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LowNodeUtilization: unit test resourceUsagePercentages to validate percentages are computed correctly

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This commit is contained in:
Jan Chaloupka
2021-02-11 15:57:24 +01:00
parent b63c6fac27
commit 500aaea4dd
1 changed files with 39 additions and 0 deletions
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39
pkg/descheduler/strategies/lownodeutilization_test.go
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@@ -19,6 +19,7 @@ package strategies
import (
"context"
"fmt"
"math"
"strings"
"testing"
@@ -776,3 +777,41 @@ func TestWithTaints(t *testing.T) {
})
}
}
func TestResourceUsagePercentages(t *testing.T) {
resourceUsagePercentage := resourceUsagePercentages(NodeUsage{
node: &v1.Node{
Status: v1.NodeStatus{
Capacity: v1.ResourceList{
v1.ResourceCPU: *resource.NewMilliQuantity(2000, resource.DecimalSI),
v1.ResourceMemory: *resource.NewQuantity(3977868*1024, resource.BinarySI),
v1.ResourcePods: *resource.NewQuantity(29, resource.BinarySI),
},
Allocatable: v1.ResourceList{
v1.ResourceCPU: *resource.NewMilliQuantity(1930, resource.DecimalSI),
v1.ResourceMemory: *resource.NewQuantity(3287692*1024, resource.BinarySI),
v1.ResourcePods: *resource.NewQuantity(29, resource.BinarySI),
},
},
},
usage: map[v1.ResourceName]*resource.Quantity{
v1.ResourceCPU: resource.NewMilliQuantity(1220, resource.DecimalSI),
v1.ResourceMemory: resource.NewQuantity(3038982964, resource.BinarySI),
v1.ResourcePods: resource.NewQuantity(11, resource.BinarySI),
},
})
expectedUsageInIntPercentage := map[v1.ResourceName]float64{
v1.ResourceCPU: 63,
v1.ResourceMemory: 90,
v1.ResourcePods: 37,
}
for resourceName, percentage := range expectedUsageInIntPercentage {
if math.Floor(resourceUsagePercentage[resourceName]) != percentage {
t.Errorf("Incorrect percentange computation, expected %v, got math.Floor(%v) instead", percentage, resourceUsagePercentage[resourceName])
}
}
t.Logf("resourceUsagePercentage: %#v\n", resourceUsagePercentage)
}