add tests for polymorphichelpers pkg

pkg/kubectl/polymorphichelpers/protocolsforobject_test.go

@@ -0,0 +1,145 @@
+/*
+Copyright 2018 The Kubernetes Authors.
+
+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 polymorphichelpers
+
+import (
+	"testing"
+
+	"reflect"
+
+	"k8s.io/apimachinery/pkg/runtime"
+	api "k8s.io/kubernetes/pkg/apis/core"
+	"k8s.io/kubernetes/pkg/apis/extensions"
+)
+
+func TestProtocolsForObject(t *testing.T) {
+	tests := []struct {
+		object    runtime.Object
+		expectErr bool
+	}{
+		{
+			object: &api.Pod{
+				Spec: api.PodSpec{
+					Containers: []api.Container{
+						{
+							Ports: []api.ContainerPort{
+								{
+									ContainerPort: 101,
+									Protocol:      "tcp",
+								},
+							},
+						},
+					},
+				},
+			},
+		},
+		{
+			object: &api.Service{
+				Spec: api.ServiceSpec{
+					Ports: []api.ServicePort{
+						{
+							Port:     101,
+							Protocol: "tcp",
+						},
+					},
+				},
+			},
+		},
+		{
+			object: &api.ReplicationController{
+				Spec: api.ReplicationControllerSpec{
+					Template: &api.PodTemplateSpec{
+						Spec: api.PodSpec{
+							Containers: []api.Container{
+								{
+									Ports: []api.ContainerPort{
+										{
+											ContainerPort: 101,
+											Protocol:      "tcp",
+										},
+									},
+								},
+							},
+						},
+					},
+				},
+			},
+		},
+		{
+			object: &extensions.Deployment{
+				Spec: extensions.DeploymentSpec{
+					Template: api.PodTemplateSpec{
+						Spec: api.PodSpec{
+							Containers: []api.Container{
+								{
+									Ports: []api.ContainerPort{
+										{
+											ContainerPort: 101,
+											Protocol:      "tcp",
+										},
+									},
+								},
+							},
+						},
+					},
+				},
+			},
+		},
+		{
+			object: &extensions.ReplicaSet{
+				Spec: extensions.ReplicaSetSpec{
+					Template: api.PodTemplateSpec{
+						Spec: api.PodSpec{
+							Containers: []api.Container{
+								{
+									Ports: []api.ContainerPort{
+										{
+											ContainerPort: 101,
+											Protocol:      "tcp",
+										},
+									},
+								},
+							},
+						},
+					},
+				},
+			},
+		},
+		{
+			object:    &api.Node{},
+			expectErr: true,
+		},
+	}
+	expectedPorts := map[string]string{"101": "tcp"}
+
+	for _, test := range tests {
+		actual, err := protocolsForObject(test.object)
+		if test.expectErr {
+			if err == nil {
+				t.Error("unexpected non-error")
+			}
+			continue
+		}
+		if !test.expectErr && err != nil {
+			t.Errorf("unexpected error: %v", err)
+			continue
+		}
+		if !reflect.DeepEqual(actual, expectedPorts) {
+			t.Errorf("expected ports %v, but got %v", expectedPorts, actual)
+		}
+	}
+}