catching 404 error when machine sets not in use

Author: Fiona-Waters

test/support/machinesets.go

@@ -3,6 +3,7 @@ package support
 import (
 	"github.com/onsi/gomega"
 
+	"k8s.io/apimachinery/pkg/api/errors"
 	v1 "k8s.io/apimachinery/pkg/apis/meta/v1"
 
 	v1beta1 "github.com/openshift/api/machine/v1beta1"
@@ -31,6 +32,9 @@ func MachineSetId(machineSet v1beta1.MachineSet) string {
 
 func MachineSetsExist(t Test) bool {
 	ms, err := MachineSets(t)
+	if err != nil && errors.IsNotFound(err) {
+		return false
+	}
 	t.Expect(err).NotTo(gomega.HaveOccurred())
 	return ms != nil
 }