add cronjob event message verification to e2e test

test/e2e/cli.go

@@ -160,7 +160,7 @@ type KnRunResult struct {
 	ErrorExpected bool
 }
 
-// RunKubectl runs "kk" in a given namespace
+// RunKn runs "kn" in a given namespace
 func RunKn(namespace string, args []string) KnRunResult {
 	if namespace != "" {
 		args = append(args, "--namespace", namespace)

test/e2e/common.go

@@ -29,6 +29,7 @@ import (
 
 const (
 	KnDefaultTestImage string        = "gcr.io/knative-samples/helloworld-go"
+	EventDisplayImage  string        = "gcr.io/knative-releases/github.com/knative/eventing-contrib/cmd/event_display"
 	MaxRetries         int           = 10
 	RetrySleepDuration time.Duration = 5 * time.Second
 )

test/e2e/cronjob_test.go

@@ -18,7 +18,10 @@
 package e2e
 
 import (
+	"fmt"
+	"strings"
 	"testing"
+	"time"
 
 	"gotest.tools/assert"
 
@@ -57,6 +60,47 @@ func TestSourceCronJob(t *testing.T) {
 	out, err := test.getResourceFieldsWithJSONPath("cronjobsource", "testcronjobsource2", jpSinkRefNameInSpec)
 	assert.NilError(t, err)
 	assert.Equal(t, out, "testsvc1")
+
+	t.Log("verify event messages from cronjob source")
+	mymsg := "This is a message from cronjob."
+	test.serviceCreateEventDisplay(t, r, "displaysvc")
+	test.cronJobSourceCreate(t, r, "testcronjobsource3", "*/1 * * * *", mymsg, "svc:displaysvc")
+	err = test.verifyDeventDisplayLogs(t, "displaysvc", mymsg)
+	assert.NilError(t, err)
+}
+
+func (test *e2eTest) verifyDeventDisplayLogs(t *testing.T, svcname string, message string) error {
+	var (
+		retries int
+		err     error
+		out     string
+	)
+
+	selectorstr := fmt.Sprintf("serving.knative.dev/service=%s", svcname)
+	for retries < 5 {
+		out, err = kubectl{}.Run("logs", selectorstr, "-l", selectorstr, "-c", "user-container")
+		if err != nil {
+			t.Logf("error happens at kubectl logs -l %s : %v", selectorstr, err)
+		} else if err == nil && strings.Contains(out, message) {
+			break
+		} else {
+			t.Logf("return from kubectl logs -l %s : %s", selectorstr, out)
+		}
+		retries++
+		time.Sleep(2 * time.Minute)
+	}
+
+	if retries == 5 {
+		return fmt.Errorf("Expected log incorrect after retry 5 times. Expecting to include:\n%s\n Instead found:\n%s\n", message, out)
+	} else {
+		return nil
+	}
+}
+
+func (test *e2eTest) serviceCreateEventDisplay(t *testing.T, r *KnRunResultCollector, serviceName string) {
+	out := test.kn.Run("service", "create", serviceName, "--image", EventDisplayImage)
+	r.AssertNoError(out)
+	assert.Check(t, util.ContainsAllIgnoreCase(out.Stdout, "service", serviceName, "creating", "namespace", test.kn.namespace, "ready"))
 }
 
 func (test *e2eTest) cronJobSourceCreate(t *testing.T, r *KnRunResultCollector, sourceName string, schedule string, data string, sink string) {