Adding hostname to groups discovery information

pkg/util/net/http_test.go

@@ -0,0 +1,102 @@
+/*
+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 net
+
+import (
+	"net"
+	"net/http"
+	"reflect"
+	"testing"
+)
+
+func TestGetClientIP(t *testing.T) {
+	ipString := "10.0.0.1"
+	ip := net.ParseIP(ipString)
+	invalidIPString := "invalidIPString"
+	testCases := []struct {
+		Request    http.Request
+		ExpectedIP net.IP
+	}{
+		{
+			Request: http.Request{},
+		},
+		{
+			Request: http.Request{
+				Header: map[string][]string{
+					"X-Real-Ip": {ipString},
+				},
+			},
+			ExpectedIP: ip,
+		},
+		{
+			Request: http.Request{
+				Header: map[string][]string{
+					"X-Real-Ip": {invalidIPString},
+				},
+			},
+		},
+		{
+			Request: http.Request{
+				Header: map[string][]string{
+					"X-Forwarded-For": {ipString},
+				},
+			},
+			ExpectedIP: ip,
+		},
+		{
+			Request: http.Request{
+				Header: map[string][]string{
+					"X-Forwarded-For": {invalidIPString},
+				},
+			},
+		},
+		{
+			Request: http.Request{
+				Header: map[string][]string{
+					"X-Forwarded-For": {invalidIPString + "," + ipString},
+				},
+			},
+			ExpectedIP: ip,
+		},
+		{
+			Request: http.Request{
+				RemoteAddr: ipString,
+			},
+			ExpectedIP: ip,
+		},
+		{
+			Request: http.Request{
+				RemoteAddr: invalidIPString,
+			},
+		},
+		{
+			Request: http.Request{
+				Header: map[string][]string{
+					"X-Forwarded-For": {invalidIPString},
+				},
+				RemoteAddr: ipString,
+			},
+			ExpectedIP: ip,
+		},
+	}
+
+	for i, test := range testCases {
+		if a, e := GetClientIP(&test.Request), test.ExpectedIP; reflect.DeepEqual(e, a) != true {
+			t.Fatalf("test case %d failed. expected: %v, actual: %v", i+1, e, a)
+		}
+	}
+}