mirror of https://github.com/knative/pkg.git
125 lines
2.6 KiB
Go
125 lines
2.6 KiB
Go
/*
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Copyright 2018 The Knative 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 configmap
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import (
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"sync"
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"testing"
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corev1 "k8s.io/api/core/v1"
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metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
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)
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type counter struct {
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name string
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mu sync.RWMutex
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cfg []*corev1.ConfigMap
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wg *sync.WaitGroup
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}
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func (c *counter) callback(cm *corev1.ConfigMap) {
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c.mu.Lock()
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defer c.mu.Unlock()
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c.cfg = append(c.cfg, cm)
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if c.wg != nil {
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c.wg.Done()
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}
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}
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func (c *counter) count() int {
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c.mu.RLock()
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defer c.mu.RUnlock()
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return len(c.cfg)
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}
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func TestManualStartNOOP(t *testing.T) {
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watcher := ManualWatcher{
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Namespace: "default",
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}
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if err := watcher.Start(nil); err != nil {
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t.Error("Unexpected error watcher.Start() =", err)
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}
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}
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func TestCallbackInvoked(t *testing.T) {
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watcher := ManualWatcher{
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Namespace: "default",
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}
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// Verify empty works as designed.
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watcher.OnChange(&corev1.ConfigMap{
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ObjectMeta: metav1.ObjectMeta{
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Namespace: "default",
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Name: "foo",
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},
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})
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observer := counter{}
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watcher.Watch("foo", observer.callback)
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watcher.OnChange(&corev1.ConfigMap{
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ObjectMeta: metav1.ObjectMeta{
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Namespace: "default",
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Name: "foo",
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},
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})
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if observer.count() == 0 {
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t.Error("Expected callback to be invoked - got invocations", observer.count())
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}
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}
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func TestDifferentNamespace(t *testing.T) {
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watcher := ManualWatcher{
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Namespace: "default",
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}
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observer := counter{}
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watcher.Watch("foo", observer.callback)
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watcher.OnChange(&corev1.ConfigMap{
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ObjectMeta: metav1.ObjectMeta{
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Namespace: "not-default",
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Name: "foo",
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},
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})
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if observer.count() != 0 {
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t.Error("Expected callback to be not be invoked - got invocations", observer.count())
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}
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}
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func TestDifferentConfigName(t *testing.T) {
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watcher := ManualWatcher{
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Namespace: "default",
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}
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observer := counter{}
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watcher.OnChange(&corev1.ConfigMap{
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ObjectMeta: metav1.ObjectMeta{
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Namespace: "default",
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Name: "foo",
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},
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})
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watcher.Watch("bar", observer.callback)
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if observer.count() != 0 {
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t.Error("Expected callback to be not be invoked - got invocations", observer.count())
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}
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}
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