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Add WIP watch event tooling

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This commit is contained in:
Caleb Woodbine 2020-05-18 16:32:38 +12:00
parent 55d71532c0
commit fcb04acd70
1 changed files with 34 additions and 0 deletions
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34
test/e2e/framework/util.go
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@ -51,6 +51,7 @@ import (
"k8s.io/apimachinery/pkg/util/wait"
"k8s.io/apimachinery/pkg/watch"
utilfeature "k8s.io/apiserver/pkg/util/feature"
"k8s.io/client-go/dynamic"
clientset "k8s.io/client-go/kubernetes"
"k8s.io/client-go/rest"
restclient "k8s.io/client-go/rest"
@ -1284,3 +1285,36 @@ func taintExists(taints []v1.Taint, taintToFind *v1.Taint) bool {
}
return false
}
// WatchEventEnsurerAndManager
// manages a watch for a given resource, ensures that events take place in a given order, retries the test on failure
func WatchEventEnsurerAndManager(testContext context.Context, dc dynamic.Interface, resourceType schema.GroupVersionResource, namespace string, resourceName string, listOptions metav1.ListOptions, expectedWatchEvents []watch.Event, scenario func(*watch.Interface) []watch.Event) {
retries := 3
retriesLoop:
for try := 1; try <= retries; try++ {
var watchEvents []watch.Event
resourceWatch := &watch.Interface{}
// TODO consider watch deaths
&resourceWatch, err = dc.Resource(resourceType).Namespace(namespace).Watch(testContext, listOptions)
framework.ExpectNoError(err, "Failed to set a resource watch up for resourceType %v in namespace %s", resourceType, namespace)
actualWatchEvents := scenario(resourceWatch)
framework.ExpectEqual(len(expectedWatchEvents) <= len(actualWatchEvents), true, "Amount of actual watch events to be equal to or greater than the amount of expected watch events")
expectedWatchEventsLoop:
for expectedWatchEventIndex, expectedWatchEvent := range expectedWatchEvents {
for actualWatchEventIndex, _ := range actualWatchEvents {
if actualWatchEvents[expectedWatchEventIndex].Type == expectedWatchEvents[actualWatchEventIndex].Type {
watchEvents = append(watchEvents, expectedWatchEvent)
continue expectedWatchEventsLoop
}
}
}
// TODO clean up resources, based on watchEvent.Object, using DynamicClient
if len(watchEvents) != len(actualWatchEvents) {
continue retriesLoop
}
}
}