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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,159 @@ | ||
| // Copyright 2020 Antrea Authors | ||
| // | ||
| // Licensed under the Apache License, Version 2.0 (the "License"); | ||
| // you may not use this file except in compliance with the License. | ||
| // You may obtain a copy of the License at | ||
| // | ||
| // http://www.apache.org/licenses/LICENSE-2.0 | ||
| // | ||
| // Unless required by applicable law or agreed to in writing, software | ||
| // distributed under the License is distributed on an "AS IS" BASIS, | ||
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| // See the License for the specific language governing permissions and | ||
| // limitations under the License. | ||
|
|
||
| package traceflow | ||
|
|
||
| import ( | ||
| "context" | ||
| "testing" | ||
| "time" | ||
|
|
||
| "github.com/stretchr/testify/assert" | ||
| metav1 "k8s.io/apimachinery/pkg/apis/meta/v1" | ||
| "k8s.io/apimachinery/pkg/runtime" | ||
| "k8s.io/apimachinery/pkg/util/wait" | ||
| "k8s.io/client-go/informers" | ||
| "k8s.io/client-go/kubernetes/fake" | ||
| k8stesting "k8s.io/client-go/testing" | ||
|
|
||
| ops "github.com/vmware-tanzu/antrea/pkg/apis/ops/v1alpha1" | ||
| "github.com/vmware-tanzu/antrea/pkg/client/clientset/versioned" | ||
| fakeversioned "github.com/vmware-tanzu/antrea/pkg/client/clientset/versioned/fake" | ||
| crdinformers "github.com/vmware-tanzu/antrea/pkg/client/informers/externalversions" | ||
| ) | ||
|
|
||
| var alwaysReady = func() bool { return true } | ||
|
|
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| const informerDefaultResync time.Duration = 30 * time.Second | ||
|
|
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| type traceflowController struct { | ||
| *Controller | ||
| client versioned.Interface | ||
| informerFactory informers.SharedInformerFactory | ||
| crdInformerFactory crdinformers.SharedInformerFactory | ||
| } | ||
|
|
||
| func newController() *traceflowController { | ||
| client := fake.NewSimpleClientset() | ||
| crdClient := newCRDClientset() | ||
| informerFactory := informers.NewSharedInformerFactory(client, informerDefaultResync) | ||
| crdInformerFactory := crdinformers.NewSharedInformerFactory(crdClient, informerDefaultResync) | ||
| controller := NewTraceflowController(crdClient, | ||
| informerFactory.Core().V1().Pods(), | ||
| crdInformerFactory.Ops().V1alpha1().Traceflows()) | ||
| controller.traceflowListerSynced = alwaysReady | ||
| return &traceflowController{ | ||
| controller, | ||
| crdClient, | ||
| informerFactory, | ||
| crdInformerFactory, | ||
| } | ||
| } | ||
|
|
||
| func TestTraceflow(t *testing.T) { | ||
| // Use shorter timeout. | ||
| timeoutDuration = 2 * time.Second | ||
| timeoutCheckInterval = timeoutDuration / 2 | ||
|
|
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| tfc := newController() | ||
| stopCh := make(chan struct{}) | ||
| tfc.crdInformerFactory.Start(stopCh) | ||
| go tfc.Run(stopCh) | ||
|
|
||
| numRunningTraceflows := func() int { | ||
| tfc.runningTraceflowsMutex.Lock() | ||
| defer tfc.runningTraceflowsMutex.Unlock() | ||
| return len(tfc.runningTraceflows) | ||
| } | ||
|
|
||
| tf1 := ops.Traceflow{ | ||
| ObjectMeta: metav1.ObjectMeta{Name: "tf1", UID: "uid1"}, | ||
| Spec: ops.TraceflowSpec{ | ||
| Source: ops.Source{Namespace: "ns1", Pod: "pod1"}, | ||
