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https://github.com/optim-enterprises-bv/kubernetes.git
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082b48240a
We are going to use PodBackoff for controlling backoff when adding unschedulable pods back to the active scheduling queue. In order to do this more easily, limit the interface for PodBackoff to only this struct (rather than exposing BackoffEntry) and change the backing expiry implementation to be queue based.
88 lines
2.4 KiB
Go
88 lines
2.4 KiB
Go
/*
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Copyright 2017 The Kubernetes Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package util
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import (
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"testing"
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"time"
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ktypes "k8s.io/apimachinery/pkg/types"
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)
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type fakeClock struct {
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t time.Time
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}
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func (f *fakeClock) Now() time.Time {
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return f.t
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}
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func TestBackoff(t *testing.T) {
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clock := fakeClock{}
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backoff := CreatePodBackoffWithClock(1*time.Second, 60*time.Second, &clock)
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tests := []struct {
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podID ktypes.NamespacedName
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expectedDuration time.Duration
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advanceClock time.Duration
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}{
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{
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podID: ktypes.NamespacedName{Namespace: "default", Name: "foo"},
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expectedDuration: 1 * time.Second,
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},
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{
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podID: ktypes.NamespacedName{Namespace: "default", Name: "foo"},
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expectedDuration: 2 * time.Second,
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},
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{
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podID: ktypes.NamespacedName{Namespace: "default", Name: "foo"},
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expectedDuration: 4 * time.Second,
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},
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{
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podID: ktypes.NamespacedName{Namespace: "default", Name: "bar"},
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expectedDuration: 1 * time.Second,
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advanceClock: 120 * time.Second,
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},
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// 'foo' should have been gc'd here.
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{
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podID: ktypes.NamespacedName{Namespace: "default", Name: "foo"},
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expectedDuration: 1 * time.Second,
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},
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}
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for _, test := range tests {
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duration := backoff.BackoffPod(test.podID)
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if duration != test.expectedDuration {
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t.Errorf("expected: %s, got %s for %s", test.expectedDuration.String(), duration.String(), test.podID)
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}
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clock.t = clock.t.Add(test.advanceClock)
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backoff.Gc()
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}
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fooID := ktypes.NamespacedName{Namespace: "default", Name: "foo"}
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be := backoff.getEntry(fooID)
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be.backoff = 60 * time.Second
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duration := backoff.BackoffPod(fooID)
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if duration != 60*time.Second {
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t.Errorf("expected: 60, got %s", duration.String())
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}
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// Verify that we split on namespaces correctly, same name, different namespace
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fooID.Namespace = "other"
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duration = backoff.BackoffPod(fooID)
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if duration != 1*time.Second {
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t.Errorf("expected: 1, got %s", duration.String())
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}
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}
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