Kubectl expose command accepts a filename param

pkg/kubectl/cmd/expose_test.go

@@ -202,7 +202,6 @@ func TestRunExposeService(t *testing.T) {
 			cmd.Flags().Set(flag, value)
 		}
 		cmd.Run(cmd, test.args)
-
 		if len(test.expected) > 0 {
 			out := buf.String()
 			if !strings.Contains(out, test.expected) {
@@ -211,3 +210,76 @@ func TestRunExposeService(t *testing.T) {
 		}
 	}
 }
+
+func TestRunExposeServiceFromFile(t *testing.T) {
+	test := struct {
+		calls    map[string]string
+		input    runtime.Object
+		flags    map[string]string
+		output   runtime.Object
+		expected string
+		status   int
+	}{
+		calls: map[string]string{
+			"GET":  "/namespaces/test/services/redis-master",
+			"POST": "/namespaces/test/services",
+		},
+		input: &api.Service{
+			ObjectMeta: api.ObjectMeta{Name: "baz", Namespace: "test", ResourceVersion: "12"},
+			TypeMeta:   api.TypeMeta{Kind: "Service", APIVersion: "v1"},
+			Spec: api.ServiceSpec{
+				Selector: map[string]string{"app": "go"},
+			},
+		},
+		flags: map[string]string{"selector": "func=stream", "protocol": "UDP", "port": "14", "name": "foo", "labels": "svc=test"},
+		output: &api.Service{
+			ObjectMeta: api.ObjectMeta{Name: "foo", Namespace: "test", ResourceVersion: "12", Labels: map[string]string{"svc": "test"}},
+			TypeMeta:   api.TypeMeta{Kind: "Service", APIVersion: "v1"},
+			Spec: api.ServiceSpec{
+				Ports: []api.ServicePort{
+					{
+						Name:     "default",
+						Protocol: api.Protocol("UDP"),
+						Port:     14,
+					},
+				},
+				Selector: map[string]string{"func": "stream"},
+			},
+		},
+		status: 200,
+	}
+
+	f, tf, codec := NewAPIFactory()
+	tf.Printer = &testPrinter{}
+	tf.Client = &client.FakeRESTClient{
+		Codec: codec,
+		Client: client.HTTPClientFunc(func(req *http.Request) (*http.Response, error) {
+			switch p, m := req.URL.Path, req.Method; {
+			case p == test.calls[m] && m == "GET":
+				return &http.Response{StatusCode: test.status, Body: objBody(codec, test.input)}, nil
+			case p == test.calls[m] && m == "POST":
+				return &http.Response{StatusCode: test.status, Body: objBody(codec, test.output)}, nil
+			default:
+				t.Fatalf("unexpected request: %#v\n%#v", req.URL, req)
+				return nil, nil
+			}
+		}),
+	}
+	tf.Namespace = "test"
+	buf := bytes.NewBuffer([]byte{})
+
+	cmd := NewCmdExposeService(f, buf)
+	cmd.SetOutput(buf)
+
+	for flag, value := range test.flags {
+		cmd.Flags().Set(flag, value)
+	}
+	cmd.Flags().Set("filename", "../../../examples/guestbook/redis-master-service.yaml")
+	cmd.Run(cmd, []string{})
+	if len(test.expected) > 0 {
+		out := buf.String()
+		if !strings.Contains(out, test.expected) {
+			t.Errorf("unexpected output: %s", out)
+		}
+	}
+}