| Destination: ops.Destination{Namespace: "ns2", Pod: "pod2"}, | ||
| }, | ||
| } | ||
|
|
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| tfc.client.OpsV1alpha1().Traceflows().Create(context.TODO(), &tf1, metav1.CreateOptions{}) | ||
| res, _ := tfc.waitForTraceflow("tf1", ops.Running, time.Second) | ||
| assert.NotNil(t, res) | ||
| // DataplaneTag should be allocated by Controller. | ||
| assert.True(t, res.Status.DataplaneTag > 0) | ||
| assert.Equal(t, numRunningTraceflows(), 1) | ||
|
|
||
| // Test Controller handling of successful Traceflow. | ||
| res.Status.Results = []ops.NodeResult{ | ||
| // Sender | ||
| { | ||
| Observations: []ops.Observation{{Component: ops.SpoofGuard}}, | ||
| }, | ||
| // Receiver | ||
| { | ||
| Observations: []ops.Observation{{Action: ops.Delivered}}, | ||
| }, | ||
| } | ||
| tfc.client.OpsV1alpha1().Traceflows().Update(context.TODO(), res, metav1.UpdateOptions{}) | ||
| res, _ = tfc.waitForTraceflow("tf1", ops.Succeeded, time.Second) | ||
| assert.NotNil(t, res) | ||
| // DataplaneTag should be deallocated by Controller. | ||
| assert.True(t, res.Status.DataplaneTag == 0) | ||
| assert.Equal(t, numRunningTraceflows(), 0) | ||
| tfc.client.OpsV1alpha1().Traceflows().Delete(context.TODO(), "tf1", metav1.DeleteOptions{}) | ||
|
|
||
| // Test Traceflow timeout. | ||
| startTime := time.Now() | ||
| tfc.client.OpsV1alpha1().Traceflows().Create(context.TODO(), &tf1, metav1.CreateOptions{}) | ||
| res, _ = tfc.waitForTraceflow("tf1", ops.Running, time.Second) | ||
| assert.NotNil(t, res) | ||
| res, _ = tfc.waitForTraceflow("tf1", ops.Failed, timeoutDuration+timeoutCheckInterval) | ||
| assert.NotNil(t, res) | ||
| assert.True(t, time.Now().Sub(startTime) >= timeoutDuration) | ||
| assert.Equal(t, res.Status.Reason, traceflowTimeout) | ||
| assert.True(t, res.Status.DataplaneTag == 0) | ||
| assert.Equal(t, numRunningTraceflows(), 0) | ||
|
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| close(stopCh) | ||
| } | ||
|
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| func (tfc *traceflowController) waitForTraceflow(name string, phase ops.TraceflowPhase, timeout time.Duration) (*ops.Traceflow, error) { | ||
| var tf *ops.Traceflow | ||
| var err error | ||
| if err = wait.Poll(100*time.Millisecond, timeout, func() (bool, error) { | ||
| tf, err = tfc.client.OpsV1alpha1().Traceflows().Get(context.TODO(), name, metav1.GetOptions{}) | ||
| if err != nil || tf.Status.Phase != phase { | ||
| return false, nil | ||
| } | ||
| return true, nil | ||
| }); err != nil { | ||
| return nil, err | ||
| } | ||
| return tf, nil | ||
| } | ||
|
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| func newCRDClientset() *fakeversioned.Clientset { | ||
| client := fakeversioned.NewSimpleClientset() | ||
|
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| client.PrependReactor("create", "traceflows", k8stesting.ReactionFunc(func(action k8stesting.Action) (bool, runtime.Object, error) { | ||
| tf := action.(k8stesting.CreateAction).GetObject().(*ops.Traceflow) | ||
|
|
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| // Fake client does not set CreationTimestamp. | ||
| if tf.ObjectMeta.CreationTimestamp == (metav1.Time{}) { | ||
| tf.ObjectMeta.CreationTimestamp.Time = time.Now() | ||
| } | ||
|
|
||
| return false, tf, nil | ||
| })) | ||
|
|
||
| return client | ||
| } |
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