fix fuzzy conversion tests

Author: schrej

exp/ipam/api/v1alpha1/conversion.go

@@ -54,7 +54,9 @@ func (src *IPAddressClaim) ConvertTo(dstRaw conversion.Hub) error {
 		return err
 	}
 
-	dst.Spec.ClusterName = src.ObjectMeta.Labels["cluster.x-k8s.io/cluster-name"]
+	if src.ObjectMeta.Labels != nil {
+		dst.Spec.ClusterName = src.ObjectMeta.Labels["cluster.x-k8s.io/cluster-name"]
+	}
 
 	return nil
 }
@@ -67,6 +69,9 @@ func (dst *IPAddressClaim) ConvertFrom(srcRaw conversion.Hub) error {
 	}
 
 	if src.Spec.ClusterName != "" {
+		if dst.ObjectMeta.Labels == nil {
+			dst.ObjectMeta.Labels = map[string]string{}
+		}
 		dst.ObjectMeta.Labels["cluster.x-k8s.io/cluster-name"] = src.Spec.ClusterName
 	}
 

exp/ipam/api/v1alpha1/conversion_test.go

@@ -17,6 +17,7 @@ limitations under the License.
 package v1alpha1
 
 import (
+	"sigs.k8s.io/controller-runtime/pkg/conversion"
 	"testing"
 
 	"k8s.io/apimachinery/pkg/api/apitesting/fuzzer"
@@ -32,7 +33,13 @@ func TestFuzzyConversion(t *testing.T) {
 		FuzzerFuncs: []fuzzer.FuzzerFuncs{},
 	}))
 	t.Run("for IPAddressClaim", utilconversion.FuzzTestFunc(utilconversion.FuzzTestFuncInput{
-		Hub:         &ipamv1.IPAddressClaim{},
+		Hub: &ipamv1.IPAddressClaim{},
+		HubAfterMutation: func(hub conversion.Hub) {
+			addr := hub.(*ipamv1.IPAddressClaim)
+			if addr.Labels != nil {
+				delete(addr.Labels, "cluster.x-k8s.io/cluster-name")
+			}
+		},
 		Spoke:       &IPAddressClaim{},
 		FuzzerFuncs: []fuzzer.FuzzerFuncs{},
 	}))