertEquals(true, $processResult->isSuccessful());
     $processResult = new ProcessResult(1, "aaaa");
     $this->assertEquals(false, $processResult->isSuccessful());
 }