mirror of https://github.com/k3s-io/k3s
89 lines
2.3 KiB
Go
89 lines
2.3 KiB
Go
/*
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Copyright 2015 The Kubernetes Authors All rights reserved.
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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 container
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import (
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"reflect"
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"testing"
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"time"
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)
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// testRunTimeCache embeds runtimeCache with some additional methods for
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// testing.
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type testRuntimeCache struct {
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runtimeCache
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}
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func (r *testRuntimeCache) updateCacheWithLock() error {
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r.Lock()
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defer r.Unlock()
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return r.updateCache()
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}
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func (r *testRuntimeCache) getCachedPods() []*Pod {
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r.Lock()
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defer r.Unlock()
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return r.pods
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}
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func newTestRuntimeCache(getter podsGetter) *testRuntimeCache {
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c, _ := NewRuntimeCache(getter)
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return &testRuntimeCache{*c.(*runtimeCache)}
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}
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func TestGetPods(t *testing.T) {
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runtime := &FakeRuntime{}
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expected := []*Pod{{ID: "1111"}, {ID: "2222"}, {ID: "3333"}}
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runtime.PodList = expected
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cache := newTestRuntimeCache(runtime)
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actual, err := cache.GetPods()
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if err != nil {
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t.Errorf("unexpected error %v", err)
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}
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if !reflect.DeepEqual(expected, actual) {
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t.Errorf("expected %#v, got %#v", expected, actual)
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}
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}
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func TestForceUpdateIfOlder(t *testing.T) {
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runtime := &FakeRuntime{}
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cache := newTestRuntimeCache(runtime)
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// Cache old pods.
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oldpods := []*Pod{{ID: "1111"}}
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runtime.PodList = oldpods
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cache.updateCacheWithLock()
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// Update the runtime to new pods.
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newpods := []*Pod{{ID: "1111"}, {ID: "2222"}, {ID: "3333"}}
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runtime.PodList = newpods
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// An older timestamp should not force an update.
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cache.ForceUpdateIfOlder(time.Now().Add(-20 * time.Minute))
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actual := cache.getCachedPods()
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if !reflect.DeepEqual(oldpods, actual) {
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t.Errorf("expected %#v, got %#v", oldpods, actual)
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}
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// A newer timestamp should force an update.
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cache.ForceUpdateIfOlder(time.Now().Add(20 * time.Second))
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actual = cache.getCachedPods()
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if !reflect.DeepEqual(newpods, actual) {
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t.Errorf("expected %#v, got %#v", newpods, actual)
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}
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}
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