Add unit test for PodSyncResult

pkg/kubelet/container/sync_result_test.go

+/*
+Copyright 2015 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 container
+
+import (
+	"errors"
+	"testing"
+)
+
+func TestPodSyncResult(t *testing.T) {
+	okResults := []*SyncResult{
+		NewSyncResult(StartContainer, "container_0"),
+		NewSyncResult(SetupNetwork, "pod"),
+	}
+	errResults := []*SyncResult{
+		NewSyncResult(KillContainer, "container_1"),
+		NewSyncResult(TeardownNetwork, "pod"),
+	}
+	errResults[0].Fail(errors.New("error_0"), "message_0")
+	errResults[1].Fail(errors.New("error_1"), "message_1")
+
+	// If the PodSyncResult doesn't contain error result, it should not be error
+	result := PodSyncResult{}
+	result.AddSyncResult(okResults...)
+	if result.Error() != nil {
+		t.Errorf("PodSyncResult should not be error: %v", result)
+	}
+
+	// If the PodSyncResult contains error result, it should be error
+	result = PodSyncResult{}
+	result.AddSyncResult(okResults...)
+	result.AddSyncResult(errResults...)
+	if result.Error() == nil {
+		t.Errorf("PodSyncResult should be error: %q", result)
+	}
+
+	// If the PodSyncResult is failed, it should be error
+	result = PodSyncResult{}
+	result.AddSyncResult(okResults...)
+	result.Fail(errors.New("error"))
+	if result.Error() == nil {
+		t.Errorf("PodSyncResult should be error: %q", result)
+	}
+
+	// If the PodSyncResult is added an error PodSyncResult, it should be error
+	errResult := PodSyncResult{}
+	errResult.AddSyncResult(errResults...)
+	result = PodSyncResult{}
+	result.AddSyncResult(okResults...)
+	result.AddPodSyncResult(errResult)
+	if result.Error() == nil {
+		t.Errorf("PodSyncResult should be error: %q", result)
+	}
+}