forked from knative/eventing
/
broker_channel_flow_test_helper.go
155 lines (128 loc) · 5.69 KB
/
broker_channel_flow_test_helper.go
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/*
Copyright 2019 The Knative 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 helpers
import (
"fmt"
"testing"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/apimachinery/pkg/util/uuid"
"knative.dev/eventing/pkg/apis/eventing/v1alpha1"
"knative.dev/eventing/test/lib"
"knative.dev/eventing/test/lib/cloudevents"
"knative.dev/eventing/test/lib/resources"
)
// BrokerChannelFlowTestHelper is the helper function for broker_channel_flow_test
func BrokerChannelFlowTestHelper(t *testing.T,
channelTestRunner lib.ChannelTestRunner,
options ...lib.SetupClientOption) {
const (
senderName = "e2e-brokerchannel-sender"
brokerName = "e2e-brokerchannel-broker"
any = v1alpha1.TriggerAnyFilter
eventType1 = "type1"
eventType2 = "type2"
eventSource1 = "source1"
eventSource2 = "source2"
eventBody = "e2e-brokerchannel-body"
triggerName1 = "e2e-brokerchannel-trigger1"
triggerName2 = "e2e-brokerchannel-trigger2"
triggerName3 = "e2e-brokerchannel-trigger3"
transformationPodName = "e2e-brokerchannel-trans-pod"
loggerPodName1 = "e2e-brokerchannel-logger-pod1"
loggerPodName2 = "e2e-brokerchannel-logger-pod2"
channelName = "e2e-brokerchannel-channel"
subscriptionName = "e2e-brokerchannel-subscription"
)
channelTestRunner.RunTests(t, lib.FeatureBasic, func(st *testing.T, channel metav1.TypeMeta) {
client := lib.Setup(st, true, options...)
defer lib.TearDown(client)
// create required RBAC resources including ServiceAccounts and ClusterRoleBindings for Brokers
client.CreateRBACResourcesForBrokers()
// create a new broker
client.CreateBrokerOrFail(brokerName, resources.WithChannelTemplateForBroker(&channel))
client.WaitForResourceReadyOrFail(brokerName, lib.BrokerTypeMeta)
// create the event we want to transform to
transformedEventBody := fmt.Sprintf("%s %s", eventBody, string(uuid.NewUUID()))
eventAfterTransformation := cloudevents.New(
fmt.Sprintf(`{"msg":%q}`, transformedEventBody),
cloudevents.WithSource(eventSource2),
cloudevents.WithType(eventType2),
)
// create the transformation service for trigger1
transformationPod := resources.EventTransformationPod(transformationPodName, eventAfterTransformation)
client.CreatePodOrFail(transformationPod, lib.WithService(transformationPodName))
// create trigger1 to receive the original event, and do event transformation
client.CreateTriggerOrFail(
triggerName1,
resources.WithBroker(brokerName),
resources.WithDeprecatedSourceAndTypeTriggerFilter(eventSource1, eventType1),
resources.WithSubscriberServiceRefForTrigger(transformationPodName),
)
// create logger pod and service for trigger2
loggerPod1 := resources.EventLoggerPod(loggerPodName1)
client.CreatePodOrFail(loggerPod1, lib.WithService(loggerPodName1))
// create trigger2 to receive all the events
client.CreateTriggerOrFail(
triggerName2,
resources.WithBroker(brokerName),
resources.WithDeprecatedSourceAndTypeTriggerFilter(any, any),
resources.WithSubscriberServiceRefForTrigger(loggerPodName1),
)
// create channel for trigger3
client.CreateChannelOrFail(channelName, &channel)
client.WaitForResourceReadyOrFail(channelName, &channel)
// create trigger3 to receive the transformed event, and send it to the channel
channelURL, err := client.GetAddressableURI(channelName, &channel)
if err != nil {
st.Fatalf("Failed to get the url for the channel %q: %v", channelName, err)
}
client.CreateTriggerOrFail(
triggerName3,
resources.WithBroker(brokerName),
resources.WithDeprecatedSourceAndTypeTriggerFilter(eventSource2, eventType2),
resources.WithSubscriberURIForTrigger(channelURL),
)
// create logger pod and service for subscription
loggerPod2 := resources.EventLoggerPod(loggerPodName2)
client.CreatePodOrFail(loggerPod2, lib.WithService(loggerPodName2))
// create subscription
client.CreateSubscriptionOrFail(
subscriptionName,
channelName,
&channel,
resources.WithSubscriberForSubscription(loggerPodName2),
)
// wait for all test resources to be ready, so that we can start sending events
if err := client.WaitForAllTestResourcesReady(); err != nil {
st.Fatalf("Failed to get all test resources ready: %v", err)
}
// send fake CloudEvent to the broker
eventToSend := cloudevents.New(
fmt.Sprintf(`{"msg":%q}`, eventBody),
cloudevents.WithSource(eventSource1),
cloudevents.WithType(eventType1),
)
if err := client.SendFakeEventToAddressable(senderName, brokerName, lib.BrokerTypeMeta, eventToSend); err != nil {
st.Fatalf("Failed to send fake CloudEvent to the broker %q", brokerName)
}
// check if trigger2's logging service receives both events
eventBodies := []string{transformedEventBody, eventBody}
if err := client.CheckLog(loggerPodName1, lib.CheckerContainsAll([]string{transformedEventBody, eventBody})); err != nil {
st.Fatalf("Strings %v not found in logs of logger pod %q: %v", eventBodies, loggerPodName1, err)
}
// check if subscription's logging service receives the transformed event
if err := client.CheckLog(loggerPodName2, lib.CheckerContains(transformedEventBody)); err != nil {
st.Fatalf("Strings %q not found in logs of logger pod %q: %v", transformedEventBody, loggerPodName2, err)
}
})
}