Merge pull request kubernetes#75141 from liggitt/deflake-max_json_patch_operations_test

Ensure namespaces exist on start

Author: k8s-ci-robot

test/integration/framework/test_server.go

@@ -27,6 +27,7 @@ import (
 
 	"github.com/pborman/uuid"
 
+	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
 	"k8s.io/apimachinery/pkg/util/wait"
 	genericapiserver "k8s.io/apiserver/pkg/server"
 	genericapiserveroptions "k8s.io/apiserver/pkg/server/options"
@@ -154,6 +155,13 @@ func StartTestServer(t *testing.T, stopCh <-chan struct{}, setup TestServerSetup
 			return false, nil
 		}
 
+		if _, err := kubeClient.CoreV1().Namespaces().Get("default", metav1.GetOptions{}); err != nil {
+			return false, nil
+		}
+		if _, err := kubeClient.CoreV1().Namespaces().Get("kube-system", metav1.GetOptions{}); err != nil {
+			return false, nil
+		}
+
 		return true, nil
 	})
 	if err != nil {