Refactor: pkg/util into sub-pkgs

pkg/util/pointer/pointer_test.go

@@ -0,0 +1,66 @@
+/*
+Copyright 2017 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 pointer
+
+import (
+	"testing"
+)
+
+func TestAllPtrFieldsNil(t *testing.T) {
+	testCases := []struct {
+		obj      interface{}
+		expected bool
+	}{
+		{struct{}{}, true},
+		{struct{ Foo int }{12345}, true},
+		{&struct{ Foo int }{12345}, true},
+		{struct{ Foo *int }{nil}, true},
+		{&struct{ Foo *int }{nil}, true},
+		{struct {
+			Foo int
+			Bar *int
+		}{12345, nil}, true},
+		{&struct {
+			Foo int
+			Bar *int
+		}{12345, nil}, true},
+		{struct {
+			Foo *int
+			Bar *int
+		}{nil, nil}, true},
+		{&struct {
+			Foo *int
+			Bar *int
+		}{nil, nil}, true},
+		{struct{ Foo *int }{new(int)}, false},
+		{&struct{ Foo *int }{new(int)}, false},
+		{struct {
+			Foo *int
+			Bar *int
+		}{nil, new(int)}, false},
+		{&struct {
+			Foo *int
+			Bar *int
+		}{nil, new(int)}, false},
+		{(*struct{})(nil), true},
+	}
+	for i, tc := range testCases {
+		if AllPtrFieldsNil(tc.obj) != tc.expected {
+			t.Errorf("case[%d]: expected %t, got %t", i, tc.expected, !tc.expected)
+		}
+	}
+}