mirror of
https://github.com/openfaas/faas.git
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7fe67d7af6
Introduced an new label to set the scaling factor that is used to calculate th proportions, setting it to 0 also allows to disable scaling. Updated the tests to reflect the changes and added a new test which shows that setting the scaling factor to 0 indeed does disable scaling. Ensured that the scaling factor is always between [0 and 100]. Signed-off-by: Simon Pelczer <templum.dev@gmail.com>
88 lines
2.4 KiB
Go
88 lines
2.4 KiB
Go
// Copyright (c) Alex Ellis 2017. All rights reserved.
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// Licensed under the MIT license. See LICENSE file in the project root for full license information.
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package handlers
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import (
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"testing"
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)
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func TestDisabledScale(t *testing.T) {
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minReplicas := uint64(1)
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scalingFactor := uint64(0)
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newReplicas := CalculateReplicas("firing", DefaultMinReplicas, DefaultMaxReplicas, minReplicas, scalingFactor)
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if newReplicas != 0 {
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t.Log("Expected not to scale")
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t.Fail()
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}
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}
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func TestParameterEdge(t *testing.T){
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minReplicas := uint64(0)
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scalingFactor := uint64(0)
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newReplicas := CalculateReplicas("firing", DefaultMinReplicas, DefaultMaxReplicas, minReplicas, scalingFactor)
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if newReplicas != 0 {
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t.Log("Expected not to scale")
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t.Fail()
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}
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}
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func TestMaxScale(t *testing.T){
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minReplicas := uint64(1)
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scalingFactor := uint64(100)
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newReplicas := CalculateReplicas("firing", DefaultMinReplicas, DefaultMaxReplicas, minReplicas, scalingFactor)
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if newReplicas != 20 {
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t.Log("Expected ceiling of 20 replicas")
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t.Fail()
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}
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}
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func TestInitialScale(t *testing.T) {
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minReplicas := uint64(1)
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scalingFactor := uint64(20)
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newReplicas := CalculateReplicas("firing", DefaultMinReplicas, DefaultMaxReplicas, minReplicas, scalingFactor)
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if newReplicas != 4 {
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t.Log("Expected the increment to equal 4")
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t.Fail()
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}
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}
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func TestScale(t *testing.T) {
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minReplicas := uint64(1)
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scalingFactor := uint64(20)
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newReplicas := CalculateReplicas("firing", 4, DefaultMaxReplicas, minReplicas, scalingFactor)
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if newReplicas != 8 {
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t.Log("Expected newReplicas to equal 8")
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t.Fail()
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}
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}
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func TestScaleCeiling(t *testing.T) {
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minReplicas := uint64(1)
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scalingFactor := uint64(20)
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newReplicas := CalculateReplicas("firing", 20, DefaultMaxReplicas, minReplicas, scalingFactor)
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if newReplicas != 20 {
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t.Log("Expected ceiling of 20 replicas")
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t.Fail()
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}
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}
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func TestScaleCeilingEdge(t *testing.T) {
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minReplicas := uint64(1)
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scalingFactor := uint64(20)
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newReplicas := CalculateReplicas("firing", 19, DefaultMaxReplicas, minReplicas, scalingFactor)
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if newReplicas != 20 {
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t.Log("Expected ceiling of 20 replicas")
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t.Fail()
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}
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}
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func TestBackingOff(t *testing.T) {
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minReplicas := uint64(1)
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scalingFactor := uint64(20)
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newReplicas := CalculateReplicas("resolved", 8, DefaultMaxReplicas, minReplicas, scalingFactor)
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if newReplicas != 1 {
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t.Log("Expected backing off to 1 replica")
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t.Fail()
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}
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} |