public MonitoringJob(TargetRecord targetRecord, IProbe probe, ILogger <MonitoringJob> logger)
{
targetRecord.VerifyNotNull(nameof(targetRecord))
.VerifyAssert(x => !x.ReadyUrl.IsEmpty(), x => nameof(x.ReadyUrl))
.VerifyAssert(x => x.FrequencyInSeconds != null, x => nameof(x.FrequencyInSeconds));
probe.VerifyNotNull(nameof(probe));
logger.VerifyNotNull(nameof(logger));
_targetRecord = targetRecord;
_probe = probe;
_logger = logger;
}