return replicaCount, usage, timestamp, err
}

// GetMetricReplicas calculates the desired replica count based on a target metric usage
// (as a milli-value) for pods matching the given selector in the given namespace, and the
// current replica count

	replicaCountProposal, usageProposal, timestampProposal, err := a.replicaCalc.GetMetricReplicas(currentReplicas, metricSpec.Pods.Target.AverageValue.MilliValue(), metricSpec.Pods.Metric.Name, hpa.Namespace, selector, metricSelector)
	if err != nil {

	case podMetric:
		outReplicas, outUsage, outTimestamp, err = replicaCalc.GetMetricReplicas(tc.currentReplicas, tc.metric.targetUsage, tc.metric.name, testNamespace, selector, nil)
	default:
		t.Fatalf("Unknown metric type: %d", tc.metric.metricType)
	}

	if tc.expectedError != nil {