[test] Add GetNAD and CreateNAD test helper

GetNAD - retrieves a NetworkAttachmentDefinition resource.
Example usage:

~~~
th.GetNAD(types.NamespacedName{Name: "test-nad", Namespace: "test-namespace"})
~~~

CreateNAD creates a new NetworkAttachmentDefinition resource with the provided spec.
Example usage:

~~~
spec := map[string]interface{}{"key": "value"}
p := th.CreateNAD(types.NamespacedName{Namespace: "default", Name: "example"}, spec)
~~~

Signed-off-by: Martin Schuppert <[email protected]>

modules/common/test/helpers/nad.go

@@ -0,0 +1,54 @@
+/*
+Copyright 2024 Red Hat
+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 (
+	"github.com/onsi/gomega"
+	"k8s.io/apimachinery/pkg/types"
+	"sigs.k8s.io/controller-runtime/pkg/client"
+
+	networkv1 "github.com/k8snetworkplumbingwg/network-attachment-definition-client/pkg/apis/k8s.cni.cncf.io/v1"
+)
+
+// GetNAD - retrieves a NetworkAttachmentDefinition resource.
+//
+// example usage:
+//
+//	th.GetNAD(types.NamespacedName{Name: "test-nad", Namespace: "test-namespace"})
+func (tc *TestHelper) GetNAD(name types.NamespacedName) *networkv1.NetworkAttachmentDefinition {
+	nad := &networkv1.NetworkAttachmentDefinition{}
+	gomega.Eventually(func(g gomega.Gomega) {
+		g.Expect(tc.K8sClient.Get(tc.Ctx, name, nad)).Should(gomega.Succeed())
+	}, tc.Timeout, tc.Interval).Should(gomega.Succeed())
+	return nad
+}
+
+// CreateNAD creates a new NetworkAttachmentDefinition resource with the provided spec.
+//
+// Example usage:
+//
+//	spec := map[string]interface{}{"key": "value"}
+//	p := th.CreateNAD(types.NamespacedName{Namespace: "default", Name: "example"}, spec)
+func (tc *TestHelper) CreateNAD(name types.NamespacedName, spec map[string]interface{}) client.Object {
+	raw := map[string]interface{}{
+		"apiVersion": "k8s.cni.cncf.io/v1",
+		"kind":       "NetworkAttachmentDefinition",
+		"metadata": map[string]interface{}{
+			"name":      name.Name,
+			"namespace": name.Namespace,
+		},
+		"spec": spec,
+	}
+	return tc.CreateUnstructured(raw)
+}