Support Node/NodeList as a valid name in all versions

Also refactor v1beta1/conversion_test.go `v1beta` -> `current` to allow
easier cut and paste of tests.

pkg/api/v1beta3/conversion_test.go

@@ -0,0 +1,47 @@
+/*
+Copyright 2014 Google Inc. All rights reserved.
+
+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 v1beta3_test
+
+import (
+	"testing"
+
+	newer "github.com/GoogleCloudPlatform/kubernetes/pkg/api"
+	current "github.com/GoogleCloudPlatform/kubernetes/pkg/api/v1beta3"
+)
+
+func TestNodeConversion(t *testing.T) {
+	obj, err := current.Codec.Decode([]byte(`{"kind":"Minion","apiVersion":"v1beta3"}`))
+	if err != nil {
+		t.Fatalf("unexpected error: %v", err)
+	}
+	if _, ok := obj.(*newer.Minion); !ok {
+		t.Errorf("unexpected type: %#v", obj)
+	}
+
+	obj, err = current.Codec.Decode([]byte(`{"kind":"MinionList","apiVersion":"v1beta3"}`))
+	if err != nil {
+		t.Fatalf("unexpected error: %v", err)
+	}
+	if _, ok := obj.(*newer.MinionList); !ok {
+		t.Errorf("unexpected type: %#v", obj)
+	}
+
+	obj = &newer.Node{}
+	if err := current.Codec.DecodeInto([]byte(`{"kind":"Minion","apiVersion":"v1beta3"}`), obj); err != nil {
+		t.Fatalf("unexpected error: %v", err)
+	}
+}