Cluster UID store/retrieval

controllers/gce/storage/configmaps_test.go

@@ -0,0 +1,54 @@
+/*
+Copyright 2016 The Kubernetes Authors 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 storage
+
+import (
+	"testing"
+
+	"k8s.io/kubernetes/pkg/api"
+)
+
+func TestConfigMapUID(t *testing.T) {
+	vault := NewFakeConfigMapVault(api.NamespaceSystem, "ingress-uid")
+	uid := ""
+	k, exists, err := vault.Get()
+	if exists {
+		t.Errorf("Got a key from an empyt vault")
+	}
+	vault.Put(uid)
+	k, exists, err = vault.Get()
+	if !exists || err != nil {
+		t.Errorf("Failed to retrieve value from vault")
+	}
+	if k != "" {
+		t.Errorf("Failed to store empty string as a key in the vault")
+	}
+	vault.Put("newuid")
+	k, exists, err = vault.Get()
+	if !exists || err != nil {
+		t.Errorf("Failed to retrieve value from vault")
+	}
+	if k != "newuid" {
+		t.Errorf("Failed to modify uid")
+	}
+	if err := vault.Delete(); err != nil {
+		t.Errorf("Failed to delete uid %v", err)
+	}
+	if uid, exists, _ := vault.Get(); exists {
+		t.Errorf("Found uid %v, expected none", uid)
+	}
+}