suite: "hpa"
templates:
  - hpa.yaml
tests:
  - it: "renders behavior when set"
    set:
      autoscaling.enabled: true
      autoscaling.behavior:
        scaleUp:
          stabilizationWindowSeconds: 60
          policies:
            - type: Pods
              value: 2
              periodSeconds: 60
        scaleDown:
          stabilizationWindowSeconds: 90
          policies:
            - type: Pods
              value: 1
              periodSeconds: 60
    asserts:
      - isKind: { of: HorizontalPodAutoscaler }
      - equal: { path: spec.behavior.scaleUp.stabilizationWindowSeconds, value: 60 }
      - equal: { path: spec.behavior.scaleDown.stabilizationWindowSeconds, value: 90 }

  - it: "does not render behavior when not set"
    set:
      autoscaling.enabled: true
    asserts:
      - isKind: { of: HorizontalPodAutoscaler }
      - isNull: { path: spec.behavior }

  - it: "scales on cpu at the documented 60 percent by default"
    set:
      autoscaling.enabled: true
    asserts:
      - isKind: { of: HorizontalPodAutoscaler }
      - equal: { path: "spec.metrics[0].resource.name", value: cpu }
      - equal: { path: "spec.metrics[0].resource.target.type", value: Utilization }
      - equal: { path: "spec.metrics[0].resource.target.averageUtilization", value: 60 }

  - it: "does not scale on memory by default"
    set:
      autoscaling.enabled: true
    asserts:
      - lengthEqual: { path: spec.metrics, count: 1 }

  - it: "honours an explicit cpu target override"
    set:
      autoscaling.enabled: true
      autoscaling.targetCPUUtilizationPercentage: 75
    asserts:
      - equal: { path: "spec.metrics[0].resource.target.averageUtilization", value: 75 }

  - it: "renders a memory metric only when a memory target is set"
    set:
      autoscaling.enabled: true
      autoscaling.targetMemoryUtilizationPercentage: 80
    asserts:
      - lengthEqual: { path: spec.metrics, count: 2 }
      - equal: { path: "spec.metrics[1].resource.name", value: memory }
      - equal: { path: "spec.metrics[1].resource.target.averageUtilization", value: 80 }

  - it: "renders no hpa when autoscaling is disabled"
    asserts:
      - hasDocuments: { count: 0 }