Refactor go packages

config/config_test.go

@@ -0,0 +1,46 @@
+/*
+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 config
+
+import (
+	"fmt"
+	"testing"
+)
+
+func TestBuildLogFormatUpstream(t *testing.T) {
+
+	testCases := []struct {
+		useProxyProtocol bool // use proxy protocol
+		curLogFormat     string
+		expected         string
+	}{
+		{true, logFormatUpstream, fmt.Sprintf(logFormatUpstream, "$the_real_ip")},
+		{false, logFormatUpstream, fmt.Sprintf(logFormatUpstream, "$the_real_ip")},
+		{true, "my-log-format", "my-log-format"},
+		{false, "john-log-format", "john-log-format"},
+	}
+
+	for _, testCase := range testCases {
+		cfg := NewDefault()
+		cfg.UseProxyProtocol = testCase.useProxyProtocol
+		cfg.LogFormatUpstream = testCase.curLogFormat
+		result := cfg.BuildLogFormatUpstream()
+		if result != testCase.expected {
+			t.Errorf(" expected %v but return %v", testCase.expected, result)
+		}
+	}
+}