github.com/google/martian/v3@v3.3.3/header/hopbyhop_modifier_test.go (about) 1 // Copyright 2015 Google Inc. All rights reserved. 2 // 3 // Licensed under the Apache License, Version 2.0 (the "License"); 4 // you may not use this file except in compliance with the License. 5 // You may obtain a copy of the License at 6 // 7 // http://www.apache.org/licenses/LICENSE-2.0 8 // 9 // Unless required by applicable law or agreed to in writing, software 10 // distributed under the License is distributed on an "AS IS" BASIS, 11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 // See the License for the specific language governing permissions and 13 // limitations under the License. 14 15 package header 16 17 import ( 18 "net/http" 19 "testing" 20 21 "github.com/google/martian/v3/proxyutil" 22 ) 23 24 func TestRemoveHopByHopHeaders(t *testing.T) { 25 m := NewHopByHopModifier() 26 req, err := http.NewRequest("GET", "/", nil) 27 if err != nil { 28 t.Fatalf("http.NewRequest(): got %v, want no error", err) 29 } 30 req.Header = http.Header{ 31 // Additional hop-by-hop headers are listed in the 32 // Connection header. 33 "Connection": []string{ 34 "X-Connection", 35 "X-Hop-By-Hop, close", 36 }, 37 38 // RFC hop-by-hop headers. 39 "Keep-Alive": []string{}, 40 "Proxy-Authenticate": []string{}, 41 "Proxy-Authorization": []string{}, 42 "Te": []string{}, 43 "Trailer": []string{}, 44 "Transfer-Encoding": []string{}, 45 "Upgrade": []string{}, 46 "Proxy-Connection": []string{}, 47 48 // Hop-by-hop headers listed in the Connection header. 49 "X-Connection": []string{}, 50 "X-Hop-By-Hop": []string{}, 51 52 // End-to-end header that should not be removed. 53 "X-End-To-End": []string{}, 54 } 55 56 if err := m.ModifyRequest(req); err != nil { 57 t.Fatalf("ModifyRequest(): got %v, want no error", err) 58 } 59 60 if got, want := len(req.Header), 1; got != want { 61 t.Fatalf("len(req.Header): got %d, want %d", got, want) 62 } 63 if _, ok := req.Header["X-End-To-End"]; !ok { 64 t.Errorf("req.Header[%q]: got !ok, want ok", "X-End-To-End") 65 } 66 67 res := proxyutil.NewResponse(200, nil, req) 68 res.Header = req.Header 69 if err := m.ModifyResponse(res); err != nil { 70 t.Fatalf("ModifyResponse(): got %v, want no error", err) 71 } 72 73 if got, want := len(res.Header), 1; got != want { 74 t.Fatalf("len(res.Header): got %d, want %d", got, want) 75 } 76 if _, ok := res.Header["X-End-To-End"]; !ok { 77 t.Errorf("res.Header[%q]: got !ok, want ok", "X-End-To-End") 78 } 79 }